Later.981
Description Later.981
This is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the beginning of COM and to the end of EXE files that are executed or opened. While installing into the memory, before return to the host program this virus disinfects the host file. If an installed DOS have version is lesser that 3.0, the virus displays:
This program required MS-DOS 3.00 or later
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Scoundrel
Description Scoundrel
It is not a dangerous memory resident parasitic polymorphic virus. It traces and hooks INT 21h, then it infects COM and EXE files that are accessed. On renaming, opening, loading into the memory (function 4B01h) the virus temporary disinfects the infected files. Sometimes it displays the message:
SoftPecker v.1 (C) 1992 by ScoundrelSoft - 'Your pleasure is our business'
Scratch.554
Description Scratch.554
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. It uses the word at the address 0000:0415 (scratch pad for manufacturing error tests) as ID-word while installing its TSR copy.
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