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July 2, 2022Severity
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
- 3d88a2651713a9cf1b8eca4a6a3783fe
SHA-256
- 9206b388a929bd13c0ffc386a60c30f7a8503319cd250de912491b19d87dc35e
SHA-1
- 06c76d8ca008d559e5f4efbe7fc93b1a59c7b5f0
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.