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A ressurreição de Shamoon Wiper Malware

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A próxima brilhante férias de inverno para trás não só novas ameaças cibernéticas, mas também peças de malware velhos. Isso é exatamente o caso com Shamoon malwares que tem, aparentemente, voltou à cena de malware após um período de férias quatro anos. Reports from security companies Symantec and Palo Alto reveal details about its resurrection.


Shamoon Targets Saudi Companies Once Again

Shamoon, a.k.a. Disstrack was initially detected about four years ago in attacks against Saudi Oil Company Aramco. Its intention was to wipe thousands of computers.

Este torno do tempo, the malware is targeting another Saudi organization, which hasn’t been revealed yet. And its agenda is not just wiping companies’ machines but also overwriting their Master Boot Records with the image of Aylan Kurdi’s corpse. The attack took place on November 17 which is a Muslim holiday. The attackers most likely chose that date to bypass security measures.

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Pelo visto, Shamoon had a list of hardcoded logins, which allowed the malware to perform its malicious activities quicker. This also means that the targeted company had already been breached. De acordo com Palo Alto, the attackers could be the same ones from Shamoon’s initial campaigns four years ago.

“The current attack campaign has several TTP overlaps with the original Shamoon campaign, especially from a targeting and timing perspective.”

“Disttrack malware used in the recent attacks is very similar to the variant used in the 2012 ataques, which uses the exact same RawDisk device driver as well.”


Shamoon/ Disttrack Malware Technical Overview

Palo Alto explains that the malware is comprised of three distinct parts:

  • Conta-gotas;
  • Comunicações;
  • Wiper components.

relacionado: Os usuários privilegiados são os mais arriscados em uma Organização, Pesquisa de Segurança diz

The main executable is a dropper deployed to extract additional tools from embedded resources. It’s also used to coordinate when to save and execute them.

Embedded within each Disttrack sample is a component responsible for communicating with a C2 server and a separate component used to carry out the wiping functionality.

The malware’s main purpose is data destruction, thus attempting to damage as many systems as possible. That’s why it tries to spread to other systems on the network via stolen admin credentials. As pointed out by the researchers, this is a tactic quite similar to the one deployed in the 2012 ataques.

Disttrack/ Shamoon is also capable of downloading and executing additional apps to targeted systems, and remotely setting the date to start wiping systems.


Why Are Attackers Using Wiper Malware?

The purpose of this type of malware is, obviamente, not financial gain. These types of attacks are mainly deployed to cause chaos in an organization, and could be linked to hacktivist groups or politically-engaged attackers. They could also be used to destroy evidence or cover tracks of data exfiltration.

Milena Dimitrova

Milena Dimitrova

Um escritor inspirado e gerenciador de conteúdo que foi com SensorsTechForum desde o início. Focada na privacidade do usuário e desenvolvimento de malware, ela acredita fortemente em um mundo onde a segurança cibernética desempenha um papel central. Se o senso comum não faz sentido, ela vai estar lá para tomar notas. Essas notas podem mais tarde se transformar em artigos! Siga Milena @Milenyim

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