Antivirus software maker Sophos today discovered attackers have launched a Web campaign of their own that aims to exploit the senator's presidential victory. And it's rather nasty.

According to Sophos, this malware may have reached as much as 80% of all of the malicious spam that flowed through Sophos Labs today.

According to the company, targeted users first get a spam e-mail proclaiming the Obama win, and it asks users to visit a bogus election results Web site. Users are then asked to download what looks to be a movie to watch Obama's "amazing speech." Instead of a video of Obama's speech in Chicago last night, visitors are instead infected with a Trojan horse/backdoor which can be remotely controlled by the attacker.

In an e-mail to InformationWeek, a Sophos spokesperson also noted that the malware:

• Contains rootkit technology to conceal itself
• Is designed to steal information from an infected computer
• Also has general "backdoor" functionality
• Spies on user's keyboard and mouse inputs and can take screenshots
• Looks for passwords

It submits the information it needs to a Web server located in Kiev, Ukraine.

Sophos has more information here, on its research blog.