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Trojan.PS1.COBEACON.YXEBV

February 23, 2024
 Analysis by: Jeffrey Francis Bonaobra
 ALIASES:

Trojan.PowerShell.Cobalt.a (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


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:

240,672 bytes

File Type:

PS1

Memory Resident:

No

Initial Samples Received Date:

22 Feb 2024

Payload:

Injects code in processes

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 injects codes into the following process(es):

  • created powershell.exe

Other Details

This Trojan does the following:

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

19.174.07

FIRST VSAPI PATTERN DATE:

22 Feb 2024

VSAPI OPR PATTERN File:

19.175.00

VSAPI OPR PATTERN Date:

23 Feb 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.COBEACON.YXEBV. 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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