csrsss.exe how do i get rid of it, what is it?

[premier69]

Hey guys I really need some help with this becouse it's driving me crazy!

I have a few minor irriations with my windows installation and i think it's virus/trojan related but i've used 4 programs to scan for it:

MicrosoftAntiSpywareInstall

Ad-Aware SE Professional v1.05

Spybot Search and Destroy v1.3

Xoftspy 4.06

They've all found crap and removed it, and I've used Symantec Antivirus corporate 8.1.1 and the trend microsystem online scan also they've found and removed stuff from time to time but I always with a few days between keep getting a few files re-appearing.

The first is:" testfile" that's it, no file type just "testfile" and it takes up zero space.

so i delete it only to find it there a few days later. That file appears in the root folder of my E:\ drive.

and another strange file is freqreg.dat , I don't remember the file size but this one appears in the d:\downloads\ folder where i have everything dc++ downloads stored.

I Have no idea whats making these files re-appear all the time.

And another wierd thing is the process "csrsss.exe" which take up at current writing: 11mb ram and about 20% CPU usage.

I can't figure that out either.

If you know anything please tell me.