Virus Database

Disillu.1108

Description Disillu.1108

This is a benign memory resident parasitic virus. It hooks INT 21h, and writes itself to the beginning of COM files.
It is an encrypted virus. It traces INT 13h and 21h to obtain their original addresses, and uses these addresses while infecting. It infects the files that are executed or opened, it does not infect the COMMAND.COM file. From April 5th until the 9th, it displays the following message:
Your Computers Just A
Microscopic Cog,
In My Catastrophic Plan.
Designed and Directed -
By My Red Right Handall.
[DïSiLLüSìöNïS_] by -=SÉpùL_ürÆ=-
Dedicated To Kurt Cobain,
1967 - 1994.
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Akuku.886

Description Akuku.886

This is a not dangerous non-memory resident parasitic virus. On execution it searches for COM and EXE files and writes itself at the file ends.
The viruses display the messages:
A kuku, Nastepny komornik !!!

Alabama

Description Alabama

It is a very dangerous resident virus. It affects .EXE-files in the current disk directory, where a file is being run from or opened in. An infected file is being searched by the FindFirst and FindNext functions and not necessarily coincides with a file being opened or executed. On infecting, "Alabama" uses FCB-functions for work with files, appends to the file end; incorrect infection is possible. In an infected file the time of last modification is set to 62 seconds.
This infector tries to "survive" a reboot - for this purpose it sets INT 9h (keyboard), hooks the Alt-Ctrl-Del combination, then turns off the screen and calls the boot procedure (INT 19h). During this operation the codes of the virus are not erased.
Depending on the current time "Alabama" might displays the messages:
+-----------------------------------------------------+
¦ SOFTWARE COPIES ARE PROHIBITED BY INTERNATIONAL LAW ¦
¦ ¦
¦ Box 1055 Tuscambia ALABAMA ¦
+-----------------------------------------------------+

The virus hooks INT 9, 21h, contains the text string "????????EXE" and doesn't have destructive functions. But it works incorrectly with files and the memory - might hang up the system.

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