Bulk Wiki Attacker Block-O-Mat 2 is a tool to block identified botnet IPs across multiple wikis. It's likely to be superceded in the near future.
The original BWABOM was a client side script that did not directly interact with any wikis at all. It created a local web page that then required the user to do a whole bunch of mouse clicking. Not a lot of code from this version remains in BWABOM2.