Rewterz Threat Alert – Mars Stealer – Active IOCs

Severity

Medium

Analysis Summary

Mars is an information stealer that was first spotted in 2021 and advertised as a standalone version on several cybercriminal sites. It primarily targets Windows victim credentials and cryptocurrency wallets, including 2FA plugins and any other vital system information. This malware can steal information from a variety of browsers (passwords, cookies, credit cards, and so on). It can also extract browsing and file download histories, Internet cookies, and stored passwords from various browsers including Google Chrome, Chromium, and Mozilla Firefox. It steals credentials from crypto plugins and crypto-wallets.

Its code is similar to those of other information stealers such as Arkei, Oski, and Vidar. Mars stealer malware has the potential to infect multiple systems, pose serious privacy concerns, and inflict large financial losses. Passwords, banking information, and identity theft are some of the main impacts of this malware.

Impact

• Credential Theft
• Unauthorized Access

Indicators of Compromise

MD5

bbc31b0e9ce22e0c11b30f4e5a036850

SHA-256

be3040720efd4b56baee6d348a63096d90248c13fd67b7e8ed322f404fd2b4a0

SHA-1

87e51be2baafabd8e3b8ad5421b7217801070521

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
• Enable two-factor authentication.
• Ensure that general security policies are employed including: implementing strong passwords, correct configurations, and proper administration security policies.
• Prohibit password sharing
• Do not use the same password for multiple platforms, servers, or networks
• Do not download document ?les attached in emails from unknown sources and strictly refrain from enabling macros when the source isn’t reliable.
• Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets
• Patch and upgrade any platforms and software timely and make it into a standard security policy.