How can i find who installled malicious script in my pc?my os is windows xp?

Answer 1

Yeah... the *date* is going to do a whole lot for you...

Just forget it. There's no way you'll find out WHO "installed a malicious script" on your computer. Absolutely no way.

Besides, even if you knew who did it, what are you going to do about it? Nothing.

Just give it up and don't lose sleep over it. That's my best advice.

Answer 2

What I'd do is go to search, search by date, for the date that's showing with the script.  Probably, tho, u got it from visiting a "bad" website, so it will be hard to tell, unless you never empty your Temporary Files folder.