(c)Brain (the industry standard name being Brain) is a 1986 computer virus that infects DOS File Allocation Table file systems. The virus is also known as Lahore, Pakistani, Pakistani Brain, and UIUC. Businessweek magazine at the time called the virus the Pakistani flu. Comparative brain sizes In animals, the brain, or encephalon (Greek for in the head), is the control center of the central nervous system. ... 1986 (MCMLXXXVI) was a common year starting on Wednesday of the Gregorian calendar. ... In computer security technology, a virus is a self-replicating/self-reproducing-automation program that spreads by inserting copies of itself into other executable code or documents. ... ‹ The template below has been proposed for deletion. ... File Allocation Table (FAT) is a patented file system developed by Microsoft for MS-DOS and is the primary file system for consumer versions of Microsoft Windows up to and including Windows Me. ... BusinessWeek is a business magazine published by McGraw-Hill. ...

(c)Brain is a boot virus that moves the boot sector and replaces it with a copy of the virus. The real boot sector is moved to another sector and marked as bad. Infected disks have 3kb of bad sectors. The Disk label is also changed to (c)Brain, and the following text can be seen in infected boot sectors: In computer security technology, a virus is a self-replicating program that spreads by inserting copies of itself into other executable code or documents. ... The boot sector is a region (typically the first 512 bytes) of a hard disk, floppy disk, or similar data storage device, or a partition thereof. ...

Welcome to the Dungeon (c) 1986 Brain & Amjads (pvt) Ltd VIRUS_SHOE RECORD V9.0 Dedicated to the dynamic memories of millions of viruses who are no longer with us today - Thanks GOODNESS!! BEWARE OF THE er..VIRUS : this program is catching program follows after these messages....$#@%$@!!

There are many minor and major variations to that version of the text. The virus slows down the floppy disk drive and makes 7KB of memory unavailable to DOS. (c)Brain was written by two brothers, Basit and Amjad Farooq Alvi, who lived in Chahmiran, Lahore, Pakistan. The brothers told TIME magazine they had written it to protect their medical software from software pirates. The virus was supposedly going to target copyright infringers only. A floppy disk is a data storage device that is composed of a ring of thin, flexible (i. ... The Minar-e-Pakistan represents Pakistani independence The Hazuri Bagh, looking towards the Roshnai Gate The Hazuri Bagh, looking towards the Roshnai Gate in 1870 Lahore (Urdu: لاہور) is a major city of Pakistan and is the capital of the province of Punjab. ... A pocket watch. ...

The virus came complete with the brothers' real address and three phone numbers, and a message that said the user's machine had been infected and for inoculation the user should call them:

Welcome to the Dungeon (c) 1986 Basit * Amjad (pvt) Ltd. BRAIN COMPUTER SERVICES 730 NIZAM BLOCK ALLAMA IQBAL TOWN LAHORE-PAKISTAN PHONE: 430791,443248,280530. Beware of this VIRUS.... Contact us for vaccination...

When the brothers began to receive a large number of phone calls from people in USA, Britain, and elsewhere, demanding them to disinfect their machines, the brothers were stunned and tried to explain to the outraged callers that their motivation had not been malicious. They ended up having to get their phone lines cut off and regretted that they had revealed their contact info in the first place. The brothers are still in business in Pakistan as internet service providers in their company called Brain Limited. An Internet service provider (ISP, also called Internet access provider) is a business or organization that offers users access to the Internet and related services. ...

Ashar is an older version of Brain. There are six variants where the message is different.

See also

• notable computer viruses and worms

This is a list of noteworthy computer viruses and worms. ...

External links

• Story of the virus from Brain Limited - This link has the actual message of the virus, complete with the phone numbers, etc.
• Description of (c)Brain at F-Secure site