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TROJ_DROPPER.OAC
Overview

Malware type: Trojan

Aliases: No Alias Found

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:

Medium

Distribution potential:

Low

Description: 

Trend Micro threat researchers post findings and analyses on various threats in real-time at the Malware Blog. Users can find more information about this specific threat here.

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

TROJ_DROPPER.OAC Behavior Diagram

Malware Overview

This Trojan may be downloaded from a certain remote site.

When exexuted, it drops components files. Trend Micro detects some of these files as IRC_ZAPCHAST.BI and MAL_ZAP. As a result, routines of the dropped malware are also exhibited on the affected system.

This Trojan also displays the following image file to trick users into thinking that it is a legitimate picture file and to hide its malicious execution on the background:

TROJ_DROPPER.OAC Image

It installs its own mIRC application in the Windows Temporary folder to drop its component files.

It displays the following icon that resembles the American flag:

TROJ_DROPPER.OAC Icon

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

Description created: Jul. 3, 2008 3:36:35 PM GMT -0800

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