Ransomware Research

Jemd Ransomware

Jemd is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2018, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Jemd
First Seen
December 1, 2018

How Jemd ransomware works

File modification behavior

Jemd updates file modification timestamps after encryption.

File encryption patterns

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

Extensions added after encryption
  • ./\.[A-Za-z]{5}$/

Ransom note and payment demands

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

fileRecovery.TXT
notes/Recovery.TXT

Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Jemd ransomware:

  • Jemd.exe
  • Project2(3).exe
  • Project2.exe
  • Project.exe
  • Jemd2.exe
  • Project2(2).exe

About this analysis

This Jemd 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 Jemd.

Last updated: January 26, 2023

Detection coverage

Elastio detects Jemd inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Jemd 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.