Win32.Knightseven is a backdoor spyware program.  It functions in the same way that many legitimate remote administration programs do.  The difference is these programs use the access to your PC as a way to gather data or use your machine to its dirty work.  This pest will leave the following fingerprint f39f27410b37e9d1.

However, understand these backdoor programs are typically very difficult to detect.  Win32.Knightseven will hide its processes for the sole purpose of making itself unseen.  Some signs of infection include a slow computer, strange files and programs cropping up, missing files and e-mails being sent without your knowledge or consent.

AKA:
Backdoor.Win32.Knightseven.10
Backdoor:Win32/Knightseven.1_0

Category:
Trojan

Recommended Action:
Remove at once.

Win32.Knightseven can be removed manually but not without some degree of difficulty.  Average users may find the process confusing and time intensive.  However, it can be achieved by locating all files, folders, processes and registry entries related to this program.  All must be terminated and deleted.

For professional removal, SpyZooka is an excellent choice.  SpyZooka comes with an all-automated system that requires no heavy lifting on your part.  The work is done for you.  SpyZooka will scan, detect and remove all spyware quickly and easily.