file/^[A-F0-9]{6}-DECRYPT\.txt$/
notes/4312A8-DECRYPT.txt
Location: EveryFolder
Ransomware Research
ShadowCryptor Ransomware
ShadowCryptor is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Shadow Cryptor.
Quick facts
- Ransomware Family
- ShadowCryptor
- First Seen
- November 1, 2016
- Known Aliases
- Shadow Cryptor
How ShadowCryptor ransomware works
File modification behavior
ShadowCryptor updates file modification timestamps after encryption.
File encryption patterns
ShadowCryptor modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- ./\.[A-F0-9]{6}$/
- .!palang
- .!shadow
- .!Charlie
Ransom note and payment demands
After encrypting files, ShadowCryptor displays ransom notes demanding payment for file recovery:
file!ENCRYPTED-README.hta
file!README!.txt
notes/!README!.txt
Location: EveryFolder
file!README!.hta
notes/!README!.hta
Location: EveryFolder
Technical indicators
Associated executable files
The following executable files are associated with ShadowCryptor ransomware:
- update.dll-201611301446.dll.exe
- E.exe
About this analysis
This ShadowCryptor 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 ShadowCryptor.
Detection coverage
Elastio detects ShadowCryptor inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify ShadowCryptor across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.