Ransomware Research
PureLocker Ransomware
PureLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- PureLocker
- First Seen
- September 1, 2019
How PureLocker Ransomware Works
Targeted Files
https://www.intezer.com/blog/malware-analysis/purelocker-ransomware-being-used-in-targeted-attacks-against-servers/ Current samples are DLL's with a lot of anti-analysis tricks and checks
File Encryption Patterns
PureLocker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..CR1Ransom Note and Payment Demands
After encrypting files, PureLocker displays ransom notes demanding payment for file recovery:
YOUR_FILES.txtRansom message:
notes/YOUR_FILES.txt
Technical Indicators
Associated Executable Files
The following executable files are associated with PureLocker ransomware:
cryptoppcryptopp.dllcryptopp_w2.dll
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About This Analysis
This PureLocker 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 PureLocker.
Last updated: July 30, 2025