KoKo PC Virus

KOKO Virus is a memory resident parasitic virus created on March 1991.It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. On July, 29th and February, 15th it displays a message and erase the disk sectors, and the next day every thing go back to normal. The message of infection is:

Stop Keyboard ClickingKoKo is Sleeping in Your PC. !To Scan & Clean Call, [http://en.wikipedia.org/wiki/Adham_Hammam Adham H. Hammam] Fax & Phone (20) 066 - 261841

In 1991, an Egyptian Engineer Developed the virus for testing& research purposes,become the first Virus Creator in Middle East for EXE & COM TSR Virus over DOS and workgroup windows, after a straight order from the government he release the anti-virus (AAV"Adham Anti Virus").the virus spreader fast and easily and it became one of the famous names KOKO in Memory resident Viruses.

KOKO's name came from the Creator himself, which was his nick name used by his friends in 1991.

Sources

* [http://www.virus-database.com/description/2107-koko.1780.html Virus database]
* [http://www.w3privacy.com/viruses/index.php?a=listing&id=2105 W3 Privacy web site]
* Adham Hammam