Ransomware Research
CryDroid Ransomware
CryDroid is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: CryCryptor.
Quick Facts
- Ransomware Family
- CryDroid
- First Seen
- June 1, 2020
- Known Aliases
- CryCryptor
How CryDroid Ransomware Works
Targeted Files
For Android
File Encryption Patterns
CryDroid modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..encRansom Note and Payment Demands
After encrypting files, CryDroid displays ransom notes demanding payment for file recovery:
readme_now.txtRansom message:
notes/readme_now.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with CryDroid ransomware:
crydroid.apkapp.apkRansomwareCryDroid.apktracershield.apkcovid19tracer.apk
Elastio Can Help You
Don't let CryDroid ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This CryDroid 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 CryDroid.
Last updated: July 30, 2025