Analysis by: Sabrina Lei Sioting
 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  TECHNICAL DETAILS

File Size: 383,272 bytes
File Type: PE
Memory Resident: Yes
Initial Samples Received Date: 10 Sep 2010

Installation

This Trojan drops the following files:

  • %system%\esent98.sys - detected by Trend Micro as HKTL_SMALL
  • %system%\d3mgr.dll - same detection name
  • %system%\esent98.exe - same detection name

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI OPR PATTERN File: 07.452.01
VSAPI OPR PATTERN Date: 10 Sep 2010

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

Remove malware files dropped/downloaded by TROJ_TAPAOUX.D

     HKTL_SMALL

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_TAPAOUX.D. 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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