These are not dangerous memory resident polymorphic parasitic viruses. They hook INT 21h and write themselves to the beginning of COM and EXE files that are executed. They display the message and halt PC:
"Mte-Small.Mega":
FORMULA 1: I love this competition. Coulthard will be the winner.
"Mte-Small.Sepultura":
Virus is dedicated
in memory of my friend Igor.
CHAOS A.D.
The viruses also contain the text strings:
"Mte-Small.Mega":
MEGADETH
MtE-small by Keith Timmons.
MetallicA
