Analysis by: Mc Justine De Guzman
ALIASES:

Trojan:Linux/Vermilionstrike.A!MTB (MICROSOFT)

 PLATFORM:

Linux

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

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.

It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.

  TECHNICAL DETAILS

File Size: 89,416 bytes
File Type: ELF
Memory Resident: No
Initial Samples Received Date: 15 Sep 2021

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.

Backdoor Routine

This Trojan executes the following commands from a remote malicious user:

  • Arbitrary code execution

It connects to the following websites to send and receive information:

  • {BLOCKED}.{BLOCKED}.163.100
  • update.{BLOCKED}ofthk.com
  • update.{BLOCKED}oftkernel.com

Information Theft

This Trojan gathers the following data:

  • Kernel Version
  • Network interface
  • Hostname

Other Details

This Trojan does the following:

  • It runs itself as a daemon

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 16.968.05
FIRST VSAPI PATTERN DATE: 15 Sep 2021
VSAPI OPR PATTERN File: 16.969.00
VSAPI OPR PATTERN Date: 16 Sep 2021

Scan your computer with your Trend Micro product to delete files detected as Trojan.Linux.VERMILLIONSTRIKE.A. 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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