Rewterz Threat Advisory – New Vulnerabilities Added to the Exploited-in-the-wild Category
December 3, 2021Rewterz Threat Alert – SNAKE Ransomware – Active IOCs
December 3, 2021Rewterz Threat Advisory – New Vulnerabilities Added to the Exploited-in-the-wild Category
December 3, 2021Rewterz Threat Alert – SNAKE Ransomware – Active IOCs
December 3, 2021Severity
High
Analysis Summary
Remcos Remote Control and Surveillance, marketed as a legitimate software by a Germany-based firm Breaking Security for remotely managing Windows systems is now widely used in multiple malicious campaigns by threat actors. Remcos RAT is a sophisticated remote access Trojan (RAT) that can be used to fully control and monitor any Windows computer from XP and onwards. The current campaign utilizes social engineering techniques wherein threat actors are leveraging what’s new and trending worldwide. The phishing email contains a PDF offering CoronaVirus safety measures but in reality, this PDF includes an executable for a REMCOS RAT dropper that runs together with a VBS file executing the malware. The malware also adds the Startup registry key at “HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce” for it to become persistent while the device affected has been restarted.
This Backdoor gathers the following information and sends it to its servers:
- Computer 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),
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
- e1aa1089780c61f5797ef7f45b98c547
- a6d5cd1e1ff086014a001bbed0d94c42
SHA-256
- e7f0e6442fd224d79363d18935d897deeb70d8c17e8537724ef4251a4f843037
- 68bcb49a4f5f2491ef6606a57d1713362478e18edc2197c5daeaf1e887533999
SHA-1
- f12b4b87d29313734789b362e10f70a905d105a5
- bcd4ca105885e8c636603002108ec7988b08e406
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.