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JAVA_EXPLCVE.AJ

January 06, 2014
 Analysis by: Jennifer Gumban
 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:
 INFORMATION EXPOSURE:

  • Threat Type: Others

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW


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

  TECHNICAL DETAILS

File Size:

10,243 bytes

File Type:

Java Class

Initial Samples Received Date:

31 May 2013

Arrival Details

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

Installation

This malware drops the following file(s)/component(s):

  • %TEMP%\{random name}.exe

Download Routine

This malware downloads a possibly malicious file from a certain URL. The URL where this malware downloads the said file depends on the parameter passed on to it by its components.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

9.950.09

FIRST VSAPI PATTERN DATE:

31 May 2013

VSAPI OPR PATTERN File:

9.951.00

VSAPI OPR PATTERN Date:

01 Jun 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 and note files detected as JAVA_EXPLCVE.AJ

Step 4

Search and delete this file

[ Learn More ]
There may be some 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.  
  • %TEMP%\{random name}.exe

Step 5

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