Hard core prOn invasion on Google Groups

e’ve just started seeing a hard-core porn invasion on Google Groups.

So far, we have identified approximately 270 Google Groups pages with this porn.

List here (pdf).

images below, offensive content has been obfuscated.

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These pages push other porn pages for profit. While not all of the redirects go to malware sites, we did observe some redirects to a site which ultimately pushes a fake codec trojan, which if installed, results in a VirusHeat infection.

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We have alerted Google to the presence of these pages.