i read this post on download.com that antivirus 2008 became more evil antivirus 2008 at downlaod.com
if you have xp antivirus 2008 don't ever boot in safe mode because it will be undetectable and it seems that mbam can't remove xp antivirus 2008 after it became more evil
the instruction about how to remove xp antivirus 2008 manually if mbam failed to remove it is in the link above
And do a complete scan every 3 or 4 days using malware bytes anti-malware and the programs above
And download xp sp3 or vista sp1 and always download the updates from microsoft
