X97M_LAROUX.DX

October 09, 2012
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Others

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This virus has no destructive macro codes and it only infects .XLS files.

  TECHNICAL DETAILS

File Size:

Varies bytes

Memory Resident:

Yes

Initial Samples Received Date:

13 Jan 2000

Arrival Details

This malware may be downloaded from the following remote site(s):

  • http://{BLOCKED}s.gov.cn/Files/adminFiles/pxkszx/2012/5-23/2012052316452049040.xls

NOTES:
This is an Excel 97 virus, and its viral code resides in the Results module. It has 2 macro procedures (auto_open, ck_files). This virus drops the file Results.xls at the application startup folder of MS Excel (by default c:\Program Files\Microsoft Office\Office\XlStart), so that it can run when Microsoft Excel 97 is restarted.

  SOLUTION

Minimum Scan Engine:

9.200

VSAPI OPR PATTERN File:

7.193.00

VSAPI OPR PATTERN Date:

25 May 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

Scan your computer with your Trend Micro product to delete files detected as X97M_LAROUX.DX. 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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