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Severity
High
Analysis Summary
Remcos malware has been operating since 2016. This RAT was originally promoted as genuine software for remote control of Microsoft Windows from XP onwards, and is frequently found in phishing attempts due to its capacity to completely infect an afflicted machine. Remcos malware attacks Windows systems and provides the attacker complete control over the machine.It is frequently distributed by malicious documents or archive files that contain scripts or executables. Remcos, like other RATs, offers the threat actor complete access over the infected PCs which allow them to record keystrokes, passwords, and other critical information. Remcos incorporates various obfuscation and anti-debugging techniques to evade detection. Regular updates of its features by its creators make this malware a challenging adversary.
Impact
- Breach of: Victim’s machine information (OS version, computer name, system type, product name, primary adapter).
- User information (user access, user profile, user name, user domain)
- Processor information (processor revision number, processor level, processor identifier, processor architecture)
Indicators of Compromise
MD5
- 649be07e6ebc074f1846cee6c1899e5d
- 478d932d2e6fc156240690b8420cf5e7
- f817d59efeb4f90425d13ac5ceb435e1
SHA-256
- 2581b3d109354c12192a5a273710270e403e906f9b5c996526a1801bd7bbd29b
- 05611f05c845add065587a3fb2fcac4d6b54271ff2d4c0e257e5445ec6d6bc61
- 7e563602480b39de3e0587cbd8ea14802bf002b2603cd9033fc9568465ece030
SHA-1
- 733610b708ee18d2f822384725fa8def663a5caf
- 2c94cbf321e2c1ff297c634510d927b8c7e68e22
- bd7b2f13f2eac696f27897d9db0d3aaaa0706b34
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.