You know it's really bad

When you bring up your own website and you get "somethingnastyashell.exe is an executable what do you want to do with it?" and you realize this may have been going for a long time friends, family, coworkers, the great unwashed public, have been victimized by your site I took down the banner immediately but who knows how much damage was done it's very horrible. I have adsense now and I haven't seen any driveby goodies for two years but I always check there are people I know who won't visit my site still because they got the malware I don't blame them I am not sure I would trust me either.