Zwickau.505
Description Zwickau.505
It is not a dangerous memory resident parasitic virus. It hooks INT 21h. On file creating, opening (FCB) or executing, the virus searches for .EXE files in the current directory and writes itself to the end of the file. On the 5th of any month the virus displays the message:
GRUESSE AUS ZWICKAU
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Licei.1500
Description Licei.1500
This is a dangerous memory-resident encrypted, stealth parasitic virus. It hooks INT 21h, and writes itself to the end of COM and EXE files that are accessed. Upon starting from a file in one case in 12, the virus displays a message in Russian. The virus periodically disables the keyboard.
Lichen.1024
Description Lichen.1024
It is not a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. In one month after infecting the virus also hooks INT 8,9 and manifests itself by a video effect.
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