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TROJ_STRAT.DR
Overview

Malware type: Trojan

Aliases: Email-Worm.Win32.Warezov.dc (Kaspersky), W32/Stration.dldr (McAfee), W32.Stration.CX@mm (Symantec), TR/Dldr.Stration.C (Avira), W32/Stratio-AW (Sophos),

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 98, ME, NT, 2000, XP, Server 2003

Encrypted: No

Overall risk rating:


Reported infections:

Damage potential:

High

Distribution potential:

Low

Infection Channel 1 : Spammed via email


Description: 

On September 22, 2006, in the face of increasing infections and seemingly endless release of new variants into the wild, the Trend Micro Japan office declared a local alert to control the onslaught of WORM_STRATION, which was quickly gaining the notoriety for spawning iterations in rates not seen since 2005's MYTOB. In just a few weeks, WORM_STRATION was also found spreading like wild fire in the rest of the world, primarily in the US. Read an article documenting the STRATION event here: The STRATION Strategy.

To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Behavior Diagram shown below.

TROJ_STRAT.DR Behavior Diagram

Malware Overview

This Trojan may arrive on a system as an attachment to a spammed email message.

Upon execution, it drops a copy of itself using a random file name in the Windows system folder.

It also downloads a file detected by Trend Micro as WORM_STRAT.DR from certain URLs. Thus, the routines of the downloaded worm are also exhibited on the affected system.

It may display the following message upon execution:

{Displays a message notifying that the updates has been successfully installed.}

Moreover, it may drop and open a text file having a random file name in the folder where it originally executes. The said dropped file contains garbage characters.

For additional information about this threat, see:
Solution
Technical Details

Description created: Oct. 18, 2006 5:49:51 PM GMT -0800

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