Analysis by: Christopher Daniel So
 ALIASES:

Backdoor.Trojan (Symantec)

 PLATFORM:

Linux, UNIX, Mac OS X

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: No

  • 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.

  TECHNICAL DETAILS

Tipo de compactação: 2,218 bytes
Tipo de arquivo: Script
Residente na memória: Yes
Data de recebimento das amostras iniciais: 30 Sep 2014
Carga útil: Connects to URLs/IPs

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.

NOTES:

It connects to {BLOCKED}2.{BLOCKED}7.37.182:23 and starts a remote shell (/bin/bash).

  SOLUTION

Mecanismo de varredura mínima: 9.700

Restart in normal mode and scan your computer with your Trend Micro product for files detected as PERL_SHELLDOOR.B. 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 this Knowledge Base page for more information.


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