Q: Does antispyware beta find everything?
No. No anti-virus, anti-spyware, anti-<whatver> software is 100% effective. If you're really paranoid, you run two of your favorite anti-* software (as is Microsoft's recommendation).
> because I got signed outta MSN onto another PC and I
> know for a fact that noone knows my password
Well, if someone signed you on from another PC where you weren't present, then obviously someone knows your password. Chances are you simply got your password guessed (majority of the time, stolen passwords are due to users picking weak passwords, like "4nicate", versus something strong like "^vdUj}T1"), or it was cached at one of the internet cafe's that you frequented.
However, if you *really* think you might have a keylogger, then try the following:
If you don't have Anti-virus software (with an active subscription), go get Avast! from: http://www.avast.com/eng/avast_4_home.html
(Grisoft also offers a free A.V. suite: http://www.grisoft.com)
Update your virus database, and do a complete scan of your system.
Download, install, update, and run "Ad-Aware", and "Spybot Search and Destroy" both. (links provided in my previous post)
Once you've done that, go to Trend Micros house call software, and have it scan your system to verify you're clean. ( found at http://www.trendmicro.com/hc_intro/default.asp )
If you still get positives, go to http://www.trendmicro.com/spyware-scan/ and let it attempt to clean up you're PC.
Chances are you're PC is clean at this point. If not, you can either find a computer security service in your area to remove the stuff, or simply format your hard disc, and re-install the OS.
Once you're all clean, there's still a couple things to do:
Change your on-line passwords. Use strong passwords (eight characters long, include upper and lower case letters, at least one number, and at least one extended (i.e. %, }, |, !, ,, #) character, don't use anything that resembles a real word)
Go download Firefox, Thunderbird, and Gaim. Quit using IE, Outlook Express, and MSN Messenger -- which are major vectors of infections.
Optional Karma Bonus: If any of the above free software that you downloaded (Avast!, Ad-Aware, or Spybot Search and Destroy, Trend Micro) found something and cleaned if off your system, go purchase a copy of their software in thanks for saving your hiney.
Edited, Sun Jan 8 18:10:54 2006 by Unixium