Troj/Haxdoor-GN

Please follow the instructions for removing Trojans.

Troj/Haxdoor-GN is a Trojan for the Windows platform.

Troj/Haxdoor-GN runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer. Troj/Haxdoor-GN is a Trojan for the Windows platform.

Troj/Haxdoor-GN runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer.

Troj/Haxdoor-GN includes functionality to:

- stealth its files, processes, registry entries and services
- prevent itself being terminated
- prevent itself being deleted
- disable other software, including anti-virus, firewall and security related applications

When Troj/Haxdoor-GN is installed the following files are created:

<System>\avpe32.dll
<System>\avpe64.sys
<System>\qz.dll
<System>\qz.sys
<System>\klgcptini.dat - this file may be deleted
<System>\stt82.ini - this file may be deleted

The files avpe32.dll, avpe64.sys, qz.dll and qz.sys are detected as Troj/Haxdor-Fam.

The following registry entries are created to run code exported by avpe32.dll on startup:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\avpe32
DllName
avpe32.dll

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\avpe32
Startup
MmPageFree

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\avpe32
Impersonate
1

The file avpe64.sys is registered as a new system driver service named "avpe32", with a display name of "TCPIP2 Kernel32" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\avpe32\

The file avpe64.sys is registered as a new system driver service named "avpe64", with a display name of "TCPIP2 Kernel". Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\avpe64\