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JAVA_DLOADR.WH

October 09, 2012
 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.