TROJ_FAKEAV.HUE
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It deletes itself after execution.
TECHNICAL DETAILS
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan drops a copy of itself in the following folders using different file names:
- %System Root%\DOCUMENTS AND SETTINGS\ALL USERS\APPLICATION DATA\529C50D800009E46005FBEC6D151FC4E\529C50D800009E46005FBEC6D151FC4E.EXE
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It adds the following possibly malicious files or file components:
- %System Root%\DOCUMENTS AND SETTINGS\ALL USERS\APPLICATION DATA\529C50D800009E46005FBEC6D151FC4E\529C50D800009E46005FBEC6D151FC4E
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
529C50D800009E46005FBEC6D151FC4E = %System Root%\Documents and Settings\All Users\Application Data\529C50D800009E46005FBEC6D151FC4E\529C50D800009E46005FBEC6D151FC4E.exe
Other Details
This Trojan connects to the following possibly malicious URL:
- {BLOCKED}.{BLOCKED}.235.9
It deletes itself after execution.
SOLUTION
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
Restart in Safe Mode
Step 3
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
- 529C50D800009E46005FBEC6D151FC4E = "C:\Documents and Settings\All Users\Application Data\529C50D800009E46005FBEC6D151FC4E\529C50D800009E46005FBEC6D151FC4E.exe"
- 529C50D800009E46005FBEC6D151FC4E = "C:\Documents and Settings\All Users\Application Data\529C50D800009E46005FBEC6D151FC4E\529C50D800009E46005FBEC6D151FC4E.exe"
Step 4
Search and delete this file
- %System Root%\Documents and Settings\All Users\Application Data\529C50D800009E46005FBEC6D151FC4E\529C50D800009E46005FBEC6D151FC4E.exe
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_FAKEAV.HUE. 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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