This is a backdoor threat. Backdoors are one of the most dangerous types of Trojans. It gives remote administration abilities to users far away. It can give external control via a Local Area Network or through the Internet and is difficult to detect.

Backdoors can are used by virus writers to detect confidential information. They start malicious code; destroy date or anything else on an infected computer.  Basically, backdoors give complete administration rights to an unknown user.
Threat:
NCX_99

Security Risk:
Highs

Alias:
Backdoor.Win32.Ncx.a,
BackDoor-RQ,
Backdoor.Trojan,
BackDoor.Angel,
Troj/Bdoor-RQ,
BKDR_NC99.A, SPR/RemoteAdmin.Net,
BackDoor.Ncx,
Backdoor.NCX_99,
HackTool/NetCat.A,
IRC/SdBot.NP

Related files content:
None identified yet

Removal:
The NCX_99 needs to be removed immediately. If you think you have this threat, then run ZookaWare PC Cleaner’s free scan. Not only will it detect the NCX_99 backdoor threat,
but it will detect any other spyware you have on your computer. It is guaranteed to remove 100% of spyware and comes with a 60-day money back guarantee