TROJ_FAKEAV.DL
Rogue:Win32/Winwebsec (Microsoft)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
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.
TECHNICAL DETAILS
421,888 bytes
EXE
Yes
03 Aug 2012
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 the following files:
- %Desktop%\Live Security Platinum.lnk
- %Start Menu%\Programs\Live Security Platinum\Live Security Platinum.lnk
- %System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}
- %System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.ico
(Note: %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It drops the following copies of itself into the affected system:
- %System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.exe
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It creates the following folders:
- %Start Menu%\Programs\Live Security Platinum
- %System Root%\Documents and Settings\All Users\Application Data\{random name}
(Note: %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.. %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
{random name} = "%System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.exe"
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Installer
HKEY_CURRENT_USER\Software\Microsoft\
Installer\Products
HKEY_CURRENT_USER\Software\Microsoft\
Installer\Products\{random name}
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Installer\Products\{random value}
(Default) = "1"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
DisplayIcon = "%System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.ico,0"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
DisplayName = "Live Security Platinum"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
ShortcutPath = ""%System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.exe" -u"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
UninstallString = ""%System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.exe" -u"
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}ybilling.com
SOLUTION
9.200
9.302.04
03 Aug 2012
9.303.00
04 Aug 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
Scan your computer with your Trend Micro product and note files detected as TROJ_FAKEAV.DL
Step 3
Restart in Safe Mode
Step 4
Delete this registry key
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
- Installer
- Installer
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall
- Live Security Platinum
- Live Security Platinum
Step 5
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
- {random name} = "%System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.exe"
- {random name} = "%System Root%\Documents and Settings\All Users\Application Data\{random name}\{random name}.exe"
Step 6
Search and delete these folders
- %Start Menu%\Programs\Live Security Platinum
- %System Root%\Documents and Settings\All Users\Application Data\{random name}
Step 7
Search and delete this file
- %Desktop%\Live Security Platinum.lnk
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_FAKEAV.DL. 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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