Ransomware Research
EncodeBat Ransomware
EncodeBat is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Encode.bat.
Quick Facts
- Ransomware Family
- EncodeBat
- First Seen
- June 1, 2021
- Known Aliases
- Encode.bat
How EncodeBat Ransomware Works
Targeted Files
encrypts its own notes -> ALL-YOUR-FILES-ARE-ENCRYPTED.txt.encrypted Replaces content with some certificate;doesn’t crypt D drive Encrypts only user folders
File Encryption Patterns
EncodeBat modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..encryptedRansom Note and Payment Demands
After encrypting files, EncodeBat displays ransom notes demanding payment for file recovery:
ALL-YOUR-FILES-ARE-ENCRYPTED.txtRansom message:
notes/ALL-YOUR-FILES-ARE-ENCRYPTED.txt
Note locations:
UserFoldersTechnical Indicators
Associated Executable Files
The following executable files are associated with EncodeBat ransomware:
WextractWEXTRACT.EXE .MUIEncode.exe
Elastio Can Help You
Don't let EncodeBat ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This EncodeBat 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 EncodeBat.
Last updated: July 30, 2025