Analysis by: JessaD
ALIASES:

Exploit:Java/CVE-2009-3867.BY (Microsoft); Exploit.Java.CVE-2009-3867.i (Kaspersky)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan may be unknowingly downloaded by a user while visiting malicious websites.

It takes advantage of software vulnerabilities to allow a remote user or malware/grayware to download files.

  TECHNICAL DETAILS

File Size: 2,987 bytes
File Type: Java Class
Memory Resident: No
Initial Samples Received Date: 04 Aug 2010
Payload: Downloads files

Arrival Details

This Trojan may be unknowingly downloaded by a user while visiting malicious websites.

Download Routine

This Trojan takes advantage of the following software vulnerabilities to allow a remote user or malware/grayware to download files:

  • Vulnerability in the HsbParser.getSoundBank function in Sun Java SE in JDK and JRE 5.0

Other Details

More information on this vulnerability can be found below:

  SOLUTION

Minimum Scan Engine: 8.900
FIRST VSAPI PATTERN FILE: 7.362.04
FIRST VSAPI PATTERN DATE: 04 Aug 2010

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Scan your computer with your Trend Micro product to delete files detected as JAVA_EXPL.TL. 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 3

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.  http://www.oracle.com/technetwork/java/javase/6u17-141447.html


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