Backdoor.Linux.MIRAI.AT

January 05, 2019
 Analysis by: John Donnie Celestre
 ALIASES:

Linux/Mirai.bonb (ANTIVIR); Backdoor:Linux/Mirai!rfn (MICROSOFT)

 PLATFORM:

Linux

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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 deletes itself after execution.

  TECHNICAL DETAILS

File Size:

70,736 bytes

File Type:

ELF

Initial Samples Received Date:

21 Dec 2019

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.

Other Details

This Backdoor connects to the following URL(s) to check for an Internet connection:

  • 8.8.8.8

It connects to the following possibly malicious URL:

  • 5.{BLOCKED}.{BLOCKED}.203
  • 37.{BLOCKED}.{BLOCKED}.248
  • m.peanut{BLOCKED}.ru

It deletes itself after execution.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.702.06

FIRST VSAPI PATTERN DATE:

21 Dec 2019

VSAPI OPR PATTERN File:

14.703.00

VSAPI OPR PATTERN Date:

22 Dec 2019

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