Ransomware Research
BiggyLocker Ransomware
BiggyLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- BiggyLocker
- First Seen
- July 1, 2021
How BiggyLocker Ransomware Works
File Encryption Patterns
BiggyLocker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..$big$Ransom Note and Payment Demands
After encrypting files, BiggyLocker displays ransom notes demanding payment for file recovery:
read_me.txtRansom message:
notes/read_me.txt
Note locations:
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About This Analysis
This BiggyLocker 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 BiggyLocker.
Last updated: October 30, 2025
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