Analysis by: Rika Joi Gregorio

ALIASES:

Win32/Dorkbot.F worm(Eset)

 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.

  TECHNICAL DETAILS

File Size: 1,732 bytes
File Type: LNK
Initial Samples Received Date: 13 May 2013

Arrival Details

This Trojan may be dropped by other malware.

NOTES:
This file is a component of WORM_DORKBOT malware family. It is a shortcut file that executes its malware component using cmd.exe.

  SOLUTION

Minimum Scan Engine: 9.300
FIRST VSAPI PATTERN FILE: 9.920.04
FIRST VSAPI PATTERN DATE: 15 May 2013
VSAPI OPR PATTERN File: 9.921.00
VSAPI OPR PATTERN Date: 16 May 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_DORKBOT.MZ. 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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