Analysis by: Kathleen Notario
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

It takes advantage of certain vulnerabilities.

  TECHNICAL DETAILS

File Size: 357,399 bytes
File Type: XLS
Memory Resident: No
Initial Samples Received Date: 05 Nov 2010
Payload: Drops files

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\winword.exe - detected as TROJ_DINGU.B

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

It takes advantage of the following software vulnerabilities to drop malicious files:

  SOLUTION

Minimum Scan Engine: 8.900

Step 1

For Windows ME and XP users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Remove malware files dropped/downloaded by TROJ_MDROPPR.AH

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_MDROPPR.AH 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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