There are some torrrents showing up with .lnkextension (ex: movie.mp3.lnk, tvshow.mkv.lnk…) and automated software (Sonarr, Radarr, Lidarr, qBittorrent RSS Downloader) could pick those torrents (but not import).
These (fake) torrents include a .lnk file that executes a script on your Windows
HOW TO exclude from download on qBittorrent.
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Go to Options -> Downloads
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Enable “Exclude file names”
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Add patterns:
(one by line)
*.mp4.lnk
*.mp3.lnk
*.mkv.lnk
*.torrent.lnk
Or exclude all together: *.lnk
Example on VirusTotal https://www.virustotal.com/gui/file/e74f64df6ebaf3a1b6e3f42591eb6e87d2ac2828eb5a99fd8d3d82c140137fc9/detection
Yet another reminder that piracy on Linux is the way because new files don’t have execute permissions by default
On many distros will open with WINE by default, not a big deal, you can just delete
~/.wine. If it does anything
For those interested, John Hammond did a video a few months ago about
.lnkextension (and other 16 hidden extensions on Windows).He doesn’t go to much or to deep into the subject, but you get a general view how this could be exploitable.
that executes a script on your Windows.
I don’t have a Windows.
How is the link file executing malware? Can you put any shell script as the target?
You can put the script itself as the link. Shortcut to: powershell -command “Write-Host ‘Gonna pwn your shit’”
Could you just add *.lnk?
That’s mentioned near the bottom of the post.
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Ah yes you’re right
Nice one OP. Just had sonar pick up one of these today named like a proper release of a trusted group. Sonarr didn’t move it from qbit but better to not DL it in the first place even though its a linux box
Is that the malware that is undetectable because it runs purely in memory? The name is escaping me
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