Analysis by: Michael Cabel
 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes


  TECHNICAL DETAILS

Tipo de compactação: 145,922 bytes
Tipo de arquivo: XLS
Residente na memória: No
Data de recebimento das amostras iniciais: 01 Sep 2010

Other Details

More information on this vulnerability can be found below:

  • http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0557

It does the following:

  • This trojan takes advantage of a vulnerability in certain versions of Microsoft Excel. Once successfully exploiting the said vulnerability, it may drop and execute malicious files on the affected system.
  • As a result, routines of the dropped files are then exhibited on the affected system.

  SOLUTION

Mecanismo de varredura mínima: 8.900
Padrão VSAPI: 7.435.00
Data de lançamento do padrão VSAPI: 04 Sep 2010
Data de lançamento do padrão VSAPI: 9/4/2010 12:00:00 AM

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 TROJ_XDROP.RCE. 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.

Step 3

Download and apply this security patch Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors.  http://www.microsoft.com/technet/security/Bulletin/MS09-021.mspx


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