AntiFort.1110
Description AntiFort.1110
This is a very dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. While executing a file with the name F77*.*, the virus deletes that file. On Mondays, the virus writes the following string to the end of the C:AUTOEXEC.BAT file:
@ECHO Y | FORMAT D:
On Tuesdays, the virus modifies the Interrupt Timer by writing to the timer ports. The virus also contains the internal text strings:
ANTI FORTRAN OF OVER-X
C:AUTOEXEC.BAT
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Steppan.736
Description Steppan.736
It is not a dangerous memory resident parasitic virus. It hooks INT 1Ch,21h and writes itself to the end of .COM files that are executed or opened. The virus "disables" Left-Shift key. Depending on its counter it displays the message:
Your PC is infected with DEATH virus - greeting from Steppan
The virus also contains the text strings:
Death
COMSPEC
Steppen.428
Description Steppen.428
It is a harmless nonmemory resident parasitic virus. It searches for COM and EXE files in current and parent directories, then writes itself to the end of the file. The virus contains the text string:
[Steppenbrand]
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