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Ransomware Research
HildaCrypt Ransomware
HildaCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- HildaCrypt
- First Seen
- August 1, 2019
How HildaCrypt Ransomware Works
Targeted Files
https://app.any.run/tasks/4f996f93-a636-401b-8a9b-4d816848e4e1#
File Encryption Patterns
HildaCrypt modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..HILDA!
..HCY!
..liluzivert
Ransom Note and Payment Demands
After encrypting files, HildaCrypt displays ransom notes demanding payment for file recovery:
READ_IT.TXT
Ransom message:
notes/READ_IT.TXT
Note locations:
EveryFolder
HILDACRYPTReadMe.html
Ransom message:
notes/HILDACRYPTReadMe.html
Note locations:
EveryFolder
YOUR_FILES_ARE_ENCRYPTED.TXT
Ransom message:
notes/YOUR_FILES_ARE_ENCRYPTED.TXT
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with HildaCrypt ransomware:
Encryptor.exe
important company update september 2019.pdf.exe
kjkjfkj3khhhkf.exe
svchost32.exe
xamp-install.exe
Elastio Can Help You
Don't let HildaCrypt ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This HildaCrypt 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 HildaCrypt.
Last updated: July 30, 2025