Analysis by: Michael Cabel

 PLATFORM:

Windows 2000, Windows XP, Windows 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 may be dropped by other malware.

It injects its dropped file/component to specific processes.

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

It deletes itself after execution.

  TECHNICAL DETAILS

File Size: 115,712 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 05 Sep 2012

Arrival Details

This Trojan may be dropped by the following malware:

  • TROJ_ARTIEF.TY

Installation

This Trojan injects its dropped file/component to the following processes:

  • SVCHOST.EXE

Dropping Routine

This Trojan drops the following files:

  • %System%\datac1en.dll - detected as BKDR_MECIV.A

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Other Details

This Trojan deletes itself after execution.

  SOLUTION

Minimum Scan Engine: 9.200

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_MECIV.B

    • BKDR_MECIV.A

Step 3

Remove the malware/grayware file that dropped/downloaded TROJ_MECIV.B

    • TROJ_ARTIEF.TY

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJ_MECIV.B. 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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