JAVA_EXPLOIT.DAW

January 16, 2013
 Analysis by: Rhena Inocencio
 ALIASES:

Exploit:Java/CVE-2012-1723!generic (Microsoft), Exploit.Java.CVE-2012-1723.is (Kaspersky), Exploit-CVE2012-1723.h (McAfee), Java/Exploit.CVE-2012-1723.CT trojan (ESET), Troj/JavaBz-LV (Sophos)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This Trojan arrives as a component bundled with malware/grayware packages. It may be hosted on a website and run when a user accesses the said website.

It requires its main component to successfully perform its intended routine. It takes advantage of certain vulnerabilities.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

Java Class

Initial Samples Received Date:

14 Jan 2013

Arrival Details

This Trojan arrives as a component bundled with malware/grayware packages.

It may be hosted on a website and run when a user accesses the said website.

Other Details

This Trojan requires its main component to successfully perform its intended routine.

It takes advantage of the following vulnerabilities:

NOTES:

This is the Trend Micro detection for malicious Java Class that attempts to exploit a vulnerability in the Java Runtime Environment component of the following:

  • Java SE 7 Update 2 and earlier
  • Java SE 6 Update 30 and earlier
  • Java SE 5.0 Update 33 and earlier
  • Java SE 1.4.2_35 and earlier

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.654.06

FIRST VSAPI PATTERN DATE:

14 Jan 2013

VSAPI OPR PATTERN File:

9.655.00

VSAPI OPR PATTERN Date:

14 Jan 2013

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as JAVA_EXPLOIT.DAW. 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 4

Download and apply this security patch 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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