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LNK_FAKEAV.SMS

March 11, 2013
 Modified by: Rika Joi Gregorio
 ALIASES:

Mal/LnkFkAV-F (Sophos)

 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:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan 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 2013

Arrival Details

This Trojan may be dropped by other malware.

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 malware TROJ_FAKEAV once this shortcut is accessed.

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

The target property of the .LNK file contains the following formats:

  • %ProgramData%\{random name}\random name}.exe
  • %All Users Application Data%\{random name}\random name}.exe

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.770.06

FIRST VSAPI PATTERN DATE:

07 Mar 2013

VSAPI OPR PATTERN File:

9.771.00

VSAPI OPR PATTERN Date:

07 Mar 2013

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

Scan your computer with your Trend Micro product to delete files detected as LNK_FAKEAV.SMS. 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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