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X97M_LAROUX.CS

November 14, 2014
 ALIASES:

Virus:X97M/Laroux.HT (Microsoft)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: File infector

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  TECHNICAL DETAILS

File Size:

Varies

File Type:

XLS

Initial Samples Received Date:

24 May 2010

Arrival Details

This malware arrives via the following means:

  • Opening .XLS files which are infected by this malware

Installation

This file infector drops the following copies of itself into the affected system:

  • %Application Data%\Microsoft\Excel\XLSTART\CREATIVE.XLS

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

7.192.13

FIRST VSAPI PATTERN DATE:

24 May 2010

VSAPI OPR PATTERN File:

7.193.00

VSAPI OPR PATTERN Date:

24 May 2010

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 clean files detected as X97M_LAROUX.CS. 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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