Andry.565
Description Andry.565
Harmless memory resident virus. It hooks INT 21h and writes itself to the end of executed COM files. Makes no indications of itself on an infected system. Contains a string:
ViRuZ by Andry Christian
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TEH.647
Description TEH.647
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of .COM files that are executed. It contains the text string:
TEH
Telefonica Family
Description Telefonica Family
These are very dangerous viruses. They hit .COM- and .EXE-files being started or opened (by standard way), MBR of hard disk while an infected file is started and Boot-sectors of floppies while DOS access to them. The viruses are encoded in an infected files. During installation the infectors traces INT 13h, 21h, 40h and hooks INT 21h. The viruses contain more than 10 handlers of INT 21h into their bodies. The viruses contain the texts like a:
"(C) 1990 Grupo HOLOKAUSTO (Barcelona, Spain) Kampaña Anti-TELEFONICA: Mejor
servicio, Menores tarifasall";
"Virus Anti - C.T.N.E. (c)1990 Grupo Holokausto.
Kampanya Anti-Telefonica.
Menos tarifas y mas servicio.
Programmed in Barcelona (Spain).
23-8-90. - 666 -"
The part of viruses is wrote to MBR infects after only sectors and have no possibility to infect files. After 190hth booting from infected disk the infector erases the disk sectors and then type: "Campaña Anti-TELEFONICA (Barcelona)".
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