After I boot my machine, I get 4-5 .tmp files generated in C:\Windows\System32\ , usually with names like: 3.tmp, 5.tmp, 6.tmp, 7.tmp, 8.tmp
These files are like 100K in size each. I can delete them manually, and they do not seem to affect anything.
This just started happening about 2,3 days ago. I think I got a virus, because once my anti-virus program popped up saying a isvchost.exe file was infected, and the iscvhost file was generated by one of those .tmp files. Even after I delete the iscvhost.exe file, it gets re-created the next time I boot, again by those .tmp files. and those .tmp files are re-generated as well, by some process I don't know.
I checked into my registry key and look for startup programs I don't know about, but everything in my startup program list is clean and known.
So how can a program regenerate files upon rebooting without me knowing?