Archives like "LinkUserPassExtractor.rar" are frequently weaponized using known vulnerabilities in WinRAR to achieve silent execution:
: Upon extraction, a hidden malicious file is placed in C:\Users\[User]\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup .
Recent campaigns have used specially crafted RAR files to bypass the user's intended extraction folder. If extracted with a vulnerable version of WinRAR (7.12 or earlier), the archive can silently write malicious files—such as .bat , .lnk , or .exe files—directly into the Windows Startup directory or %TEMP% folders.
If this archive follows patterns observed in 2025-2026 campaigns:
Attackers often hide malicious payloads within NTFS Alternate Data Streams inside the archive. These files are invisible in the standard WinRAR user interface, leading users to believe the archive is empty or contains only benign decoy documents.
