I don't really know what causes a ddos attack, but I do know it won't take much to give someone a reason to do it. Do a channel list search on efnet and check out #gigenet. These morons from this ISP even admit in the topic to allowing ddos attacks from their servers. #gigenet 15 Get a shell account...

I'm tired of changing my bots nicks just so admins can kill the nick to take it. screw this server, there are better ones out there!!!!!!!!!!!!!!!!!!!!!!!!

Oh ok, +w mode in mirc, thanks seiki....

This is the wallop that i got from mirc.

[11:20] !! !ircd.efnet.no! Remote CONNECT efnet.cs.hut.fi 6667 from einride
[11:46] !! !hub.dk! Remote CONNECT *.fi 6667 from taliz