My version of sophus does the same, i was dubious when i installed it so i did it on my test machine but after looking for the files this trojan apparently installs i cant find any.
put mirc.exe in sophus' Exclude list & youll be fine.
Ohh & if sophus is crap why are so many leading companies using it?
heres a short list
Amerada Hess, Bank of England, BBC, Deutsche Apotheken und Ärztebank, GlaxoSmithKline, Harvard University, Interbrew, KPMG, Marks & Spencer, New York University, Orange, Oxford University, Royal Air Force, Sainsbury's, Siemens, Société Générale, Toshiba, University of California, University of Hamburg, Westfalenbank, WWF and Xerox Corporation.