fileHow_To_Decrypt_My_Files.txt
notes/How_To_Decrypt_My_Files.txt
Location: EveryFolder
Ransomware Research
Ragnarok Ransomware
Ragnarok is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: RagnarokCry, Ragnarok Doxware.
Quick facts
- Ransomware Family
- Ragnarok
- First Seen
- January 1, 2020
- Known Aliases
- RagnarokCry
- Ragnarok Doxware
How Ragnarok ransomware works
File modification behavior
Ragnarok updates file modification timestamps after encryption.
File encryption patterns
Ragnarok modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .ragnarok
- .rgnk
- .thor
- .hela
- .ragnarok_cry
- .odin
Ransom note and payment demands
After encrypting files, Ragnarok displays ransom notes demanding payment for file recovery:
file!!ReadMe_To_Decrypt_My_Files.txt
notes/!!ReadMe_To_Decrypt_My_Files.txt
file!!Attention_How_To_Recover_My_Files.txt
notes/!!Attention_How_To_Recover_My_Files.txt
Location: EveryFolder
file!!Read_me_How_To_Recover_My_Files.html
file/^!!Read_Me\.[A-F0-9]{5}\.html$/
notes/!!Read_Me.FC30D.html
Location: RootDirectory, UserFolders
Technical indicators
Associated executable files
The following executable files are associated with Ragnarok ransomware:
- asdjasfhdlkfadfhds.exe1
- patch64
- rgnk3.0.exe
- 730DBBFB.exe
About this analysis
This Ragnarok 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 Ragnarok.
Detection coverage
Elastio detects Ragnarok inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Ragnarok 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.