There is no reason to get rid of  Trojan-keylogger.WIN32.Fung, because, as far as now, such virus has not yet been observed. Quite opposite to this you need to remove Trojan-keylogger.WIN32.Fung pop-up source which is a trojan, as well as to remove Personal Defender 2009 and other malware associated with Trojan-keylogger.WIN32.Fung pop-up as such malware [...]

Source: http://hands-oncorp.com/2008/11/03/trojan-keyloggerwin32fung-removal-instructions/