I've got a trojan problem...?

I've got Symantec AntiVirus, and about once every 3-4 minutes an Auto-Protect box comes up saying that a "trojan horse" has been found and deleted. The filename is csrss.exe (I realize this is also an essential windows process), at the location C:\WINDOWS\... That's pretty much all it tells me (besides telling me it's coming from my own computer). Usually it finds two of these files each time it pops up... I'm not sure how big of a deal this is since the files just keep getting deleted, but it's really annoying to see the warning box pop up over and over.

How can I find out where these files keep coming from so I can stop this?

I've got a trojan problem...?antivirus downloads

csrss.exe should be in c:\windows\system32 ( wind xp )

if its elsewhere you can delete it

you seem know technical stuff

goto safe mode

click start--search

type csrss.exe and click more advanced options

make sure the first three options are checked

and click search

you ll see the system file in c:\windows\system32 , dont delete this

delete the other file csrss.exe which has differnet location )

if you are unable to delete it , cut and paste it on desktop

after reboot you ll be able to delete it

this trojan will be there on startup also

start--run--msconfig--clickok