Ransom.Win64.AtomSilo MVID-2022-0666 Cryptography Logic Flaw

Ransom.Win64.AtomSilo malware suffers from a cryptography logic flaw.

SHA-256 | 3f34b49de4ec6bce1e97067f5337c3513d5b66c17f2c5706a17f5ee88759871f

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/5559e9f5e1645f8554ea020a29a5a3ee.txt
Contact: [email protected]
Media: twitter.com/malvuln
Backup media: infosec.exchange/@malvuln

Threat: Ransom.Win64.AtomSilo
Vulnerability: Crypto Logic Flaw
Family: AtomSilo
Type: PE64
MD5: 5559e9f5e1645f8554ea020a29a5a3ee
Vuln ID: MVID-2022-0666
Disclosure: 12/14/2022
Description: AtomSilo ransomware FAILS to encrypt non PE files that have a ".exe" in the filename. Creating specially crafted file names successfully evaded encryption for this malware sample.



Tested successfully in a virtual machine environment.

PoC Video:

Create files with ".exe" within the filename.

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