ASN1 Encoder Ransomware
ASN1 Encoder 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.
Quick facts
Ransom note and payment demands
After encrypting files, ASN1 Encoder displays ransom notes demanding payment for file recovery:
notes/!!!!!readme!!!!!.htm
Technical indicators
Associated executable files
The following executable files are associated with ASN1 Encoder ransomware:
- 20.exe
- radCD474.tmp.vir.HSvir
- content
- 1.exe
- 68df8f82.exe
- 4425046
- d6834c5.exe
- MediaInfo_DLL_0.7.90_Windows_i386.exe
About this analysis
This ASN1 Encoder 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 ASN1 Encoder.
Last updated: December 30, 2025
Elastio detects ASN1 Encoder inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify ASN1 Encoder across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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