LptOff Family
Description LptOff Family
These are dangerous memory resident parasitic viruses. They hook INT 17h, 21h and write themselves to the end of COM files that are executed. These viruses disable printing. They contains the text strings:
"LptOff.256": (c) 1992 , éîÿ éî¿è îâô
"LptOff.271": Balashiha-2
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HS.1221
Description HS.1221
This is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files (except AIDSTEST.EXE) that are executed. On December, 27th it hooks INT 17h and prints the messages in Russian.
The virus contains the text string:
COMSPEC=
SNAIDSTESTCOMEXE
HS86.42 Ver 4.09.Copyright by EA computers inc.1994
HS.903
Description HS.903
This is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files (except AIDSTEST.EXE) that are executed. On December, 27th it erases the hard drive sectors. It also hooks INT 17h (printer) and sometimes prints rude messages in Russian.
The virus contains the text string:
SNAIDSTESTCOMEXE
HS86.2 Ver 4.06.Copyright by EA computers inc.1994
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