JAVA_AGENT.BA

November 26, 2013
 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: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

  TECHNICAL DETAILS

File Size:

Varies

File Type:

Java Class

Memory Resident:

No

Initial Samples Received Date:

19 Nov 2013

Arrival Details

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

Download Routine

This Trojan 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.

Other Details

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

  • %TEMP%\{random value}.exe
  • %TEMP%\{random value}.dll

NOTES:

The file type of the file it downloads depends on the parameter.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.418.07

FIRST VSAPI PATTERN DATE:

18 Nov 2013

VSAPI OPR PATTERN File:

10.419.00

VSAPI OPR PATTERN Date:

19 Nov 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_AGENT.BA

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%\{ramdom value}.exe
  • %TEMP%\{ramdom value}.dll

Step 5

Scan your computer with your Trend Micro product to delete files detected as JAVA_AGENT.BA. 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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