Paperclip maximizer, obviously. Basilisks typically are static entities, and I'm not sure how you would go about making a credible anti-paperclip 'infohazard'.
That depends entirely on what the PM's code is. If it doesn't include input sanitizers, a buffer overflow attack could suffice as a basilisk. If your model of a PM basilisk is "Something that would constitute a logical argument that would harm a PM", then you're operating on a very limited understanding of basilisks.
Todays xkcd
I guess there'll be a fair bit of traffic coming from people looking it up?