Rewterz Threat Alert – STRRAT Malware – Active IOCs

Severity

High

Analysis Summary

STRRat is a Java-based Remote-Access Trojan (RAT) with a slew of malicious features, notably information theft and backdoor capabilities. This RAT was first identified at the German cybersecurity firm in June 2020. This malware uses plugins to grant the attacker remote access. STTRat steals login credentials from browsers and email clients, logs keystrokes, and exploits vulnerable Windows operating systems remotely. The malware adds the file extension (.crimson) to Notepad to show a bogus ransom message. STRRAT malware supports the browsers Firefox, Chrome, Foxmail, Outlook, Internet Explorer, and Thunderbird.

It permits threat actors to remotely control compromised machines/computers. According to research, this RAT can be used to run commands that let users upload files, download files, delete files, open files, restart computers, and carry out a variety of other tasks.

Furthermore, users who have the STRRAT installed on their computers run the risk of experiencing issues with online privacy, surfing security, financial loss, identity theft, account lockout, system infection with further infections, etc.

Impact

• Unauthorized access
• Information theft
• Exposure of sensitive data

Indicators of Compromise

MD5

• 1770e031366e2d91415fa1a1d902814a
• 55ceae2a86b4f6a68f2ad1f755406298
• a11eaab0a2de9d79390793ea19206742

SHA-256

• bdb39f75a5b8e2cc95b68a96e5bcf4660449dfb1523a8d00dbf9444206acae02
• f8a0b74e3cc85640536fe22899f029661020895fa31aa28eb1b05ad623ae83e5
• 5385dc6d3d9c0f9c36015eb2bc2274ee2aa3dd285dfa1c8abdb362a84723d8f4

SHA-1

• ef37063f282a2e6d70c9800b20dc45889c3fa90c
• 69c43ad9d1ca37cba17273c849f434d69ad7f326
• fdb795658c88ff83cd7da08800577472840d55b1

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
• Patch and upgrade any platforms and software timely and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.
•  Along with network and system hardening, code hardening should be implemented within the organization so that their websites and software are secure. Use testing tools to detect any vulnerabilities in the deployed codes.
• Enable two-factor authentication.