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TROJ_DROPHIN.A
Malware type: Trojan
Destructive: No
Platform: Windows 2000, Windows XP, Windows Server 2003
Encrypted: No
In the wild: Yes

Overview


This Trojan may be dropped by other malware.

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Technical Details


File size: 53,322 bytes
File type: EXE
Memory resident: No
Initial samples received date: 03 Apr 2012
Payload: Drops files

Arrival Details

This Trojan may be dropped by the following malware:

  • TROJ_ARTIEF.XPL

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\explorer.exe - detected as TROJ_PHINDOLP.A

(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 executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Solution


Minimum scan engine: 9.200
First VSAPI Pattern File: 8.886.07
First VSAPI Pattern Release Date: 04 Apr 2012
VSAPI OPR Pattern Version: 8.887.00
VSAPI OPR Pattern Release Date: 05 Apr 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

Remove malware/grayware files that dropped/downloaded TROJ_DROPHIN.A

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_DROPHIN.A. 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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Analysis By: Roland Marco Dela Paz

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