Hope someone can help me.
Yesterday I discovered a new internet dial-up which I had not put on to the computer. It was to another ISP, not my own. Had the user name of 'newdefaultuser' with a fifteen letter encrypted password. I dialled it, and got online. I phoned the ISP's helpline, but they couldn't help me. I have since deleted this, but haven't got a clue how it got on to my computer in the first place.
Also, I was filling out name and email details on a web site the other day - my computer normally remembers my details on most sites like this. This time it had my name stored, but also someone else's name. This person does not have access to my pc.
I run Win98 SE. Have Norton AV and use Black Ice firewall. I get all available updates of all three. I have been in several sites over the last few days to check my security and all sites came up with the same answer - that my computer is running in stealth mode.
These two things are worrying me. Have I been hacked? If so, how can I find out? Norton hasn't found anything. If a trojan has been left on my machine, how can I trace it and delete it? Or should I reformat?
Thank you for any help you can offer.