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TROJ_AGENT_031284.TOMB

October 09, 2012
 Analysis by: Mark Joseph Manahan
 Modified by: Rhena Inocencio
 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 on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size:

162,816 bytes

File Type:

SYS

Memory Resident:

Yes

Initial Samples Received Date:

24 May 2012

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

NOTES:

This is the Trend Micro heuristic detection for suspicious files that manifest similar behavior and characteristics as the following malware:

  • RTKT_SIREFEF
  • RTKT_ZACCESS

If your Trend Micro product detects a file under this detection name, do not execute the file.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

9.206.08

FIRST VSAPI PATTERN DATE:

21 Jun 2012

VSAPI OPR PATTERN File:

9.207.00

VSAPI OPR PATTERN Date:

21 Jun 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

Identify and delete files detected as TROJ_AGENT_031284.TOMB using either the Startup Disk or Recovery Console

[ Learn More ]

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_AGENT_031284.TOMB. 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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