Ransomware Research
PClock Ransomware
PClock is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: PClock2.
Quick Facts
- Ransomware Family
- PClock
- First Seen
- May 1, 2016
- Known Aliases
- PClock2
How PClock Ransomware Works
Targeted Files
NOSAMPLE
Ransom Note and Payment Demands
After encrypting files, PClock displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
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About This Analysis
This PClock 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 PClock.
Last updated: July 30, 2025