Symantec, an Internet security company has come up with a list of 100 dirtiest sites and called them "worst of the worst" websites.

As per Symantec's claims about 48% of these websites, which could infect your computer with malware, use porn to attract people.

So, more than half of the websites cover a wide range of other categories such as legal services, catering, and shopping, figure skating and so on.

The company found that sites included in the dirtiest list have 18,000 threats per site on an average.

However, 40% of these dirtiest sites have more than 20,000 threats.

Rowan Trollope, VP of Symantec consumer business said, "Armed with this information, consumers are empowered to make informed decisions about which sites to visit."

List of dirtiest websites includes schoolbad, firstsexyteen and cheatsarchive.

Cybercriminals can take control of one's computer and access one's personal data via malicious software.