TROJ_DROPPER.ZGD
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Trojan executes the files it drops, prompting the affected system to exhibit the malicious routines they contain.
TECHNICAL DETAILS
961,536 bytes
EXE
No
30 May 2012
Arrival Details
This Trojan may be downloaded from the following remote sites:
- http://{BLOCKED}a.com/
Installation
This Trojan drops the following non-malicious file:
- %User Temp%\calc.exe
(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 creates the following folders:
- %User Temp%\IXP000.TMP
(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.)
Dropping Routine
This Trojan drops the following files:
- %User Temp%\IXP000.TMP\basi.exe - detected as TROJ_VBINJECT.XG
(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 files it drops, prompting the affected system to exhibit the malicious routines they contain.
SOLUTION
9.200
9.154.05
31 May 2012
9.155.00
31 May 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 3
Search and delete this folder
- %User Temp%\IXP000.TMP
Step 4
Search and delete this file
- %User Temp%\calc.exe
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_DROPPER.ZGD. 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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