Ransomware Research

3301 Ransomware

3301 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
3301
First Seen
August 1, 2017

How 3301 ransomware works

File modification behavior

3301 updates file modification timestamps after encryption.

File encryption patterns

3301 modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
  • .3301

Ransom note and payment demands

After encrypting files, 3301 displays ransom notes demanding payment for file recovery:

fileDECRYPT_MY_FILES.HTML
notes/DECRYPT_MY_FILES.HTML

Location: EveryFolder

screenshot
notes/wl.bmp

Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with 3301 ransomware:

  • Alone2.exe

About this analysis

This 3301 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 3301.

Last updated: July 31, 2024

Detection coverage

Elastio detects 3301 inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify 3301 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.