Many varients of "GTBOTS" & "Zombie Bots" are about.
To many to be listed to be honest
Many are detected as Aristotles
The trojan writers make small changes to many varients
I'll be highlighting on the current threats of "GTBOTS"
You'll need to do some searching here so get ready
Be sure Windows is NOT hiding files types before proceeding
The quickest way i've found in finding your hidden bot is:
Do a complete HD search for Mirc.ini
If you find one in a dir thats NOT Mirc related , you found the dir your bots in
Read Lockdowns site on GTbots , as well as interveiws with those well informed on GTbots and their behavior.
Lockdown and its GT Bot Cleaner
For some good info see Golcors page

• Locate hidden mirc.ini
  
• Locate the .exe thats running
  
• End task it and delete
  
• Remove the other related files