Ransomware Research
Explorer Ransomware
Explorer is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Explorer V1.58.
Quick Facts
- Ransomware Family
- Explorer
- First Seen
- July 1, 2017
- Known Aliases
- Explorer V1.58
How Explorer Ransomware Works
Targeted Files
Requieres C&C to send encryption key
File Encryption Patterns
Explorer modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..explorerRansom Note and Payment Demands
After encrypting files, Explorer displays ransom notes demanding payment for file recovery:
READ_IT.txtRansom message:
notes/READ_IT.txt
Note locations:
DesktopRansom message:
notes/wallpaper.bmp
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Explorer ransomware:
explerer.exe
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About This Analysis
This Explorer 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 Explorer.
Last updated: July 30, 2025