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Rewterz Threat Alert – Quasar RAT – Active IOCs

Severity

Medium

Analysis Summary

Quasar virus is a Remote Access Trojan (RAT) that is often abused by cybercriminals to take remote control over users’ computers for malicious purposes. Exploiting a path traversal vulnerability of WinRAR, a Molerats spear-phishing campaign is discovered. It is suspected that a Gaza Cybergang group is behind the campaign. In the first step, the victim installs a downloader in their operating system which then gets infected with a RAT (Quasar). The downloader typically first tries to connect to a geolocation domain and then the RAT is downloaded.

Impact

  • Data Theft
  • Exposure of Sensitive Data

Indicators of Compromise

MD5

  • af7a336ac7fca059f6aa875a8da74609
  • d35bddd3a36c7f33e086db7464c817a4
  • 811f46696830ead7b26c5f23b4416939
  • a19c4fe9057d41d1a0cf322c84c9a7a3

SHA-256

  • b57f1bcbc72248c3adbdd951d4fb5ef727d79aa36e477d2ac52a1169119e0c28
  • a4496847096f3b16c8cc2e743e48dabb687480f096384605f8601aa23dd05a8e
  • 52d14c318dd0d66fcba72250ee462f8c633fb9f5c44fd2a21368a1016ae41966
  • 19be50c734dd5fa458b14f7b63c503c6d5d187f88472940458d7108ee62eae38

SHA1

  • 7a624b037a6527310ed6b2420b604183a953fe3d
  • 9e05674466f0935a5b17031a2278f64809878033
  • 49709a2a5f49f94c11669a5ca74bfbc4707408f3
  • 40e07768bd6820cff595d19ffdbefba56fb9ce86

Remediation

  • Block all threat indicators at their respective controls.
  • Search for IOCs in your environment.