Virus Database

Devices.2000

Description Devices.2000

It is a harmless memory resident parasitic polymorphic virus. It writes itself to beginning of SYS and to the end of EXE files. While executing an infected EXE file the virus opens the C:CONFIG.SYS file, scans it for the names of device drivers, infects them and returns to the host program. While infecting a SYS file the virus creates the temporary file DEVICES.$$$, writes its code to that file, appends the code of the SYS file, then deletes the SYS file and renames DEVICES.$$$ to the original name of infected SYS file.
While loading an infected SYS file the virus installs itself into the system memory as device driver, hooks INT 1Ch, waits for some time, then hooks INT 21h and while accessing to floppy disks searches and infects EXE files.
The virus contains the text strings:
XMSXXXX0
:devices.$$$ config.sys *.exe

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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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Disillu.341

Description Disillu.341

This is a benign memory resident parasitic virus. It hooks INT 21h, and writes itself to the beginning of COM files.
It infects files that are executed. It does not manifest itself in any way.

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