CHESS@YKTVMV.BITNET (David.M.Chess) (05/30/91)
Below is a list, in roughly descending order, of the PC-DOS viruses that we've actually seen in real-life incidents in the past year (to eliminate "one-off"s, and try to get just the important ones, I've only listed the ones that we've seen and verified in at least three incidents over the past year; this technique of data-reduction is open to modification!). I'd be very interested in similar lists from other folks, especially if there are significant differences. The population that we see reports from, as we've said before, is heavily weighted towards Fortune-500 companies and suchlike, but has some of everything. I've only counted incidents in which we were able to get a sample and verify (by hand, or with a CRC-based automatic verifier) that it really was that virus; I'm not counting "I've heard that Wuga is widespread in the Arctic" or "my cousin ran a virus-scanner, and it said he had the GaBooo virus, so he formatted his hard disk" sorts of reports. (I'd appreciate it if other folks who are kind enough to make their lists available would indicate whether they're using similar standards for what to count.) Here are ours. 28 different viruses (I've folded together the 1813 and one tiny variant of it, that we call 1813-00). Note that the slope is very steep here; the Bouncing Ball accounts for fewer than one-third as many incidents as the 1813. Stoned (Marijuana) 1813 (Jerusalem) Bouncing Ball (Ping-Pong) JOSHI Yankee Doodle-2885 (TP44VIR) 1701 4096 (Frodo) 1704 Sunday Dark Avenger Vacsina (TP05VIR) TP16VIR Slow Form Brain Keypress Flip-2153 Plastique (Anti-CAD) Disk Killer 1575 Microbe Liberty Yankee Doodle-2772 (TP39VIR) 5120 (VBASIC) Ohio Anarkia 1381 (Internal Error) Is everyone else seeing similar things? DC
c-rossgr@uunet.uu.net (05/31/91)
>From: "David.M.Chess" <CHESS@YKTVMV.BITNET>
Microcom tech support in Virex-PC reports:
1. Stoned
2. Jerusalem (with varients)
3. Disk Killer/Ogre (yeah, surprised me, too!)
4. Joshi
5-10. Cascade, Fumanchu, Sunday (yeah...see 2., above), Yankee (and varients)
Ping Pong, Ghostballs.
My own tech support for FLU_SHOT+ shows:
1. Jerusalem (with varients)
2. Stoned
3. Joshi
4. Ping Pong
5. everything else.
Ross