Wiper (malware)

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In computer security, a wiper is a class of malware intended to erase (wipe, hence the name) the hard drive or other static memory of the computer it infects, maliciously deleting data and programs.

Contents

Examples

A piece of malware referred to as "Wiper" was allegedly used in attacks against Iranian oil companies. In 2012, the International Telecommunication Union supplied Kaspersky Lab with hard drives allegedly damaged by Wiper for analysis. While a sample of the alleged malware could not be found, Kaspersky discovered traces of a separate piece of malware known as Flame. [1] [2] [3]

The Shamoon malware contained a disk wiping mechanism; it was employed in 2012 and 2016 malware attacks targeting Saudi energy companies, and utilized a commercial direct drive access driver known as Rawdisk. The original variant overwrote files with portions of an image of a burning U.S. flag. The 2016 variant was nearly identical, except using an image of the body of Alan Kurdi instead. [4] [5]

A wiping component was used as part of the malware employed by the Lazarus Group—a cybercrime group with alleged ties to North Korea, during the 2013 South Korea cyberattack, and the 2014 Sony Pictures hack. [6] [7] [8] The Sony hack also utilized RawDisk. [4]

In 2017, computers in several countries—most prominently Ukraine, were infected by NotPetya, which is a variant of the Petya ransomware that was a wiper in functional sense. The malware infects the master boot record with a payload that encrypts the internal file table of the NTFS file system. Although it still demanded a ransom, it was found that the code had been significantly modified so that the payload could not actually revert its changes, even if the ransom were successfully paid. [9] [10]

Several variants of wiper malware were discovered during the 2022 Ukraine cyberattacks on computer systems associated with Ukraine. Named CaddyWiper, HermeticWiper, IsaacWiper, and FoxBlade by researchers, the programs showed little relation to each other, prompting speculation that they were created by different state-sponsored actors in Russia especially for this occasion. [11]

Solution

Reactive redundancy is a possible solution for data destruction protection. Researchers are able to create systems capable of analyzing write buffers before they reach a storage medium, determine if the write is destructive, and preserve the data under destruction. [12] Moreover regular backups (as long as stored on an external device) provide the ability to restore lost data.

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Ransomware is a type of malware that encrypts the victim's personal data until a ransom is paid. They commonly use difficult-to-trace digital currencies such as paysafecard or Bitcoin and other cryptocurrencies are used for the ransoms, making tracing and prosecuting the perpetrators difficult. Sometimes the original files can be retrieved without paying the ransom due to implementation mistakes, leaked cryptographic keys or a complete lack of encryption in the ransomware.

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Kaspersky Lab is a Russian multinational cybersecurity and anti-virus provider headquartered in Moscow, Russia, and operated by a holding company in the United Kingdom. It was founded in 1997 by Eugene Kaspersky, Natalya Kaspersky and Alexey De-Monderik. Kaspersky Lab develops and sells antivirus, internet security, password management, endpoint security, and other cybersecurity products and services.

Flame, also known as Flamer, sKyWIper, and Skywiper, is modular computer malware discovered in 2012 that attacks computers running the Microsoft Windows operating system. The program is used for targeted cyber espionage in Middle Eastern countries.

Shamoon, also known as W32.DistTrack, is a modular computer virus that was discovered in 2012, targeting then-recent 32-bit NT kernel versions of Microsoft Windows. The virus was notable due to the destructive nature of the attack and the cost of recovery. Shamoon can spread from an infected machine to other computers on the network. Once a system is infected, the virus continues to compile a list of files from specific locations on the system, upload them to the attacker, and erase them. Finally the virus overwrites the master boot record of the infected computer, making it unusable.

Cyberweapons are commonly defined as malware agents employed for military, paramilitary, or intelligence objectives as part of a cyberattack. This includes computer viruses, trojans, spyware, and worms that can introduce malicious code into existing software, causing a computer to perform actions or processes unintended by its operator.

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Seculert was a cloud-based cyber security technology company based in Petah Tikva, Israel. The company's technology was designed to detect breaches and advanced persistent threats (APTs), attacking networks. Seculert's business was based on malware research and the ability to uncover malware that has gone undetected by other traditional measures.

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The Lazarus Group is a hacker group made up of an unknown number of individuals, alleged to be run by the government of North Korea. While not much is known about the group, researchers have attributed many cyberattacks to them since 2010.

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<span class="mw-page-title-main">WannaCry ransomware attack</span> 2017 worldwide ransomware cyberattack

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 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 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.

EternalBlue is a computer exploit software developed by the U.S. National Security Agency (NSA). It is based on a vulnerability in Microsoft Windows that allowed users to gain access to any number of computers connected to a network. The NSA knew about this vulnerability but did not disclose it to Microsoft for several years, since they planned to use it as a defense mechanism against cyber attacks. In 2017, the NSA discovered that the software was stolen by a group of hackers known as the Shadow Brokers. Microsoft might have been informed of this and released security updates in March 2017 patching the vulnerability. While this was happening, the hacker group attempted to auction off the software, but did not succeed in finding a buyer. EternalBlue was then publicly released on April 14, 2017.

<span class="mw-page-title-main">Petya (malware family)</span> Family of encrypting ransomware discovered in 2016

Petya is a family of encrypting malware that was first discovered in 2016. The malware targets Microsoft Windows–based systems, infecting the master boot record to execute a payload that encrypts a hard drive's file system table and prevents Windows from booting. It subsequently demands that the users make a payment in Bitcoin in order to regain access to the system.

<span class="mw-page-title-main">2017 Ukraine ransomware attacks</span> Series of powerful cyberattacks using the Petya malware

A series of powerful cyberattacks using the Petya malware began on 27 June 2017 that swamped websites of Ukrainian organizations, including banks, ministries, newspapers and electricity firms. Similar infections were reported in France, Germany, Italy, Poland, Russia, United Kingdom, the United States and Australia. ESET estimated on 28 June 2017 that 80% of all infections were in Ukraine, with Germany second hardest hit with about 9%. On 28 June 2017, the Ukrainian government stated that the attack was halted. On 30 June 2017, the Associated Press reported experts agreed that Petya was masquerading as ransomware, while it was actually designed to cause maximum damage, with Ukraine being the main target.

<span class="mw-page-title-main">Sandworm (hacker group)</span> Russian hacker group

Sandworm is an advanced persistent threat operated by Military Unit 74455, a cyberwarfare unit of the GRU, Russia's military intelligence service. Other names for the group, given by cybersecurity researchers, include APT44, Telebots, Voodoo Bear, IRIDIUM, Seashell Blizzard, and Iron Viking.

<span class="mw-page-title-main">2022 Ukraine cyberattacks</span> Attack on Ukrainian government and websites

During the prelude to the Russian invasion of Ukraine and the Russian invasion of Ukraine, multiple cyberattacks against Ukraine were recorded, as well as some attacks on Russia. The first major cyberattack took place on 14 January 2022, and took down more than a dozen of Ukraine's government websites. According to Ukrainian officials, around 70 government websites, including the Ministry of Foreign Affairs, the Cabinet of Ministers, and the National and Defense Council (NSDC), were attacked. Most of the sites were restored within hours of the attack. On 15 February, another cyberattack took down multiple government and bank services.

References

  1. ↑ "Destructive Malware - Five Wipers in the Spotlight". Securelist. Retrieved 2017-07-03.
  2. ↑ Zetter, Kim. "Wiper Malware That Hit Iran Left Possible Clues of Its Origins". Wired.com. Retrieved 2017-07-03.
  3. ↑ Erdbrink, Thomas (23 April 2012). "Facing Cyberattack, Iranian Officials Disconnect Some Oil Terminals From Internet". The New York Times. Archived from the original on 31 May 2012. Retrieved 29 May 2012.
  4. 1 2 "Shamoon wiper malware returns with a vengeance". Ars Technica. Retrieved 2017-07-03.
  5. ↑ Perlroth, Nicole (2012-08-24). "Among Digital Crumbs from Saudi Aramco Cyberattack, Image of Burning U.S. Flag". Bits. The New York Times. Retrieved 2017-07-03.
  6. ↑ "Inside the "wiper" malware that brought Sony Pictures to its knees [Update]". Ars Technica. Retrieved 2017-07-03.
  7. ↑ Palilery, Jose (December 24, 2014). "What caused Sony hack: What we know now". CNNMoney . Retrieved January 4, 2015.
  8. ↑ Zetter, Kim. "The Sony Hackers Were Causing Mayhem Years Before They Hit the Company". Wired. Retrieved 2017-07-03.
  9. ↑ "Tuesday's massive ransomware outbreak was, in fact, something much worse". Ars Technica. 28 June 2017. Retrieved 2017-06-28.
  10. ↑ "Cyber-attack was about data and not money, say experts". BBC News. 29 June 2017. Retrieved 29 June 2017.
  11. ↑ "Sicherheitsforscher finden neue Zerstörungs-Malware auf ukrainischen Computersystemen". standard.at. Retrieved 2022-03-15.
  12. ↑ Gutierrez, Christopher N.; Spafford, Eugene H.; Bagchi, Saurabh; Yurek, Thomas (2018-05-01). "Reactive redundancy for data destruction protection (R2D2)". Computers & Security. 74: 184–201. doi: 10.1016/j.cose.2017.12.012 . ISSN   0167-4048.
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