test

chall link: https://static.cor.team/uploads/646804dc1464496e49422efa4ca83cf62f82f080e3d62a40f2188c97740d042d/m%3C3l.exe gef➤ x/60i 0x100054 0x100054: mov al,0x3 0x100056: xor ebx,ebx => 0x100058: mov ecx,0x100111 0x10005d: mov dl,0xff 0x10005f: int 0x80 # read(stdin, buffer=0x100111, count = 255) 0x100061: xor esi,esi 0x100063: cmp esi,0x12 0x100066: je 0x10007f # for loop that runs 0x12(18) times i think 0x100068: mov al,BYTE PTR [esi+0x100111] 0x10006e: rol al,0xd 0x100071: mov bl,BYTE PTR [esi+0x100210] 0x100077: cmp al,bl 0x100079: jne 0x100088 0x10007b: inc si 0x10007d: jmp 0x100063 0x10007f: mov WORD PTR ds:0x100234,0x1 # beginning of 18-time for loop 0x100088: mov ebx,0x1 0x10008d: mov eax,0x4 0x100092: cmp WORD PTR ds:0x100234,0x1 0x10009a: je 0x1000aa 0x10009c: mov ecx,0x100310 0x1000a1: mov edx,0xd 0x1000a6: int 0x80 0x1000a8: jmp 0x1000b6 0x1000aa: mov ecx,0x1002ae 0x1000af: mov edx,0x62 0x1000b4: int 0x80 0x1000b6: mov eax,0x1 0x1000bb: mov ebx,0x0 0x1000c0: int 0x80 0x1000c2: mov ah,0xa 0x1000c4: lea edx,[esi] 0x1000c6: adc DWORD PTR [edx],eax 0x1000c8: mov BYTE PTR [esi],0x11 0x1000cb: add bh,bh 0x1000cd: mov BYTE PTR [esi],0x12 0x1000d0: add bh,bh 0x1000d2: int 0x21 # exit/return i think - https://stackoverflow.com/questions/12591673/whats-the-difference-between-using-int-0x20-and-int-0x21-ah-0x4c-to-exit-a-16 0x1000d4: xor esi,esi 0x1000d6: cmp esi,0x12 0x1000d9: je 0x1000ec 0x1000db: mov al,BYTE PTR [ebx+edx1-0x75f2cbfe] 0x1000e2: pushf
0x1000e3: and al,BYTE PTR [ebx] 0x1000e5: cmp al,bl 0x1000e7: jne 0x1000f2 0x1000e9: inc esi 0x1000ea: jmp 0x1000d6 0x1000ec: mov DWORD PTR [esi],0x10334 0x1000f2: xor ebx,ebx 0x1000f4: mov ah,0x9 0x1000f6: cmp DWORD PTR [esi],0x34 0x1000f9: add eax,DWORD PTR [ecx] 0x1000fb: je 0x100107 0x1000fd: lea edx,[esi] 0x1000ff: lahf
0x100100: add ecx,ebp 0x100102: and DWORD PTR [esp+ecx2+0x168d21cd],esi 0x100109: ss add ecx,ebp 0x10010c: and DWORD PTR [esp+ecx*2+0xff21cd],esi