DavidR
5
Read this information, http://www.symantec.com/avcenter/venc/data/w32.gaobot.afw.html the information is relevant to the win32.gaobot familly.
It states which vulnerabilities it takes advantage of and which MS security updates patch it, even though you think you are upto date with your Operating System (OS), something hasn’t been patched. That’s why it keeps coming back After this my computer runs like a bought one for a week or so and then it does this all over again.. I suggest that you reapply the patches again.
You need to switch off system restore, to get rid of items in the ‘C/System Volume Information?_restore{7F133ADB-DEE1-48EC’ folder as this is protected by Windows. Having done that, reboot and scan again. If all is clear then you can enable system restore again.
Win XP - How to disable System Restore
Don’t worry about your experience level, take it one step at a time (the whole process may seem daunting), print off the instruction and information we have given you so it is easier to follow step by step.