Analysis by: Christopher Daniel So
 PLATFORM:

Windows 98, ME, NT, 2000, XP, 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 executes the files it drops, prompting the affected system to exhibit the malicious routines they contain.

  TECHNICAL DETAILS

File Size: 92,858 bytes
File Type: HTA
Memory Resident: No
Initial Samples Received Date: 25 Jul 2010
Payload: Drops files

Dropping Routine

This Trojan drops the following files:

  • %AllUsersAppData%\aplay\message.dll - detected as TROJ_LAMEWAR.VTG

It executes the files it drops, prompting the affected system to exhibit the malicious routines they contain.

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI PATTERN File: 7.334.12
VSAPI PATTERN Date: 25 Jul 2010
VSAPI PATTERN Date: 7/25/2010 12:00:00 AM

Step 1

Restart in Safe Mode

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Step 2

Search and delete these files

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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. %AllUsersAppData%\aplay\message.dll

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_DAGIB.A. 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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