PERL_SHELLBOT.D

October 02, 2014
 ALIASES:

Perl/Shellbot (McAfee)

 PLATFORM:

Linux, Unix

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet

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 joins an Internet Relay Chat (IRC) channel.

  TECHNICAL DETAILS

File Size:

6,699 bytes

File Type:

Script

Initial Samples Received Date:

01 Oct 2014

Payload:

Compromises system security, 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.

Backdoor Routine

This backdoor joins any of the following IRC channel(s):

  • irc.{BLOCKED}-newbie.org:6667

It joins any of the following Internet Relay Chat (IRC) channels:

  • #xrt

It accesses a remote Internet Relay Chat (IRC) server where it receives the following commands from a remote malicious user:

  • ctcp - Send IRC private messages to a target
  • msg - Send a private message
  • op - Grant a user an operator status
  • deop - Revoke a users operator status
  • join - Join a channel
  • nick - Change nickname
  • part - Leave a channel

  SOLUTION

Minimum Scan Engine:

9.700

Scan your computer with your Trend Micro product to delete files detected as PERL_SHELLBOT.D. 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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