Shareaza.com has been hijacked by scammers and is now serving a malware instead of the original program in garb of the popular P2P client. Shareaza authors are trying to regain the control but have not been able to fight back so far :O
Shareaza.com Hijacked and Turned Into a Scam Site | TorrentFreak
Shareaza.com Hijacked and Turned Into a Scam Site | TorrentFreak