Macro.Word97.Myna
Description Macro.Word97.Myna
This is a family of Word97 macro viruses that are activated upon the opening of an infected document. Once activated these viruses disable Word's build-in anti-virus protection and then proceed to infect Word files that are subsequently created or opened.
Most of variants of this virus contain nothing except replication code, so they are not dangerous. In its code the virus contains the string:
"MYNAMEISVIRUS"
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Hdzz.566
Description Hdzz.566
It is a very dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of .COM files that are executed. On August, 1st it erases the disk sectors. The virus contains the text strings:
HDZZ
COMSPEC
Headache.269.a
Description Headache.269.a
These are harmless memory resident parasitic viruses. They hook INT 21h and write themselves to the end of .COM files that are closed. While infecting a file they use undocumented System File Tables.
"Headache.624" disinfect infected files, if they are opened. This virus contains the string:
Headache
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