If I had three inches for every three inches I'd been promised, I'd be a hit with the girls who hang out around Rodeos--for calf roping equipment.
I did show an ad to my wife, though, and her response was an emphatic NO!, so that made me feel good, but otherwise, I envision a small spot in Hell where these folks can read aloud every message they send .....
It looks like someone's entered by that method and is grabbing passwords. Since your computer doesn't contain any e-mail virus(according to Norton), the spam is probably going from someone else's computer. See also
See if you have a program called "system32.exe" running, or residing on your computer.