Guess I am a little bit late but just found out about this.
Mac Malware
Luckily, I don't use Safari and I like to think that I am smart enough to let random downloads off the internet install on my computer. However, I did do a quick look in my downloads folder and found anti-malware.zip which contains the MacSecurity app which is a tiny bit scary.
Just thought I would let others know in case it is still a threat.