Ransomware Research
Zipper Ransomware
Zipper is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: FileCompressor.
Quick Facts
- Ransomware Family
- Zipper
- First Seen
- October 1, 2017
- Known Aliases
- FileCompressor
How Zipper Ransomware Works
Targeted Files
NOSAMPLE https://www.bleepingcomputer.com/forums/t/679320/zipper-ransomware-help/
File Encryption Patterns
Zipper modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..zipRansom Note and Payment Demands
After encrypting files, Zipper displays ransom notes demanding payment for file recovery:
Unzip your ZIP files.txtRansom message:
notes/Unzip your ZIP files.txt
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About This Analysis
This Zipper 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 Zipper.
Last updated: July 30, 2025