Your HiJackThis log is clean. I talked with someone else here at Geeks to Go, and had him look at the log to make sure that I wasnt missing anything.
The only explanation that he could ome up with is that you are running Windows 98 SE. And that Operating System is known to randomly lock up.
My best advice would be to upgrade your OS, but you can try posting in our Win 95_98_ME Forum, and seeing if someone can find some type of fix for you.
The following is a list of tools and utilities that I like to suggest to people. This list is full of great tools and utilities to help you understand how you got infected and how to keep from getting infected again.
- Spybot Search & Destroy - Uber powerful tool which can search and annhilate nasties that make it onto your system. Now with an Immunize section that will help prevent future infections.
- AdAware - Another very powerful tool which searches and kills nasties that infect your system. AdAware and Spybot Search & Destroy compliment each other very well.
- SpywareBlaster - Great prevention tool to keep nasties from installing on your system.
- SpywareGuard - Works as a Spyware "Shield" to protect your computer from getting malware in the first place.
- IE-SpyAd - puts over 5000 sites in your restricted zone so you'll be protected when you visit innocent-looking sites that aren't actually innocent at all.
- CleanUP! - Cleans temporary files from IE and Windows, empties the recycle bin and more. Great tool to help speed up your computer and knock out those nasties that like to reside in the temp folders.
- Windows Updates - It is very important to make sure that both Internet Explorer and Windows are kept current with the latest critical security patches from Microsoft. To do this just start Internet Explorer and select Tools > Windows Update, and follow the online instructions from there.
- Google Toolbar - Free google toolbar that allows you to use the powerful Google search engine from the bar, but also blocks pop up windows.
- Trillian or Miranda-IM - These are Malware free Instant Messenger programs which allow you to connect to multiple IM services in one program! (AOL, Yahoo, ICQ, IRC, MSN)