ParityError Family
Description ParityError Family
These are very dangerous nonmemory resident parasitic viruses. They search for .COM files of the current directory, then write themselves to the end of the file. They contain the text "*.COM". They display the messages:
Water detected in math-co-processor
PARITY ERROR System halted
Something wonderful has happened, your PC is aliveall
and erase the disk sectors.
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Jocker.1371
Description Jocker.1371
It is a very dangerous memory resident parasitic virus. It traces and hooks INT 21h, then it writes itself to the end of COM and EXE files that are executed. The virus corrupts .BAS files, it writes the string "JOCKER" to the beginning of these files. The code of this virus to great extent repeats the code of the "Yankee" virus. The virus contains either "COMJOCKER" or "EXEJOCKER" text string depending on the format of infected file (COM or EXE).
Joe Family
Description Joe Family
These are nonmemory resident parasitic viruses. They search for .COM files and write themselves to the end of the file. They are related to the "Grog" viruses.
Joe.589
It is a harmless virus. While infecting it uses System File Tables. It contains the text strings:
Joe Anthro (C) '93 by GROG - Italy
Joe Anthro era un'autorita' sulla cultura egiziana e babilonese.
Il suo massimo risultato, tuttavia, era la sua famosa opera sulla
suinicultura.
Joe.1089
It is a dangerous polymorphic virus. If the length of the file that is infecting is lesser than 4 bytes, this virus overwrites it with the text:
+-[Grog]-¦
L'inverno era gia' tornato un'altra volta ed era tempo per Joe l'Esquimese
di ritirare le sue mucche polari.
Mentre usciva a cavallo dalla stalla, cominciavano a cadere i primi fiocchi
di neve.
Egli alzo' gli occhi al cielo grigio ardesia e rabbrividi'.
Ben presto fu una tormenta. Un vento ululante sbatteva la neve attraverso
la prateria desolata.
Joe l'Esquimese si piego' in avanti sulla sella e sollecito' la sua
cavalcatura a procedere fra i turbini di neve e l'urlo del vento.
This virus also contains the text strings:
*.?om
_/^\_ JoeLEsquimese (C) '93 by GROG - Italy _/^\_
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