Analysis by: Christopher Daniel So
ALIASES:

Exploit:Java/CVE-2012-0507.D!ldr (Microsoft)

 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 component bundled with malware/grayware packages.

  TECHNICAL DETAILS

File Size: Varies
File Type: Java Class
Initial Samples Received Date: 10 Apr 2012

Arrival Details

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

NOTES:

It downloads from the URL specified in the parameter elpqggftutymwsfvlpfcgykqg and saves it as {malware path}\arg{random number}.exe. It then executes the downloaded file. As a result, malicious routines of the downloaded file are exhibited on the affected system.

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 8.900.04
FIRST VSAPI PATTERN DATE: 10 Apr 2012
VSAPI OPR PATTERN File: 8.901.00
VSAPI OPR PATTERN Date: 11 Apr 2012

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

Close all opened browser windows

Step 3

Search and delete this file

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.
  • {malware path}\arg{random number}.exe

Step 4

Scan your computer with your Trend Micro product to delete files detected as JAVA_EXPLCVE.JM. 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.


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