Analysis by: Mark Joseph Manahan
ALIASES:

a variant of Win32/Lukicsel.X trojan (Nod32), Trojan:Win32/Lukicsel.I (Microsoft), Mal/Lukicsel-A (Sophos), W32/Lukicsel.A (Fortinet)

 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

Infection Channel: Dropped by other malware

This Trojan may be dropped by other malware.

It exports functions used by other malware.

  TECHNICAL DETAILS

File Size: 28,160 bytes
File Type: DLL
Memory Resident: Yes
Initial Samples Received Date: 22 Jun 2012
Payload: Drops files

Arrival Details

This Trojan may be dropped by other malware.

Installation

This Trojan drops the following non-malicious file:

  • %System%\crt.dat

(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.)

Other Details

This Trojan exports functions used by other malware.

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 09.256.04
FIRST VSAPI PATTERN DATE: 13 Jul 2012
VSAPI OPR PATTERN File: 09.257.00
VSAPI OPR PATTERN Date: 14 Jul 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

Restart in Safe Mode

[ Learn More ]

Step 3

Search and delete this file

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.
  • %System%\crt.dat

Step 4

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_LUKICSEL.AE. 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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