False Outlook messages try to trick users into installing Trojan horse.

Security company Panda Security, via Panda Labs, said in a campaign that a fake Microsoft Update message that tries to trick Outlook users to installing a Trojan horse.

The message looks pretty real, but Microsoft or other companies, does not send any such messages to their customers, ie security updates via e-mail messages.

If the user runs the attachment in the e-mail message the computer will be infected with the Trojan horse Bredolab.Y Trojan, plus it will want to install a Security Tool said to be a fake antivirus program.