You are most likely infected with a 'trojan' which is a type of infection on your computer. It is not a good thing to have. Read the instructions in the AKill message - as it says, go to those websites and download the suggested programs. Run them on your computer and clean yourself of any trojans you have.
When you download and install them, make sure you check for Updates with each program before running it to make sure you have the latest detection files. You can get other suggestions for scanning, and tips on staying safe in the future, in
this post - I highly recommend you read all of it
If you clean yourself of trojans/viruses, wait for 24-48 hours (1-2 days) and then try reconnecting. If you are STILL being akilled, try changing your IdentD and Full Name field. I don't know the exact detection methods DALnet uses, but you might try that.. use
/identd on New-Ident-Here (e.g. /identd on munky) and
/fullname New-Full-Name (e.g. /fullname Arnie).
If you have further issues, try contacting the
Exploits Team.
Good luck!
Regards,