Inside the archive, there is typically an executable or a script (e.g., .vbs , .js , or a heavily obfuscated .exe ) designed to: Establish Persistence by modifying registry keys.

Connect to a server to download further instructions [5]. Technical Breakdown Typical Finding File Type RAR Archive (Roshal Archive) Common Size Small (often < 2MB) to appear inconspicuous Threat Category Trojan / Info-Stealer MITRE ATT&CK T1566 (Phishing), T1059 (Command and Scripting Interpreter) Recommended Actions Do Not Extract: Do not open the archive on a host machine.

Exfiltrate browser data, saved passwords, and cryptocurrency wallet info [1, 4].

Upload the file to Any.Run or VirusTotal to see the process tree and network callbacks without risking your system [3, 4].

The .rar format is used to bypass basic email filters that only scan for executable extensions like .exe or .bat [4].