PolyglotCryptor Ransomware
PolyglotCryptor is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: PyCL, Dxh26wam, Fatboy, Fatboy RaaS.
Quick facts
How PolyglotCryptor ransomware works
File encryption patterns
PolyglotCryptor modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, PolyglotCryptor displays ransom notes demanding payment for file recovery:
notes/read_me.txt
notes/index.html
Technical indicators
Associated executable files
The following executable files are associated with PolyglotCryptor ransomware:
- Dxh26wam.exe
- dxh26wam.bin
- Ransomware.exe
- dxh26wam.exe
- 399tbz21.exe
- B.exe
- cl.exe
- cl.exe.old
- ui.exe
- ui.bin
- ui.exe.old
About this analysis
This PolyglotCryptor ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like PolyglotCryptor.
Last updated: December 30, 2025
Elastio detects PolyglotCryptor inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify PolyglotCryptor across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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