Misplaced Pages

#895104

96-763: Short names: The WannaCry ransomware attack was a worldwide cyberattack in May 2017 by the WannaCry ransomware cryptoworm , which targeted computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the Bitcoin cryptocurrency . It was propagated using EternalBlue , an exploit developed by the United States National Security Agency (NSA) for Windows systems. EternalBlue

192-426: A denial-of-service attack ) rather than integrity (modifying data) or confidentiality (copying data without changing it). State actors are more likely to keep the attack secret. Sophisticated attacks using valuable exploits are more less likely to be detected or announced – as the perpetrator wants to protect the usefulness of the exploit. Evidence collection is done immediately, prioritizing volatile evidence that

288-415: A Bangladesh bank heist in 2016—and linked to North Korea ). This could also be either simple re-use of code by another group or an attempt to shift blame—as in a cyber false flag operation; but a leaked internal NSA memo is alleged to have also linked the creation of the worm to North Korea. Brad Smith , the president of Microsoft, said he believed North Korea was the originator of the WannaCry attack, and

384-514: A breach are usually a negative externality for the business. Critical infrastructure is that considered most essential—such as healthcare, water supply, transport, and financial services—which has been increasingly governed by cyber-physical systems that depend on network access for their functionality. For years, writers have warned of cataclysmic consequences of cyberattacks that have failed to materialize as of 2023 . These extreme scenarios could still occur, but many experts consider that it

480-465: A compelling interest in finding out whether a state is behind the attack. Unlike attacks carried out in person, determining the entity behind a cyberattack is difficult. A further challenge in attribution of cyberattacks is the possibility of a false flag attack , where the actual perpetrator makes it appear that someone else caused the attack. Every stage of the attack may leave artifacts , such as entries in log files, that can be used to help determine

576-543: A custom support plan. Organizations were advised to patch Windows and plug the vulnerability in order to protect themselves from the cyber attack. The head of Microsoft's Cyber Defense Operations Center, Adrienne Hall, said that "Due to the elevated risk for destructive cyber-attacks at this time, we made the decision to take this action because applying these updates provides further protection against potential attacks with characteristics similar to WannaCrypt [alternative name to WannaCry]". Researcher Marcus Hutchins discovered

672-662: A cyberattack. Windows Server 2008 R2 Enhancements in Windows Server 2008 R2 include new functionality for Active Directory , new virtualization and management features, version 7.5 of the Internet Information Services web server and support for up to 256 logical processors. It is built on the same kernel used with the client-oriented Windows 7 , and is the first server operating system released by Microsoft which dropped support for 32-bit processors, an addition which carried over to

768-484: A data breach, criminals make money by selling data, such as usernames, passwords, social media or customer loyalty account information, debit and credit card numbers, and personal health information (see medical data breach ). This information may be used for a variety of purposes, such as spamming , obtaining products with a victim's loyalty or payment information, prescription drug fraud , insurance fraud , and especially identity theft . Consumer losses from

864-490: A duty to protect their countries' citizens. Others have also commented that this attack shows that the practice of intelligence agencies to stockpile exploits for offensive purposes rather than disclosing them for defensive purposes may be problematic. Microsoft president and chief legal officer Brad Smith wrote, "Repeatedly, exploits in the hands of governments have leaked into the public domain and caused widespread damage. An equivalent scenario with conventional weapons would be

960-441: A form of warfare are likely to violate the prohibition of aggression. Therefore, they could be prosecuted as a crime of aggression . There is also agreement that cyberattacks are governed by international humanitarian law , and if they target civilian infrastructure, they could be prosecuted as a war crime , crime against humanity , or act of genocide . International courts cannot enforce these laws without sound attribution of

1056-416: A further £150 [million] over the next two years" to address key cyber security weaknesses. Cyberattack A cyberattack (or cyber attack) occurs when there is an unauthorized action against computer infrastructure that compromises the confidentiality, integrity, or availability of its content. The rising dependence on increasingly complex and interconnected computer systems in most domains of life

SECTION 10

#1732776342896

1152-644: A hacker is an individual working for themself. However, many cyber threats are teams of well-resourced experts. "Growing revenues for cyber criminals are leading to more and more attacks, increasing professionalism and highly specialized attackers. In addition, unlike other forms of crime, cybercrime can be carried out remotely, and cyber attacks often scale well." Many cyberattacks are caused or enabled by insiders, often employees who bypass security procedures to get their job done more efficiently. Attackers vary widely in their skill and sophistication and well as their determination to attack

1248-429: A huge increase in hacked and breached data. The worldwide information security market is forecast to reach $ 170.4 billion in 2022. Over time, computer systems make up an increasing portion of daily life and interactions. While the increasing complexity and connectedness of the systems increases the efficiency, power, and convenience of computer technology, it also renders the systems more vulnerable to attack and worsens

1344-443: A need for 24/7 operation, the risk of formerly working applications breaking because of the changes, lack of personnel or time to install them, or other reasons. The attack began at 07:44 UTC on 12 May 2017 and was halted a few hours later at 15:03 UTC by the registration of a kill switch discovered by Marcus Hutchins . The kill switch prevented already infected computers from being encrypted or further spreading WannaCry. The attack

1440-741: A particular target, as opposed to opportunistically picking one easy to attack. The skill level of the attacker determined which types of attacks they are prepared to mount. The most sophisticated attackers can persist undetected on a hardened system for an extended period of time. Motivations and aims also differ. Depending whether the expected threat is passive espionage, data manipulation, or active hijacking, different mitigation methods may be needed. Software vendors and governments are mainly interested in undisclosed vulnerabilities ( zero-days ), while organized crime groups are more interested in ready-to-use exploit kits based on known vulnerabilities, which are much cheaper. The lack of transparency in

1536-501: A payment of around US$ 300 in bitcoin within three days, or US$ 600 within seven days (equivalent to about $ 370 and $ 750 in 2023), warning that "you have not so enough time. [ sic ]" Three hardcoded bitcoin addresses, or wallets, are used to receive the payments of victims. As with all such wallets, their transactions and balances are publicly accessible even though the cryptocurrency wallet owners remain unknown. Several organizations released detailed technical write-ups of

1632-420: A processor with PAE, SSE2 and NX, in any supported architecture. Seven editions of Windows Server 2008 R2 were released: Foundation, Standard, Enterprise, Datacenter, Web, HPC Server and Itanium , as well as Windows Storage Server 2008 R2. A home server variant called Windows Home Server 2011 was also released. Microsoft introduced Windows Server 2008 R2 at the 2008 Professional Developers Conference as

1728-555: A report by Members of Parliament concluded that all 200 NHS hospitals or other organisations checked in the wake of the WannaCry attack still failed cybersecurity checks. NHS hospitals in Wales and Northern Ireland were unaffected by the attack. Nissan Motor Manufacturing UK in Tyne and Wear , England, halted production after the ransomware infected some of their systems. Renault also stopped production at several sites in an attempt to stop

1824-417: A robust patching system to ensure that all devices are kept up to date. There is little evidence about the effectiveness and cost-effectiveness of different cyberattack prevention measures. Although attention to security can reduce the risk of attack, achieving perfect security for a complex system is impossible, and many security measures have unacceptable cost or usability downsides. For example, reducing

1920-418: A service , where hackers sell prepacked software that can be used to cause a cyberattack, is increasingly popular as a lower risk and higher profit activity than traditional hacking. A major form of this is to create a botnet of compromised devices and rent or sell it to another cybercriminal. Different botnets are equipped for different tasks such as DDOS attacks or password cracking. It is also possible to buy

2016-471: A subset of the .NET Framework , so that some applications (including ASP.NET web sites and Windows PowerShell 2.0) can be used. Performance improvement was a major area of focus for this release; Microsoft has stated that work was done to decrease boot time, improve the efficiency of I/O operations while using less processing power, and generally improve the speed of storage devices, especially iSCSI . Active Directory has several new features when raising

SECTION 20

#1732776342896

2112-515: A suspicious link or email attachment), especially those that depend on user error. However, too many rules can cause employees to disregard them, negating any security improvement. Some insider attacks can also be prevented using rules and procedures. Technical solutions can prevent many causes of human error that leave data vulnerable to attackers, such as encrypting all sensitive data, preventing employees from using insecure passwords, installing antivirus software to prevent malware, and implementing

2208-419: A system, exploit them and create malware to carry out their goals, and deliver it to the targeted system. Once installed, the malware can have a variety of effects depending on its purpose. Detection of cyberattacks is often absent or delayed, especially when the malware attempts to spy on the system while remaining undiscovered. If it is discovered, the targeted organization may attempt to collect evidence about

2304-552: A tool known as WannaKey, which automates this process on Windows XP systems. This approach was iterated upon by a second tool known as Wanakiwi, which was tested to work on Windows 7 and Server 2008 R2 as well. Within four days of the initial outbreak, new infections had slowed to a trickle due to these responses. Linguistic analysis of the ransom notes indicated the authors were likely fluent in Chinese and proficient in English, as

2400-641: A wake-up call for companies to finally take IT security [seriously]". The effects of the attack also had political implications; in the United Kingdom , the impact on the National Health Service quickly became political, with claims that the effects were exacerbated by government underfunding of the NHS; in particular, the NHS ceased its paid Custom Support arrangement to continue receiving support for unsupported Microsoft software used within

2496-481: A wizard for split-scope configuration, DHCP Server role migration using WSMT, support for DHCPv6 Option 15 (User Class) and Option 32 (Information Refresh Time). The DHCP server runs in the context of the Network Service account which has fewer privileges to reduce potential damage if compromised. Windows Server 2008 R2 supports up to 64 physical processors or up to 256 logical processors per system. (Only

2592-617: Is a backdoor tool, also released by The Shadow Brokers on 14 April 2017. Starting from 21 April 2017, security researchers reported that there were tens of thousands of computers with the DoublePulsar backdoor installed. By 25 April, reports estimated that the number of infected computers could be up to several hundred thousand, with numbers increasing every day. The WannaCry code can take advantage of any existing DoublePulsar infection, or installs it itself. On 9 May 2017, private cybersecurity company RiskSense released code on GitHub with

2688-426: Is an effective way to limit the damage. The response is likely to require a wide variety of skills, from technical investigation to legal and public relations. Because of the prevalence of cyberattacks, some companies plan their incident response before any attack is detected, and may designate a computer emergency response team to be prepared to handle incidents. Many attacks are never detected. Of those that are,

2784-531: Is based on evidence." In a press conference the following day, Bossert said that the evidence indicates that Kim Jong-un had given the order to launch the malware attack. Bossert said that Canada, New Zealand and Japan agree with the United States' assessment of the evidence that links the attack to North Korea, while the United Kingdom's Foreign and Commonwealth Office says it also stands behind

2880-501: Is fully patched. Nevertheless, fully patched systems are still vulnerable to exploits using zero-day vulnerabilities . The highest risk of attack occurs just after a vulnerability has been publicly disclosed or a patch is released, because attackers can create exploits faster than a patch can be developed and rolled out. Software solutions aim to prevent unauthorized access and detect the intrusion of malicious software. Training users can avoid cyberattacks (for example, not to click on

2976-414: Is installed, its activity varies greatly depending on the attacker's goals. Many attackers try to eavesdrop on a system without affecting it. Although this type of malware can have unexpected side effects , it is often very difficult to detect. Botnets are networks of compromised devices that can be used to send spam or carry out denial-of-service attacks—flooding a system with too many requests for

WannaCry ransomware attack - Misplaced Pages Continue

3072-455: Is less important for some web-based services, it can be the most crucial aspect for industrial systems. In the first six months of 2017, two billion data records were stolen or impacted by cyber attacks, and ransomware payments reached US$ 2 billion , double that in 2016. In 2020, with the increase of remote work as an effect of the COVID-19 global pandemic, cybersecurity statistics reveal

3168-422: Is likely to be erased quickly. Gathering data about the breach can facilitate later litigation or criminal prosecution, but only if the data is gathered according to legal standards and the chain of custody is maintained. Containing the affected system is often a high priority after an attack, and may be enacted by shutoff, isolation, use of a sandbox system to find out more about the adversary patching

3264-427: Is not legally liable for the cost if a vulnerability is used in an attack, which creates an incentive to make cheaper but less secure software. Vulnerabilities vary in their ability to be exploited by malicious actors. The most valuable allow the attacker to inject and run their own code (called malware ), without the user being aware of it. Without a vulnerability enabling access, the attacker cannot gain access to

3360-624: Is the detection of systems vulnerable to attack and hardening these systems to make attacks more difficult, but it is only partially effective. Formal risk assessment for compromise of highly complex and interconnected systems is impractical and the related question of how much to spend on security is difficult to answer. Because of the ever changing and uncertain nature of cyber-threats, risk assessment may produce scenarios that are costly or unaffordable to mitigate. As of 2019 , there are no commercially available, widely used active defense systems for protecting systems by intentionally increasing

3456-421: Is the main factor that causes vulnerability to cyberattacks, since virtually all computer systems have bugs that can be exploited by attackers. Although it is impossible or impractical to create a perfectly secure system, there are many defense mechanisms that can make a system more difficult to attack. Perpetrators of a cyberattack can be criminals, hacktivists , or states. They attempt to find weaknesses in

3552-712: Is unlikely that challenges in inflicting physical damage or spreading terror can be overcome. Smaller-scale cyberattacks, sometimes resulting in interruption of essential services, regularly occur. There is little empirical evidence of economic harm (such as reputational damage ) from breaches except the direct cost for such matters as legal, technical, and public relations recovery efforts. Studies that have attempted to correlate cyberattacks to short-term declines in stock prices have found contradictory results, with some finding modest losses, others finding no effect, and some researchers criticizing these studies on methodological grounds. The effect on stock price may vary depending on

3648-613: The Council on Foreign Relations , stated that "the patching and updating systems are broken, basically, in the private sector and in government agencies". In addition, Segal said that governments' apparent inability to secure vulnerabilities "opens a lot of questions about backdoors and access to encryption that the government argues it needs from the private sector for security". Arne Schönbohm , president of Germany's Federal Office for Information Security (BSI), stated that "the current attacks show how vulnerable our digital society is. It's

3744-529: The EternalBlue exploit to gain access, and the DoublePulsar tool to install and execute a copy of itself. WannaCry versions 0, 1 and 2 were created using Microsoft Visual C++ 6.0 . EternalBlue is an exploit of Microsoft's implementation of their Server Message Block (SMB) protocol released by The Shadow Brokers . Much of the attention and comment around the event was occasioned by the fact that

3840-773: The Microsoft Imagine program (known as DreamSpark at the time). A reviewer guide published by the company describes several areas of improvement in R2. These include new virtualization capabilities ( Live Migration , Cluster Shared Volumes using Failover Clustering and Hyper-V ), reduced power consumption, a new set of management tools and new Active Directory capabilities such as a "recycle bin" for deleted objects. IIS 7.5 has been added to this release which also includes updated FTP server services. Security enhancements include encrypted clientless authenticated VPN services through DirectAccess for clients using Windows 7, and

3936-403: The Microsoft Windows operating system by encrypting (locking) data and demanding ransom payments in the Bitcoin cryptocurrency . The worm is also known as WannaCrypt, Wana Decrypt0r 2.0, WanaCrypt0r 2.0, and Wanna Decryptor. It is considered a network worm because it also includes a transport mechanism to automatically spread itself. This transport code scans for vulnerable systems, then uses

WannaCry ransomware attack - Misplaced Pages Continue

4032-403: The prime numbers used to generate the payload's private keys from the memory, making it potentially possible to retrieve the required key if they had not yet been overwritten or cleared from resident memory. The key is kept in the memory if the WannaCry process has not been killed and the computer has not been rebooted after being infected. This behaviour was used by a French researcher to develop

4128-547: The release candidate was made available to subscribers of TechNet and MSDN. On May 5, 2009, the release candidate was made available to the public via the Microsoft download center. According to Windows Server Blog , the following are the dates of the year 2009 when Microsoft Windows Server 2008 R2 has been made available to various distribution channels: Additionally, qualifying students have been able to download Windows Server 2008 R2 Standard edition in 15 languages from

4224-508: The Datacenter and Itanium editions can take advantage of the capability of 64 physical processors. Enterprise, the next-highest edition after those two, can only use 8.) When deployed in a file server role, new File Classification Infrastructure services allow files to be stored on designated servers in the enterprise based on business naming conventions, relevance to business processes and overall corporate policies. Server Core includes

4320-513: The Internet, and laterally to computers on the same network. On the local system, the WannaCry executable file extracts and installs binary and configuration files from its resource section. It also hides the extracted directory, modifies security descriptors, creates an encryption key, deletes shadow copies, and so on. As with other modern ransomware, the payload displays a message informing the user that their files have been encrypted, and demands

4416-532: The NSA had " privately disclosed the flaw used to attack hospitals when they found it, not when they lost it, the attack may not have happened". British cybersecurity expert Graham Cluley also sees "some culpability on the part of the U.S. intelligence services". According to him and others "they could have done something ages ago to get this problem fixed, and they didn't do it". He also said that despite obvious uses for such tools to spy on people of interest , they have

4512-729: The U.S. National Security Agency (NSA) (from whom the exploit was likely stolen) had already discovered the vulnerability, but used it to create an exploit for its own offensive work , rather than report it to Microsoft. Microsoft eventually discovered the vulnerability, and on Tuesday , 14 March 2017, they issued security bulletin MS17-010, which detailed the flaw and announced that patches had been released for all Windows versions that were currently supported at that time, these being Windows Vista , Windows 7 , Windows 8.1 , Windows 10 , Windows Server 2008 , Windows Server 2008 R2 , Windows Server 2012 , and Windows Server 2016 . DoublePulsar

4608-562: The U.S. military having some of its Tomahawk missiles stolen." Russian President Vladimir Putin placed the responsibility of the attack on U.S. intelligence services for having created EternalBlue. On 17 May 2017, United States bipartisan lawmakers introduced the PATCH Act that aims to have exploits reviewed by an independent board to "balance the need to disclose vulnerabilities with other national security interests while increasing transparency and accountability to maintain public trust in

4704-618: The UK's National Cyber Security Centre reached the same conclusion. On 18 December 2017, the United States Government formally announced that it publicly considers North Korea to be the main culprit behind the WannaCry attack. Then- President Trump 's Homeland Security Advisor , Tom Bossert , wrote an op-ed in The Wall Street Journal about this charge, saying "We do not make this allegation lightly. It

4800-640: The United States' assertion. North Korea, however, denied being responsible for the cyberattack. On 6 September 2018, the U.S. Department of Justice (DoJ) announced formal charges against Park Jin-hyok for involvement in the Sony Pictures hack of 2014. The DoJ contended that Park was a North Korean hacker working as part of a team of experts for the North Korean Reconnaissance General Bureau . The Department of Justice asserted this team also had been involved in

4896-857: The WannaCry attack, among other activities. The ransomware campaign was unprecedented in scale according to Europol , which estimates that around 200,000 computers were infected across 150 countries. According to Kaspersky Lab , the four most affected countries were Russia , Ukraine , India and Taiwan . One of the largest agencies struck by the attack was the National Health Service hospitals in England and Scotland, and up to 70,000 devices—including computers, MRI scanners , blood-storage refrigerators and theatre equipment—may have been affected. On 12 May, some NHS services had to turn away non-critical emergencies, and some ambulances were diverted. In 2016, thousands of computers in 42 separate NHS trusts in England were reported to be still running Windows XP. In 2018

SECTION 50

#1732776342896

4992-705: The addition of DNSSEC support for DNS Server Service . Even though DNSSEC as such is supported, only one signature algorithm is available: #5/RSA/SHA-1. Since many zones use a different algorithm – including the root zone – this means that in reality Windows still can't serve as a recursive resolver. The DHCP server supports a large number of enhancements such as MAC address -based control filtering, converting active leases into reservations or link layer based filters, DHCppP Name protection for non-Windows machines to prevent name squatting, better performance through aggressive lease database caching, DHCP activity logging, auto-population of certain network interface fields,

5088-466: The affected computers were running Windows 7. In a controlled testing environment, the cybersecurity firm Kryptos Logic found that it was unable to infect a Windows XP system with WannaCry using just the exploits, as the payload failed to load, or caused the operating system to crash rather than actually execute and encrypt files. However, when executed manually, WannaCry could still operate on Windows XP. Experts quickly advised affected users against paying

5184-729: The attack, remove malware from its systems, and close the vulnerability that enabled the attack. Cyberattacks can cause a variety of harms to targeted individuals, organizations, and governments, including significant financial losses and identity theft . They are usually illegal both as a method of crime and warfare , although correctly attributing the attack is difficult and perpetrators are rarely prosecuted. A cyberattack can be defined as any attempt by an individual or organization "using one or more computers and computer systems to steal, expose, change, disable or eliminate information, or to breach computer information systems, computer networks, and computer infrastructures". Definitions differ as to

5280-522: The attack, without which countermeasures by a state are not legal either. In many countries, cyberattacks are prosecutable under various laws aimed at cybercrime . Attribution of the attack beyond reasonable doubt to the accused is also a major challenge in criminal proceedings. In 2021, United Nations member states began negotiating a draft cybercrime treaty . Many jurisdictions have data breach notification laws that require organizations to notify people whose personal data has been compromised in

5376-417: The attack. Those still running unsupported versions of Microsoft Windows , such as Windows XP and Windows Server 2003 were at particularly high risk because no security patches had been released since April 2014 for Windows XP and July 2015 for Windows Server 2003. A Kaspersky Lab study reported, however, that less than 0.1 percent of the affected computers were running Windows XP, and that 98 percent of

5472-441: The attacker's goals and identity. In the aftermath of an attack, investigators often begin by saving as many artifacts as they can find, and then try to determine the attacker. Law enforcement agencies may investigate cyber incidents although the hackers responsible are rarely caught. Most states agree that cyberattacks are regulated under the laws governing the use of force in international law , and therefore cyberattacks as

5568-422: The average time to discovery is 197 days. Some systems can detect and flag anomalies that may indicate an attack, using such technology as antivirus , firewall , or an intrusion detection system . Once suspicious activity is suspected, investigators look for indicators of attack and indicators of compromise . Discovery is quicker and more likely if the attack targets information availability (for example with

5664-401: The company's contractual obligations. After the breach is fully contained, the company can then work on restoring all systems to operational. Maintaining a backup and having tested incident response procedures are used to improve recovery. Attributing a cyberattack is difficult, and of limited interest to companies that are targeted by cyberattacks. In contrast, secret services often have

5760-404: The complexity and functionality of the system is effective at reducing the attack surface . Disconnecting systems from the internet is one truly effective measure against attacks, but it is rarely feasible. In some jurisdictions, there are legal requirements for protecting against attacks. The cyber kill chain is the process by which perpetrators carry out cyberattacks. After the malware

5856-402: The complexity or variability of systems to make it harder to attack. The cyber resilience approach, on the other hand, assumes that breaches will occur and focuses on protecting essential functionality even if parts are compromised, using approaches such as micro-segmentation , zero trust , and business continuity planning . The majority of attacks can be prevented by ensuring all software

SECTION 60

#1732776342896

5952-554: The computers that created the ransomware were set to UTC+09:00 , which is used in Korea . A security researcher initially posted a tweet referencing code similarities between WannaCry and previous malware. The cybersecurity companies Kaspersky Lab and Symantec have both said the code has some similarities with that previously used by the Lazarus Group (believed to have carried out the cyberattack on Sony Pictures in 2014 and

6048-468: The consequences of an attack, should one occur. Despite developers' goal of delivering a product that works entirely as intended, virtually all software and hardware contains bugs. If a bug creates a security risk, it is called a vulnerability . Patches are often released to fix identified vulnerabilities, but those that remain unknown ( zero days ) as well as those that have not been patched are still liable for exploitation. The software vendor

6144-408: The consumer-oriented Windows 11 in 2021. Windows Server 2008 R2 is the final version of Windows Server that includes Enterprise and Web Server editions, the final that got a service pack from Microsoft and the final version that supports IA-64 and processors without PAE , SSE2 and NX (although a 2018 update dropped support for non-SSE2 processors). Its successor, Windows Server 2012, requires

6240-523: The cyber attack could reach up to US$ 4 billion, with other groups estimating the losses to be in the hundreds of millions. The following is an alphabetical list of organisations confirmed to have been affected: A number of experts highlighted the NSA 's non-disclosure of the underlying vulnerability, and their loss of control over the EternalBlue attack tool that exploited it. Edward Snowden said that if

6336-457: The domain by switching to a cached version of the site, capable of dealing with much higher traffic loads than the live site. Separately, researchers from University College London and Boston University reported that their PayBreak system could defeat WannaCry and several other families of ransomware by recovering the keys used to encrypt the user's data. It was discovered that Windows encryption APIs used by WannaCry may not completely clear

6432-576: The extended support phase; Microsoft continued to provide security updates every month for Windows Server 2008 R2, however, free technical support, warranty claims, and design changes were no longer offered. Extended support ended on January 14, 2020, about ten years after the release of Windows Server 2008 R2. In August 2019, researchers reported that "all modern versions of Microsoft Windows" may be at risk for "critical" system compromise due to design flaws of hardware device drivers from multiple providers. Microsoft announced that Server 2008 R2 would be

6528-747: The forest and domain functional levels to Windows Server 2008 R2: Two added features are Authentication Mechanism Assurance and Automatic SPN Management. When raising the forest functional level, the Active Directory recycle bin feature is available and can be enabled using the Active Directory Module for PowerShell. Support for the RTM version of Windows Server 2008 R2 ended on April 9, 2013. Users had to install Service Pack 1 to continue receiving updates. On January 13, 2015, Windows Server 2008 R2 exited mainstream support and entered

6624-411: The kill switch domain hardcoded in the malware. Registering a domain name for a DNS sinkhole stopped the attack spreading as a worm, because the ransomware only encrypted the computer's files if it was unable to connect to that domain, which all computers infected with WannaCry before the website's registration had been unable to do. While this did not help already infected systems, it severely slowed

6720-502: The last version of Windows supporting the Itanium architecture, with extended support to end on July 10, 2018. However, monthly security updates continued until January 14, 2020, and a final unscheduled update appeared in May 2020 via WSUS . Windows Server 2008 R2 was eligible for the paid ESU (Extended Security Updates) program. This program allowed volume license customers to purchase, in yearly installments, security updates for

6816-433: The malware and discovered a "kill switch". Later globally dispersed security researchers collaborated online to develop open-source tools that allow for decryption without payment under some circumstances. Snowden states that when " NSA -enabled ransomware eats the Internet, help comes from researchers, not spy agencies" and asks why this is the case. Adam Segal , director of the digital and cyberspace policy program at

6912-613: The malware, including a senior security analyst at RiskSense, Microsoft , Cisco , Malwarebytes , Symantec , and McAfee . The attack began on Friday, 12 May 2017, with evidence pointing to an initial infection in Asia at 07:44 UTC. The initial infection was likely through an exposed vulnerable SMB port, rather than email phishing as initially assumed. Within a day the code was reported to have infected more than 230,000 computers in over 150 countries. Organizations that had not installed Microsoft's security update from March were affected by

7008-470: The market causes problems, such as buyers being unable to guarantee that the zero-day vulnerability was not sold to another party. Both buyers and sellers advertise on the dark web and use cryptocurrency for untraceable transactions. Because of the difficulty in writing and maintaining software that can attack a wide variety of systems, criminals found they could make more money by renting out their exploits rather than using them directly. Cybercrime as

7104-642: The negative effects of cyberattacks helps organizations ensure that their prevention strategies are cost-effective. One paper classifies the harm caused by cyberattacks in several domains: Thousands of data records are stolen from individuals every day. According to a 2020 estimate, 55 percent of data breaches were caused by organized crime , 10 percent by system administrators , 10 percent by end users such as customers or employees, and 10 percent by states or state-affiliated actors. Opportunistic criminals may cause data breaches—often using malware or social engineering attacks , but they will typically move on if

7200-566: The operating system until January 10, 2023, only for Standard, Enterprise, and Datacenter volume licensed editions. The program was included with Microsoft Azure purchases, and offered Azure customers an additional year of support, until January 9, 2024. Prior to the ESU program becoming available, Windows Server 2008 R2 was eligible for the now discontinued, paid Premium Assurance program (an add-on to Microsoft Software Assurance ) available to volume license customers. Microsoft will, however, honor

7296-807: The organization, including Windows XP. Home Secretary Amber Rudd refused to say whether patient data had been backed up , and Shadow Health Secretary Jon Ashworth accused Health Secretary Jeremy Hunt of refusing to act on a critical note from Microsoft, the National Cyber Security Centre (NCSC) and the National Crime Agency that had been received two months previously. Others argued that hardware and software vendors often fail to account for future security flaws, selling systems that—due to their technical design and market incentives—eventually won't be able to properly receive and apply patches. The NHS denied that it

7392-647: The process". On 15 June 2017, the United States Congress was to hold a hearing on the attack. Two subpanels of the House Science Committee were to hear the testimonies from various individuals working in the government and non-governmental sector about how the U.S. can improve its protection mechanisms for its systems against similar attacks in the future. Marcus Hutchins , a cybersecurity researcher, working in loose collaboration with UK's National Cyber Security Centre , researched

7488-693: The program for customers who purchased it between March 2017 and July 2018 (while it was available). The program provides an extra six years of security update support, until January 13, 2026. This will mark the final end of all security updates for the Windows NT 6.1 product line after 16 years, 5 months, and 22 days. Paid extended updates are not available for Itanium customers. On February 9, 2011, Microsoft officially released Service Pack 1 (SP1) for Windows 7 and Windows Server 2008 R2 to OEM partners. Apart from bug fixes, it introduces two new major functions, RemoteFX and Dynamic Memory. RemoteFX enables

7584-601: The ransom due to no reports of people getting their data back after payment and as high revenues would encourage more of such campaigns. As of 14 June 2017, after the attack had subsided, a total of 327 payments totaling US$ 130,634.77 (51.62396539 BTC) had been transferred. The day after the initial attack in May, Microsoft released out-of-band security updates for end-of-life products Windows XP , Windows Server 2003 and Windows 8 ; these patches had been created in February, but were previously only available to those who paid for

7680-490: The security is above average. More organized criminals have more resources and are more focused in their targeting of particular data . Both of them sell the information they obtain for financial gain. Another source of data breaches are politically motivated hackers , for example Anonymous , that target particular objectives. State-sponsored hackers target either citizens of their country or foreign entities, for such purposes as political repression and espionage . After

7776-548: The server variant of Windows 7 , based on the Windows NT kernel. On January 7, 2009, a beta release of Windows Server 2008 R2 was made available to subscribers of Microsoft's TechNet and MSDN programs, as well as those participating in the Microsoft Connect program for Windows 7. Two days later, the beta was released to the public via the Microsoft Download Center. On April 30, 2009,

7872-660: The software used to create a botnet and bots that load the purchaser's malware onto a botnet's devices. DDOS as a service using botnets retained under the control of the seller is also common, and may be the first cybercrime as a service product, and can also be committed by SMS flooding on the cellular network. Malware and ransomware as a service have made it possible for individuals without technical ability to carry out cyberattacks. Targets of cyberattacks range from individuals to corporations and government entities. Many cyberattacks are foiled or unsuccessful, but those that succeed can have devastating consequences. Understanding

7968-480: The spread of the initial infection and gave time for defensive measures to be deployed worldwide, particularly in North America and Asia, which had not been attacked to the same extent as elsewhere. On 14 May, a first variant of WannaCry appeared with a new and second kill-switch registered by Matt Suiche on the same day. This was followed by a second variant with the third and last kill-switch on 15 May, which

8064-562: The spread of the ransomware. Spain's Telefónica , FedEx and Deutsche Bahn were hit, along with many other countries and companies worldwide. The attack's impact is said to be relatively low compared to other potential attacks of the same type and could have been much worse had Hutchins not discovered that a kill switch had been built in by its creators or if it had been specifically targeted on highly critical infrastructure , like nuclear power plants , dams or railway systems. According to cyber-risk-modeling firm Cyence, economic losses from

8160-524: The stated purpose of allowing legal white hat penetration testers to test the CVE-2017-0144 exploit on unpatched systems. When executed, the WannaCry malware first checks the kill switch domain name (iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com); if it is not found, then the ransomware encrypts the computer's data, then attempts to exploit the SMB vulnerability to spread out to random computers on

8256-431: The system to handle at once, causing it to become unusable. Attackers may also use computers to mine cryptocurrencies , such as Bitcoin , for their own profit. Ransomware is software used to encrypt or destroy data; attackers demand payment for the restoration of the targeted system. The advent of cryptocurrency enabling anonymous transactions has led to a dramatic increase in ransomware demands. The stereotype of

8352-442: The system. The Vulnerability Model (VM) identifies attack patterns, threats, and valuable assets, which can be physical or intangible. It addresses security concerns like confidentiality, integrity, availability, and accountability within business, application, or infrastructure contexts. A system's architecture and design decisions play a major role in determining how safe it can be. The traditional approach to improving security

8448-451: The type of attack. Some experts have argued that the evidence suggests there is not enough direct costs or reputational damage from breaches to sufficiently incentivize their prevention. Government websites and services are among those affected by cyberattacks. Some experts hypothesize that cyberattacks weaken societal trust or trust in the government, but as of 2023 this notion has only limited evidence. Responding quickly to attacks

8544-483: The type of compromise required – for example, requiring the system to produce unexpected responses or cause injury or property damage. Some definitions exclude attacks carried out by non-state actors and others require the target to be a state. Keeping a system secure relies on maintaining the CIA triad : confidentiality (no unauthorized access), integrity (no unauthorized modification), and availability. Although availability

8640-464: The versions of the notes in those languages were probably human-written while the rest seemed to be machine-translated . According to an analysis by the FBI's Cyber Behavioral Analysis Center, the computer that created the ransomware language files had Hangul language fonts installed, as evidenced by the presence of the "\fcharset129" Rich Text Format tag. Metadata in the language files also indicated that

8736-606: The vulnerability, and rebuilding . Once the exact way that the system was compromised is identified, there is typically only one or two technical vulnerabilities that need to be addressed in order to contain the breach and prevent it from reoccurring. A penetration test can then verify that the fix is working as expected. If malware is involved, the organization must investigate and close all infiltration and exfiltration vectors, as well as locate and remove all malware from its systems. Containment can compromise investigation, and some tactics (such as shutting down servers) can violate

8832-509: Was behind the attack, although North Korea has denied any involvement with the attack. A new variant of WannaCry forced Taiwan Semiconductor Manufacturing Company (TSMC) to temporarily shut down several of its chip-fabrication factories in August 2018. The worm spread onto 10,000 machines in TSMC's most advanced facilities. WannaCry is a ransomware cryptoworm , which targets computers running

8928-476: Was estimated to have affected more than 300,000 computers across 150 countries, with total damages ranging from hundreds of millions to billions of dollars . At the time, security experts believed from preliminary evaluation of the worm that the attack originated from North Korea or agencies working for the country. In December 2017, the United States and United Kingdom formally asserted that North Korea

9024-401: Was registered by Check Point threat intelligence analysts. A few days later, a new version of WannaCry was detected that lacked the kill switch altogether. On 19 May, it was reported that hackers were trying to use a Mirai botnet variant to effect a distributed denial-of-service attack on WannaCry's kill-switch domain with the intention of knocking it offline. On 22 May, Hutchins protected

9120-628: Was still using XP, claiming only 4.7% of devices within the organization ran Windows XP. The cost of the attack to the NHS was estimated as £92 million in disruption to services and IT upgrades. After the attack, NHS Digital refused to finance the estimated £1 billion to meet the Cyber Essentials Plus standard, an information security certification organized by the UK NCSC, saying this would not constitute "value for money", and that it had invested over £60 million and planned "to spend

9216-409: Was stolen and leaked by a group called The Shadow Brokers a month prior to the attack. While Microsoft had released patches previously to close the exploit, much of WannaCry's spread was from organizations that had not applied these, or were using older Windows systems that were past their end of life . These patches were imperative to cyber security, but many organizations did not apply them, citing

#895104