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Backdoor.Linux.MIRAI.VWISG

July 03, 2020
 Analysis by: Joshua John Bantayan
 ALIASES:

Trojan.Linux.Mirai (IKARUS); ELF:Mirai-ASD [Trj] (AVAST)

 PLATFORM:

Windows

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


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

It connects to a website to send and receive information.

It deletes itself after execution.

  TECHNICAL DETAILS

File Size:

56,632 bytes

File Type:

ELF

Initial Samples Received Date:

25 Mar 2020

Payload:

Connects to URLs/IPs, Launches DoS/DDoS attacks, Terminates processes, Exploits vulnerability

Arrival Details

This Backdoor 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 Backdoor connects to the following websites to send and receive information:

  • attack.{BLOCKED}s.me

Denial of Service (DoS) Attack

This Backdoor is capable of performing various network denial-of-service (DoS) attacks:

    Other Details

    This Backdoor does the following:

    It deletes itself after execution.

      SOLUTION

    Minimum Scan Engine:

    9.850

    FIRST VSAPI PATTERN FILE:

    15.764.04

    FIRST VSAPI PATTERN DATE:

    25 Mar 2020

    VSAPI OPR PATTERN File:

    15.765.00

    VSAPI OPR PATTERN Date:

    26 Mar 2020

    Scan your computer with your Trend Micro product to delete files detected as Backdoor.Linux.MIRAI.VWISG. 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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