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Trojan.PS1.MULIAKA.AB

April 17, 2024
 Analysis by: Leidryn Saludez
 ALIASES:

DoS:Win32/Derusht!dha (MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet


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

  TECHNICAL DETAILS

File Size:

3,018 bytes

File Type:

PS1

Memory Resident:

No

Initial Samples Received Date:

11 Apr 2024

Arrival Details

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

Installation

This Trojan adds the following processes:

  • "%System%\wbadmin.exe" stop job

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Process Termination

This Trojan terminates the following services if found on the affected system:

  • Oracle
  • 1C
  • SSASTELEMETRY
  • SQL
  • Citrix
  • Malwarebytes
  • Exchange
  • Veeam
  • Sharepoint
  • Quest
  • Backup

Other Details

This Trojan does the following:

  • It deletes system restore points.
  • It deletes all shadow copies on the system.
  • It forcefully turns off all running virtual machines.
  • It disables all network adapters on the system without asking for confirmation.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

19.284.04

FIRST VSAPI PATTERN DATE:

17 Apr 2024

VSAPI OPR PATTERN File:

19.285.00

VSAPI OPR PATTERN Date:

18 Apr 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

Scan your computer with your Trend Micro product to delete files detected as Trojan.PS1.MULIAKA.AB. 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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