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PERL_SHELLBOT.BO

September 29, 2014
 Analysis by: Mark Joseph Manahan
 PLATFORM:

Unix, Linux

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This Trojan joins an Internet Relay Chat (IRC) channel. It executes commands from a remote malicious user, effectively compromising the affected system.

  TECHNICAL DETAILS

File Size:

16,311 bytes

File Type:

Script

Memory Resident:

Yes

Initial Samples Received Date:

25 Sep 2014

Payload:

Compromises system security, Connects to URLs/IPs

Arrival Details

This Trojan may be downloaded from the following remote site(s):

  • http://{BLOCKED}.{BLOCKED}.67.223/jur

Backdoor Routine

This Trojan connects to any of the following IRC server(s):

  • {BLOCKED}.{BLOCKED}.209.84:443

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

  • #new ddosit

It executes the following commands from a remote malicious user:

  • op - Grant a user an operator status
  • tcpflooder - Perform TCP flooding
  • httpflooder - Perform HTTP flooding
  • join - Join a channel
  • deop - Revoke a user's operator status
  • part - Leave a channel
  • portscan - Scan an IP address for specific ports
  • msg - send message

Other Details

This Trojan uses the following credentials when accessing its IRC server:

  • Nick |PHP|

  SOLUTION

Minimum Scan Engine:

9.700

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