Well we could have told them that: Shodan: The scariest search engine on the Internet
Alternatively: http://boards.straightdope.com/sdmb/search.php?searchid=9392666
Scarier? You be the judge.
Regards!
The second link doesn’t work.
I guess you can’t link to SDMB search results. 
It was just a list of Shodan’s postings. The first link was the real point.
Silly h-h-h-hacker. Pathetic creature of meat and bone. You have stumbled upon something you s-s-should not s-s-see.
Don’t remove its ethical constraints, then you’ll see scary!
Aww, I was all set to come in here with a System Shock reference. Beaten to the punch. . .
All my servers at work are named after deadly AIs: SHODAN, HAL9000, and GLaDOS. I’ve got a new one coming online later this year and I’m not sure what name to use next.
I suggest Hactar.
Durandal?
343 guilty spark
Off the top of my head:
Evil: AM, TechnoCore, Icarus, President Eden. One wants to kill, two want to subjugate, one wants to “purify.”
Not so evil, but maybe not good: Daedalus, Helios, Morpheus, Wintermute.
TVTropes page for more examples.
What about Skynet? Does that count?
Landru or the M5.
Colossus
I think HAL-9000 got a really bad reputation after a serious bout of Hofstadter-Moebius loop syndrome. While HAL’s actions were deadly, they weren’t unethical to the mind that actuated them when those actions occurred. After his reboot, he became quite a stand-up kind of AI.
I believe that puts HAL-9000 in a different category from SHODAN or GLaDOS.
Thanks for all the suggestions folks. I’m glad to see that everyone has recognized the importance of my situation here. . . 
Looks like I’ve unintentionally hijacked njtt’s thread here. Sorry about that!
I agree actually. I initially worded my post as “evil AIs” and then I decided that HAL wasn’t actually evil. As you said, he was a victim of ill-considered programming. Still, he did kill some (4?) people, and tried to kill another so that counts as deadly in my book. Perhaps more akin to an industrial accident than murder?
There’s definitely a difference in the autonomy levels between HAL9000 and SHODAN. HAL had some level of autonomy, but he was still following orders as best he could. SHODAN was totally doing her own thing as I recall.
I played around with it for about an hour.
I wanted to find a nuclear reactor somewhere to play with, but a free account seems to be severely limited, and all I could find were a bunch of webcams that either had the default passwords changed or just plain didn’t work.
I thought one could still get to the Iranian sit, “Bombs We Be Not”.
Eddie? 
Wombat?
