Rus-129.7z Apr 2026

: Inside the archive, there is often a double-extension file (e.g., RUS-129_Report.pdf.exe ) or a malicious LNK (shortcut) file. Payload Delivery :

: Consider blocking .7z and .rar attachments from external sources if they are not standard for your business operations. RUS-129.7z

: Look for unusual PowerShell activity or unauthorized cmd.exe spawns originating from common archive software (like WinRAR or 7-Zip). : Inside the archive, there is often a

: Once the user clicks the file, it executes a malicious script (PowerShell or VBScript) or a compiled binary. : Once the user clicks the file, it

: The malware often creates a registry key under HKCU\Software\Microsoft\Windows\CurrentVersion\Run or schedules a task to ensure it survives system reboots.

The contents of RUS-129.7z generally follow a specific infection chain designed to bypass traditional security filters:

: Typically delivered via spear-phishing emails with subjects referencing official Russian military or government documentation to lure targets into opening the attachment. Malware Analysis & Behavior