Troj/Bckdr-QHO is a Trojan for the Windows platform.
When Troj/Bckdr-QHO is installed the following files are created:
<System>\ntio256.sys
<System>\protector.exe
The file ntio256.sys is detected as Troj/Agent-EYS.
The file protector.exe is also detected as Troj/Bckdr-QHO and includes functionality to access the internet and communicate with a remote server via HTTP.
The file ntio256.sys is registered as a new system driver service named "ntio256", with a display name of "Input and output operations" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\ntio256
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_NTIO256