Forums General Discussion mIRC files in C:\winnt\system32\drivers - trojan?

i know those files
they are use for an xdcc bot called iroffer 1 of the most used fileserver bot that is
with other words you where hacked and use as an xdcc bot
some virus scanner will see it as a trojan but it isnt a trojan

to prevent this from happening again do as rockhond said
use a firewall and use not easy to crask passwords