Analysis by: Jemimah Mae Molina
 PLATFORM:

Unix

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Canal de infección Downloaded from the Internet

This new Mirai variant exploits CVE-2020-10173, a vulnerability in Comtrend VR-3033 routers. Similar to earlier variants, this Mirai variant uses telnet and SSH brute-forcing techniques to attack vulnerable devices.

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.

  TECHNICAL DETAILS

Tamaño del archivo 41,856 bytes
Tipo de archivo ELF
Compresión de archivo UPX
Residente en memoria Yes
Fecha de recepción de las muestras iniciales 02 Jul 2020
Carga útil Connects to URLs/IPs, Exploits vulnerabilities

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 URL(s) to send and receive commands from a remote malicious user:

  • methcnc.{BLOCKED}s.org
  • methscan.{BLOCKED}s.org

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:

      SOLUTION

    Motor de exploración mínimo 9.850
    Primer archivo de patrones de VSAPI 15.968.02
    Primera fecha de publicación de patrones de VSAPI 03 Jul 2020
    Versión de patrones OPR de VSAPI 15.969.00
    Fecha de publicación de patrones OPR de VSAPI 04 Jul 2020

    Scan your computer with your Trend Micro product to delete files detected as IoT.Linux.MIRAI.VWISI. 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:


    Did this description help? Tell us how we did.