http://paktribune.com/news/index.php?id=118336
Koran-Quoting Trojan Blocks Access To Porn Sites
Wednesday September 07, 2005 (0729 PST)
A trojan spotted by anti-virus outfit Sophos tries to stop users from viewing porn by interspersing a quote from the Koran.
Instead of snooping for sensitive financial information or taking control of a computer, the Trojan, called Yusufali-A, monitors Web surfing habits. When it spots an objectionable term such as "sex" or "exhibition", in the browser's title bar, it hides the website and instead pops up a message from the Koran.
"Allah knows how ye move about and how ye dwell in your homes," reads part of the message, said Gregg Mastoras, a senior security analyst with Sophos.
If the user does not get the message the worm delivers, a button appears forcing the user to log off or shut the computer. The worm is not that common, says Sophos.