Jookia wrote:
I think that you should be aware that Microsoft, who owns and maintains Windows, don't really care about fixing exploits in their OS.
Actually they do, which is why you can run Windows on a US DoD computer but not Ubuntu. I'd get into details, but suffice it to say Windows is more secure than 95% of everything else out there when a single machine or network is under a directed attack.
Since it has over an 80% market share on the desktop though, it is targeted as the OS of choice by most malcontents looking to write malware.
On any OS, the most important line of defense is the person sitting in front of it. Most operating systems are sufficiently secure that they must have your permission to actually install the malware (including Windows). Secondly comes a good set of backups. The ideal solution is a daily or hourly to an external HDD (or CD/DVD if the data doesn't change much), and an online backup such as Carbonite or Mozy. Third is AV - I usually run Microsoft Security Essentials on any machine I don't care much about, and pick up some cheap commercial AV if I do. Fourth and lastly is a software firewall: and let's face it, you really should just get a router with SPI, they're pretty cheap now, and the Windows firewall from the NT6 family and on (Vista and later) is actually plenty secure.
For future reference though, assuming it wasn't a tssd infection or similar, it could have been removed with HijackThis from this website:
http://free.antivirus.com/hijackthis/
Keep in mine, when in doubt, post a log and I can analyze it for nasties on the list for you.