[Symptom of Infection]

Spyware.FraudLoad.Do is installed without user agreement, and downloads and executes Paladin Antivirus.
The downloaded Paladin Antivirus popups warning message regularly, and disables the desktop.

- It adds itself to registry for automatic execution on system boot.

[PIC 1] Installation

[PIC 2] Scan Feature

[PIC 3] Similar UI to MS security center

[PIC 4] Disable desktop regularly 1

[PIC 5] Disable desktop regularly 2

[PIC 6] Disable desktop regularly 3

[PIC 7] Warning message 1

[PIC 8] Warning message 2

[PIC 9] Warning message 3

[PIC 10] Warning message 4

[PIC 11] Created icons

[PIC 12] Purchase Feature

<Related URL>

hxxp://(...).cn/readdatagateway.php?type=(...)
hxxp://(...).cn/pav_db
hxxp://(...).cn/readdatagateway.php?type=(...)&version=3.0
hxxp://(...).cn/pav_ext
hxxp://(...).cn/pav_hook
hxxp://(...).cn/pav_un
hxxp://(...).cn/pav_main

<File>

[Spyware.FraudLoad.Do] creates files like below.

(Quick Launch Folder)\Paladin Antivirus.lnk
(Temp Folder)\4otjesjty.mof
(Temp Folder)\pav.dat
(Temp Folder)\pavr.dat
(Temp Folder)\(Random Name).tmp
(Temp Folder)\(Random Name).tmp
(Temp Folder)\(Random Name).tmp
(Temp Folder)\(Random Name).tmp
(Temp Folder)\(Random Name).tmp
(Desktop Folder)\Paladin Antivirus Support.lnk
(Desktop Folder)\Paladin Antivirus.lnk
(All User Account Folder)\Desktop\nudetube.com.lnk
(All User Account Folder)\Desktop\pornotube.com.lnk
(All User Account Folder)\Desktop\youporn.com.lnk
(Temp Folder)\1.ico
(Temp Folder)\2.ico
(Temp Folder)\3.ico
(Temp Folder)\dhdhtrdhdrtr5y
(Temp Folder)\eventcreatexp.exe

<Registry>

[Spyware.FraudLoad.Do] creates registries like below.

HKLM\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\SimpleShlExt
HKLM\SOFTWARE\Classes\CLSID\{5E2121EE-0300-11D4-8D3B-444553540000}
HKLM\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\SimpleShlExt
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Paladin Antivirus
HKLM\SOFTWARE\Paladin Antivirus
HKCU\Software
Name: eee0bd2f-ff2e-46ef-83fb-d4fda84462a3
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Name: eventcreatexp.exe
Value: "(Temp Folder)\eventcreatexp.exe"
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Name: Paladin Antivirus
Value: "(Programs Folder)\Paladin Antivirus\pav.exe" -noscan"

<Folder>

[Spyware.FraudLoad.Do] creates folders like below.

(User Account Folder)\Startup\Programs\Paladin Antivirus
(Programs Folder)\Paladin Antivirus

<Notation>

- "(All Users Account Folder)" could be different by user settings, and generally this is "C:\Documents and Settings\(All Users Account)".
- "(Desktop Folder)"could be different by OS and generally this is "C:\Documents and Settings\(User Account)\Desktop".
- "(Quick Launch Folder)" could be different by OS(or User), and generally this is "C:\Documents and Settings\(User Account)\Application Data\Microsoft\Internet Explorer\Quick Launch".
- "(Temp Folder)" could be different by OS, and generally this is "C:\Documents and Settings\(User Account)\Local Settings\Temp".
- "(Programs Folder)" could be different by OS and generally this is "C:\Program Files".
- "(Windows Folder)" could be different by OS and generally this is "C:\Windows".
- "(System Folder)" could be different by OS and generally this is "C:\Windows\System32"

[How to repair]

1. If you are WinXP/ME users, please be inactivate System Recovery Function.
The reason why being inactivate of the system recovery is to clean the virus completely.
You can refer to MS technical documents(Q263455) for more details.

2. Update the engine module for the latest one.
To repair this virus, you need to update the engine for the latest one.

a. ViRobot products users
-Download the latest engine files via our website (www.hauri.net)

b. Non-ViRobot products users
- Use the LiveCall (Free Scan) via the website (http://www.livecall.co.kr)
- Use the trial version of ViRobot products (30days only)

3. How to scan the virus.

a. Run your ViRobot, and choose all files in scan option.
- ViRobot Desktop 5.x : [Tools] -> [Configuration] -> [Spyware/Adware Scan] : Check all files
- LiveCall (Free Scan) : [Advanced Scan] : Check

b. Repair all viruses detected.