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

`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.  
  
E.g.   
  
Test.exe.docx  
Test.exe.pdf  
  
Tested successfully in a virtual machine environment.  
  
  
PoC Video:  
https://www.youtube.com/watch?v=xyBt9Ppb-xc  
  
Exploit/PoC:  
Create files with ".exe" within the filename.  
  
  
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