TROJ_STARTPA.ZH

This Trojan modifies the user's Internet Explorer home page into a certain website. This action allows the malware to point to a website which may contain malware, putting the affected computer at greater risk of malware infection.

Installation

This Trojan drops the following copies of itself into the affected system:

• %Windows%\nvsvc32.exe

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)

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\Run
NVIDIA driver monitor = "%Windows%\nvsvc32.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
NVIDIA driver monitor = "%Windows%\nvsvc32.exe"

Other System Modifications

This Trojan adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Terminal Server\
Install\Software\Microsoft\
Windows\CurrentVersion\Run
NVIDIA driver monitor = "%Windows%\nvsvc32.exe"

It creates the following registry entry(ies) to bypass Windows Firewall:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
{malware path and file name} = "%Windows%\nvsvc32.exe:*:Enabled:NVIDIA driver monitor"

Web Browser Home Page and Search Page Modification

This Trojan modifies the user's Internet Explorer home page to the following websites:

• http://{BLOCKED}turls.info

Other Details

This Trojan sets the attributes of the following file(s) to Hidden and System:

• {malware path and file name}
• %Windows%\nvsvc32.exe

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)