Analysis by: Christopher Daniel So
ALIASES:

Exploit:Java/CVE-2008-5353.EQ (Microsoft), Troj/JavaDl-V (Sophos)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives as a Java Applet component of a malicious Java archive file (.JAR) that is hosted in a malicious website.

It downloads files. It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

  TECHNICAL DETAILS

File Size: 13,433 bytes
File Type: Java Class
Memory Resident: No
Initial Samples Received Date: 05 May 2011
Payload: Downloads files

NOTES:

This Trojan arrives as a Java Applet component of a malicious Java archive file (.JAR) that is hosted in a malicious website.

It executes the file specified in the parameter slink. It downloads the file specified in the parameter sdata. It saves the file it downloads using the following name:

  • %User Temp%\{random file name}.tmp

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.