qo.dll is a process belonging to the Backdoor.W32.Haxdoor program . "qo.dll is a process registered as a backdoor vulnerability which may be installed for malicious purposes by an attacker allowing access to your computer from remote locations, stealing passwords, Internet banking and personal data." "This process is a security risk and should be removed from your system."
Check that qo.dll is stable on your computer.

qo.dll is not a critical component. It is highly recommended to run a FREE performance scan to automatically optimize memory, CPU and Internet settings.

Determining whether qo.dll is a virus or a legitimate Windows DLL depends on the directory location it executes or runs from. Click to Scan your PC including qo.dll to Detect any Security Threat.