Ransomware Research
Diavol Ransomware
Diavol is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: LockMainDIB.
Quick Facts
- Ransomware Family
- Diavol
- First Seen
- June 1, 2021
- Known Aliases
- LockMainDIB
How Diavol Ransomware Works
Targeted Files
85ec7f5ec91adf7c104c7e116511ac5e7945bcf4a8fdecdcc581e97d8525c5ac - not found on VT services d3563a5c4b785a0e7992eac27d23379bff0afb01ba7bf98bc6ea332b441a028a - CryptoLocker32.exe (x86) ee13d59ae3601c948bd10560188447e6faaeef5336dcd605b52ee558ff2a8588 - CryptoLocker.exe (x64)
File Encryption Patterns
Diavol modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lock64..PSFUXRansom Note and Payment Demands
After encrypting files, Diavol displays ransom notes demanding payment for file recovery:
readme.txtRansom message:
notes/readme.txt
Note locations:
EveryFolderREADME_FOR_DECRYPT.txtRansom message:
notes/README_FOR_DECRYPT.txt
Note locations:
EveryFolderWARNING.TXTTechnical Indicators
Associated Executable Files
The following executable files are associated with Diavol ransomware:
CryptoLocker64.dllLocker.dllCryptoLocker32.exeCryptoLocker.exe
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About This Analysis
This Diavol ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like Diavol.
Last updated: July 30, 2025