Troj/Haxdoor-DG is a Trojan for the Windows platform.
When Troj/Haxdoor-DG is installed the following files are created:
<System>\kgctini.dat
<System>\lps.dat
<System>\qo.dll
<System>\qo.sys
<System>\ycsvgd.sys
<System>\ydsvgd.dll
<System>\ydsvgd.sys
The files qo.dll, qo.sys, ycsvgd.sys, ydsvgd.dll and ydsvgd.sys are detected as Troj/Haxdor-Fam.
The dat files are data files and can safely be deleted.
The following registry entries are created to run code exported by ydsvgd.dll on startup:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ydsvgd
DllName
ydsvgd.dll
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ydsvgd
Startup
XWD33Sifix
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ydsvgd
Impersonate
1
The file ycsvgd.sys is registered as a new system driver service named "ycsvgd", with a display name of "PTA Adapter". Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\ycsvgd\