Analysis by: Leidryn Saludez
ALIASES:

Gen:Variant.Fragtor.861949 (BITDEFENDER)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It drops files as ransom note. It avoids encrypting files with the following file extensions.

  TECHNICAL DETAILS

File Size: 182,272 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 15 May 2025
Payload: Encrypts files

Arrival Details

This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

This Ransomware accepts the following parameters:

  • -path → local directory encryption within a specific path
  • -all → general encryption protocol
  • -sub → encryption through local network
  • -ldap → network encryption with LDAP access
    • -u → ldap username
    • -p → ldap password

Ransomware Routine

This Ransomware appends the following extension to the file name of the encrypted files:

  • .devman

It drops the following file(s) as ransom note:

  • {Encrypted Directory}\README.global.txt

It avoids encrypting files with the following file extensions:

  • dll
  • bin
  • msi
  • sys
  • global
  • lnk
  • ini
  • Progam Files
  • Program Files (x86)
  • Windows
  • ProgramData
  • AppData

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 20.216.06
FIRST VSAPI PATTERN DATE: 21 May 2025
VSAPI OPR PATTERN File: 20.217.00
VSAPI OPR PATTERN Date: 22 May 2025

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as Ransom.Win32.MADVEN.THEBABE. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

Step 3

Restore encrypted files from backup.


Did this description help? Tell us how we did.