Ransomware Research
ZipLocker Ransomware
ZipLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: ZipLocker.
Quick Facts
- Ransomware Family
- ZipLocker
- First Seen
- May 1, 2017
- Known Aliases
- ZipLocker
How ZipLocker Ransomware Works
Targeted Files
Requires Ionic.Zip.dll Packs files to encrypted archives
File Encryption Patterns
ZipLocker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
. locked.zipRansom Note and Payment Demands
After encrypting files, ZipLocker displays ransom notes demanding payment for file recovery:
UnlockMe.txtRansom message:
notes/UnlockMe.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with ZipLocker ransomware:
Build.exevir_encoder.exe
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About This Analysis
This ZipLocker 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 ZipLocker.
Last updated: July 30, 2025