This is what
Look these things up on www.symantec.com
CLick the search button on their home page and type in the offending article.
This particular one looks like fun!
"Trojan.Aduent is a Trojan Horse that installs adware and configures itself as a plug-in for Internet Explorer. It also creates shortcuts to pornographic material in different folders."
Get a good firewall and antivirus and USE THEM.