Friends and Family virus
n. A computer virus that infects a machine and then replicates by emailing copies of itself to people in the user's address book.
yeah, buddy of mine just had his OSX machine hacked yesterday… sent me and about 50 other coworkers, friends and family virus linked AIMs.
—James Hart, “Re: Best Free Anti Virus Software,” TalkBass, December 13, 2009
Trojan worms resort to all sorts of unusual and clever tactics to persuade users to activate them. The Hybris Trojan worm promises recipients a ribald tale involving Snow White and the seven dwarfs. One common type of Trojan worm, often called a Friends and Family virus after MCI's famous marketing program for long-distance services, disguises messages bearing the worm so that they appear to have been sent by someone familiar.
—Brett Glass, “Know Your Enemy,” PC Magazine, May 08, 2001
1999 (earliest)
Friends and Family Virus A computer virus that replicates by using an infected machine to send out email messages either by accessing the machine's address book or by replying to incoming messages.
—Gareth Branwyn, “Jargon Watch,” Wired, September 01, 1999