Virus Database

April.748

Description April.748

This is a benign memory resident encrypted parasitic virus that hooks INT 21h, and writes itself to the end of EXE files that are executed or opened. If a date and month are equal in number, e.g., January 1, February 2, etc, the virus also hooks INT 1Ch (timer), and in time, displays the following message:
Virus April - 1st version - Copyright (C) 1.4.1994
I look forward to meet with you again.
Yours sincerely VirSoft Blansko - Czech Republic

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Kurgan.919

Description Kurgan.919

These are not dangerous memory resident parasitic viruses. They hook INT 1Ch, 21h and write themselves to the end of COM and EXE files that are executed or opened. The length of COMMAND.COM file does not grow, these viruses write themselves at the zero-bytes area to the end of that file (see Lehigh virus). They contain the text "command". By hooking INT 1Ch they manifest themselves by different manners:
"Kurgan.919" changes keyboard flags;
"Kurgan.948" alters text symbols on the screen;
"Kurgan.1624,1654" drop the letters on the screen as "Cascade" virus does.

Kurt.704

Description Kurt.704

This is a dangerous non-memory resident parasitic virus. It searches for COM files, then writes itself to the end of the file. The virus deletes the CHKLIST.MS and ANTI-VIR.DAT files. On the 5th of April, the virus creates the A:LEER.ME file, writes the text string into there, and displays the same string:
KURT COBAIN Virus v0.3 pre_ß testing
1994(w) TruchoSoftware - Argentina

The virus also contains the text strings:
chklist.ms anti-vir.dat
A:LEER.ME A:

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