mktemp () > write ( f, 'FLAG \n ' ) > run_assembly ( shellcraft. Opens a file and writes its contents to the specified file descriptor. Port is the TCP port to listen on, network is either ‘ipv4’ or ‘ipv6’. Listens on a TCP port and spawns a shell for the first to connect. Shellcraft module containing THUMB shellcodes for Linux. stack_allowed ( bool) – Can the stack be used?.reg_context ( dict) – Desired register context.(i.e., given eax=1,ebx=eax, set ebx first). Sets multiple registers, taking any register dependencies into account setregs ( reg_context, stack_allowed=True ) ¶ ret ( return_value=None ) ¶Ī single-byte RET instruction. NULL termination is normalized so that each argument array ( bytes, str, list) – Single argument or list of arguments to push.reg ( str) – Destination register to hold the pointer. Pushes an array/envp-style array of pointers onto the stack. rstrip ()) push > print ( enhex ( asm ( shellcraft. Value ( int, str) – The value or register to push Means that this shellcode can change behavior depending on the value of If src is a string, then we try to evaluate with context.arch = ‘thumb’ using Pushes a value onto the stack without using Pop all of the registers onto the stack which i386 popad does, rstrip ()) mov r1, #(PROT_READ | PROT_WRITE | PROT_EXEC) /* 7 */. mov ( 'r1', 'PROT_READ | PROT_WRITE | PROT_EXEC' ). rstrip ()) mov r1, #(SYS_execve) /* 0x3b */ > with context. rstrip ()) mov r1, #(SYS_execve) /* 0xb */ > with context. word 0xdead00ff value_._after: > with context. rstrip ()) mov r1, #0x200 > print ( shellcraft. rstrip ()) /* moving r1 into r1, but this is a no-op */ > print ( shellcraft. rstrip ()) mov r1, #0x11 > print ( shellcraft. rstrip ()) mov r1, #0xa + 1 sub r1, r1, 1 > print ( shellcraft. rstrip ()) eor r1, r1 > print ( shellcraft. rstrip ()) mov r1, r2 > print ( shellcraft.
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