Analysis by: Jimelle Monteser
 Modified by: Rhena Inocencio
ALIASES:

Worm:VBS/Jenxcus!lnk(Microsoft), VBS/Autorun.worm.aadd!lnk(McAfee), Troj/JenxLnk-B(Sophos), LNK/Agent.AK trojan(Eset), VBS/Autorun.BC.worm(Panda)

 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: No

  • In the wild: Yes

  OVERVIEW

Infection Channel: Dropped by other malware, Via removable drives

This Trojan arrives via removable drives. It may be dropped by other malware.

It is a component of other malware.

  TECHNICAL DETAILS

File Size: Varies
File Type: LNK
Initial Samples Received Date: 07 Mar 2014

Arrival Details

This Trojan arrives via removable drives.

It may be dropped by the following malware:

  • VBS_DUNIHI

Installation

This Trojan is a component of other malware.

NOTES:

This is the Trend Micro detection for specially crafted .LNK files that are used to execute dropped copies of the following malware upon opening the shortcut files:

  • VBS_DUNIHI

As a result, the routines of the main component file is exhibited on the affected system.

  SOLUTION

Minimum Scan Engine: 9.700
VSAPI OPR PATTERN File: 10.649.00
VSAPI OPR PATTERN Date: 07 Mar 2014

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

Remove the malware/grayware file that dropped/downloaded LNK_DUNIHI.SMIX. (Note: Please skip this step if the threat(s) listed below have already been removed.)

     
    • VBS_DUNIHI

Step 3

Scan your computer with your Trend Micro product to delete files detected as LNK_DUNIHI.SMIX. 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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