mirror of
https://github.com/vxunderground/MalwareSourceCode.git
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TheDuchy
89 lines
8.3 KiB
NASM
89 lines
8.3 KiB
NASM
;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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; ;
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; ;
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; xxxxxxxxxxx xxxxxxxx xxxx xxxx xxxxxxxxxx xxxxxxxx xxxxxxxxx ;
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; xxxxxxxxxxxx xxxx xxxx xxxx xxxx xxxxxxxxxxx xxxxxxxxxx xxxxxxxxxxx ;
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; xxxx xxxx xxxx xxxx xxxxx xxxx xxxx xxxx xxx xxxx xxx xxxx ;
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; xxxx xxxx xxxx xxxx xxxxxx xxxx xxxx xxxx xxxx ;
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; xxxx xxxx xxxx xxxx xxxxxxx xxxx xxxx xxxxxxxx xxxxxxxxxx ;
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; xxxxxxxxxxx xxxx xx xxxx xxxx xxxxxxx xxxx xxxxxxxx xxxxxxxxxx ;
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; xxxxxxxxxxxx xxxx xx xxxx xxxx xxxxxx xxxx xxxxx xxxx xxxx ;
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; xxxx xxxx xxxx xxxx xxxx xxxxx xxxx xxxx xxxx xxxx xxx ;
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; xxxx xxxx xxxx xxxx xxxx xxxx xxxxxxxxxxx xxxxxxxxxx xxxxxxxxxxx ;
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; xxxx xxxx xxxx xxxx xxxx xxxx xxxxxxxxxx xxxxxxxxx xxxxxxxxxxx ;
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; ;
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; ;
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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; ;
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; RAndom Numbers Generator ;
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; ;
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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; ;
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; :)! ;
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; ;
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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; ;
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; функция RANG32 ;
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; ГЕНЕРАТОР СЛУЧАЙНЫХ ЧИСЕЛ (ГСЧ) ;
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; ;
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; ;
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;ВХОД: ;
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;1 параметр - число (N). Будет произведен поиск случайного числа в диапазоне [0..N-1] ;
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;--------------------------------------------------------------------------------------------------------;
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;ВЫХОД: ;
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;EAX - слуяайное число в диапазоне [0..N-1] ;
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; ;
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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; ;
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; y0p! ;
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; ;
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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; ;
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; ФИЧИ ;
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; ;
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;(+) базонезависимость ;
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;(+) прост в использовании ;
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;(+) не использует WinApi'шек ;
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; ;
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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; ;
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; ИСПОЛЬЗОВАНИЕ: ;
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; ;
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;1) Подключение: ;
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; rang32.asm ;
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;2) Вызов (пример stdcall): ;
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; push 5 ;кладем в стэк число ;
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; call RANG32 ;вызываем ГСЧ -> в EAX после вызова будет значение [0..5-1] ;
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; ;
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
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;m1x
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;pr0mix@mail.ru
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;EOF
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RANG32:
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pushad ;сохраняем регистры
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mov ecx,dword ptr [esp+24h] ;ecx=число, что передали в стэке
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db 0fh,31h
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imul eax,eax,1664525 ;идут разные вычисления для получения
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add eax,1013904223 ;более случайного числа
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add eax,edx
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adc eax,esp
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rcr eax,16
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imul eax,[esp+32]
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xor edx,edx
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mul ecx ;mul действует как div
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mov dword ptr [esp+1ch],edx
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popad
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ret 04
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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;конец функции RANG32
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;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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