:
"overwriting";
("parasitic");
- ("companion");
"link"-;
-;
, (OBJ), (LIB) .
Overwriting
: , . , . , . , " " .
overwriting- , DOS- NewEXE-. , DOS- .
Parasitic
, , . , ("prepending"), ("appending") ("inserting"). , - ("cavity''-).
-
"" , . , -, , .. .
-, DOS .-, , -. .. - -, , ., , XCOPY.EXE XCOPY.COM. - -. DOS -, .. , -. -, --.
, - , ( -) . , XCOPY.EXE XCOPY.EXD, XCOPY.EXE. , XCOPY, XCOPY.EXD. , , , - DOS, Windows OS/2.
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"Path-companion" , "" DOS PATH. , "" PATH (DOS, , -), - ..
-, .
Link-
Link-, - , "" . .
Link- - "Dir II". . , . , . , , , , .
(worms) , , -, - . - , - . , , INSTALL.EXE WINSTART.BAT.
-, , , (ARJ, ZIP ). "Arj Virus" "Winstart". - (. , "Worm.Info").
- . - , .
OBJ-, LIB-
, , , . . , OBJ- LIB-, . , , . "" - -, OBJ/LIB- . , : OBJ/LIB-, () .
. ( ) ( ). (. , "SrcVir", "Urphin").