Yusufali-A Trojan Worm Censors Adult Surfing with Koran Verses

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Yusufali-A is a new Trojan worm which is a bit unusual. Yusufali A pops up a verse from the Koran whenever the infected machine web surfs to a site with offensive content. Yusufali-A also blocks the offensive content from view by minimizing the browser window at the same time as it pops up the Yusufali verse.

Yusufali A apparently determines whether a site is “offensive” by comparing the words in the title of the page against its own list of offensive words, and if it finds one of the words it pops up its Yusufali verse.


The Koran verse it displays is partly in Arabic, and also includes some verse in English, which says “Yusufali: Know, therefore, that there is no god but Allah, and ask forgiveness for they fault, and for the men and women who believe: for Allah knows how ye move about and how ye dwell in your homes.”

If the offending web page is not closed, eventually Yusufali-A traps the mouse pointer in a box on the screen, and the only way to exit is to log out.

Said Graham Cluely of Sophos, “Unlike other malware, it appears that this Trojan isn’t trying to steal money or confidential information, but acts as a moral guardian instead, blocking the viewing of websites it determines as unsavoury. Of course, it’s possible for the Trojan to make mistakes and block sites that are not pornographic, such as medical sites or social sites designed for teenagers.”

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“Whatever the reasons behind its creation, computer users should protect their systems with up-to-date antivirus software, security patches and a proper firewall,” he added

No Paywall Here!
The Internet Patrol is and always has been free. We don't hide our articles behind a paywall, or restrict the number of articles you can read in a month if you don't give us money. That said, it does cost us money to run the site, so if something you read here was helpful or useful, won't you consider donating something to help keep the Internet Patrol free?
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2 thoughts on “Yusufali-A Trojan Worm Censors Adult Surfing with Koran Verses

  1. Yeah, riiight. That’ll stop the virus writers! Heh. Sorry, had to comment. I’m aethiest myself, but seriuosly, if religous faith works for someone else, then good on them.

  2. let shaitan take the soul of this worm writer to sheol to be the plaything of demons and the sport of ifrits until the end of time. may he never know aught but hunger and thirst all the days of his miserable life. may his wives be barren of sons that his name dies and is forgotten on the earth and may his daughters all lie with infidels. may all he sets his hand to become as ashes and dust blown upon the wind and may his grave become the abode of the unclean animal and his bones be soaked in their urine forever. this curse i lay upon him in the names of all gods, to dog his steps while he lives and follow him beyond the grave.

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