Down the Rabbit Hole: Botnet Analysis for Non-Reverse Engineers
Summary: Cisco Talos analyzed activity from the Fareit trojan, an information stealer and malware downloader that in this campaign mainly targeted Firefox and other credentials, with analysis done mainly in July 2015. Talos found 2,455 samples communicating to 89.144.2.115, only 23 of which shared the same hash, and observed that adversaries reused similar filenames and URL structures while keeping hashes unique to evade hash- and signature-based detection.
Key Takeaway: Most samples carried VirusTotal detection scores around 4 out of 56, and some files had never been submitted to VirusTotal at all, so hash-based correlation and signature tooling would have missed nearly all of this infrastructure.
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- Topics
- Malware
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