Intego identified yesterday the first ever Trojan virus for the Apple Macintosh. Associated Press quoted Ben Greenbaum, senior research manager at Symantec Security Response saying: “For a while Mac users have enjoyed the benefits of being a small enough population that hackers didn’t go after them directly – that’s obviously now changing.”

Apparently a fake codec is posted on a pornographic site pretending to be a video codec thus alluring victims into downloading it.

If the user authorizes the transaction the virus can redirect the victim’s browser to fraudulent websites and steal his information or passwords.

Let’s say that if a person that has the computer infected uses it and goes online to eBay or its Pay Pal electronic payment division he can be directed to a site that can extract personal information.

The attack needs the approval of the user to download it, then to enter the administrator password in order to continue. These operations raised warning among computer users.

Apparently this Trojan horse attack is a renewed version of a virus that has been around for a while.

Peter James, Intego spokesman said: “This is the first really malicious criminal malware (for Macs). We’ve seen some proof-of-concept malware, we've seen some worms, but this is different.”