I am trying to fix a friend's computer.
When I do START->Run and type cmd
I get the message
"Windows cannot find C:\Windows\System32\cmd.exe"
The file is there where %comspec% says it should be, and when I copy it to another name such as cmd2.exe, I can run it without any problem.
Same for regedit.
Web search indicates this might be from malware, but the system is being scanned with up-to-date AVG, but I didn't find any answer.
I followed the steps here at bleeping before submitting a HijackThis log, and tried to do a Kaspersky on-line scan, but couldn't get to download properly, perhaps because we live behind a corporate firewall. So I'll submit just the DSS log.
I'd be glad of any help.