Analysis by: John Rainier Navato
ALIASES:

Trojan.GenericKD.74181464 (BITDEFENDER)

 PLATFORM:

Windows

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

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted: No

  • 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.

  TECHNICAL DETAILS

File Size: 11,264 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 20 Sep 2024
Payload: Displays console

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 does the following:

  • It drops its ransom note in the following drives and its subdirectories:
    • L:\
    • O:\
    • S:\
    • T:\
    • V:\
    • W:\
  • It avoids dropping its ransom note in the following folders:
    • $recycle.bin
    • $windows.~bt
    • $windows.~ws
    • appdata
    • documents and settings
    • intel
    • mozilla
    • PerfLogs
    • perflogs
    • program files
    • program files (x86)
    • programdata
    • system volume information
    • windows
    • windows.old
    • windows.old.old
  • It displays the following on its console:
  • It does not encrypt files.

Ransomware Routine

This Ransomware drops the following file(s) as ransom note:

  • {Traversed Path}\.READ ME.{Random Number from 1111 to 9999}.txt

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 19.602.04
FIRST VSAPI PATTERN DATE: 20 Sep 2024
VSAPI OPR PATTERN File: 19.603.00
VSAPI OPR PATTERN Date: 21 Sep 2024

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • {Traversed Path}\.READ ME.{Random Number from 1111 to 9999}.txt

Step 4

Scan your computer with your Trend Micro product to delete files detected as Ransom.MSIL.MADLIBERATOR.THIBOBD. 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:


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