Ransomware Research
AllCry Ransomware
AllCry 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.
Quick Facts
- Ransomware Family
- AllCry
- First Seen
- October 1, 2017
How AllCry Ransomware Works
File Encryption Patterns
AllCry modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..allcry
Ransom Note and Payment Demands
After encrypting files, AllCry displays ransom notes demanding payment for file recovery:
ReadMe.dic
Ransom message:
notes/ReadMe.dic
Note locations:
RootDirectory
readme.txt
Ransom message:
notes/readme.txt
Note locations:
Desktop
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletion
Technical Indicators
Associated Executable Files
The following executable files are associated with AllCry ransomware:
allcry_upx.exe
winsrv.exe
winsrv32.exe
Elastio Can Help You
Don't let AllCry ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This AllCry 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 AllCry.
Last updated: July 30, 2025