CryptFIle2 Ransomware
CryptFIle2 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick facts
How CryptFIle2 ransomware works
File encryption patterns
CryptFIle2 modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, CryptFIle2 displays ransom notes demanding payment for file recovery:
notes/HELP_DECRYPT_YOUR_FILES.HTML
notes/HELP_DECRYPT_YOUR_FILES.TXT
notes/# HELP_DECRYPT_YOUR_FILES #.TXT
notes/HELP_YOUR_FILES.HTML
notes/HELP_YOUR_FILES.TXT
Technical indicators
Associated executable files
The following executable files are associated with CryptFIle2 ransomware:
- ChromeFlashPlayer_81ba016a5dfcb0db.exe
- Subpoena.exe
- AdobeFlashPlayer_dcf6d65e5dfcb0db.exe
- AdobeFlashPlayer_8428d05f5dfcb0db.exe
- FlashPlayerPlugin_5dfcb0db_d36f4e1e.exe
- FlashPlayerPlugin_ebcf2f2_f8d21cc4.exe
- adb.exe
About this analysis
This CryptFIle2 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 CryptFIle2.
Last updated: December 30, 2025
Elastio detects CryptFIle2 inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify CryptFIle2 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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