97, 2/5 ȸ¿ø°¡ÀÔ  ·Î±×ÀΠ 
   skyclad1975
   gdb ¿¡¼­ display·Î º¯¼ö¸¦ º¸´Â °Í¿¡ ´ëÇÑ Áú¹®

http://www.hackerschool.org/HS_Boards/zboard.php?id=QNA_Reversing&no=85 [º¹»ç]


Áú¹® ¿Ã¸®°í ´äº¯ ¹ÞÀºÁö ¾ó¸¶ µÇÁöµµ ¾Ê¾ÒÁö¸¸ ¶Ç ³­°ü¿¡ ºÀÂøÇÏ¿© Áú¹®µå·Áº¾´Ï´Ù.

display¸¦ º¯¼ö³ª ·¹Áö½ºÅÍ¿¡ °É¾î µÎ¸é ni µîÀ¸·Î ½ÇÇàÇÒ ¶§¸¶´Ù °è¼ÓÇؼ­ ±× °ªÀÌ ³ªÅ¸³­´Ù°í ¾Ë°í Àִµ¥¿ä, $rbp-0x4 º¯¼öÀÇ º¯È­¸¦ ¾Ë±â À§ÇØ display¸¦ °É¾ú´õ´Ï


(gdb) x/d $rbp-0x4
0x7fffffffe38c:        2
(gdb) display /d $rbp-0x4
7: /d $rbp-0x4 = 140737488348044



ÀÌ·± ½ÄÀ¸·Î ³ªÅ¸³³´Ï´Ù.
¾î¶»°Ô ÇØ¾ß ÇÒ±î¿ä?

±×³É º¸±â À§ÇØ x/d $rbp-0x4 ¸¦ ÇßÀ» °æ¿ì¿¡´Â Àß µÇ´Âµ¥,
display ÇßÀ» ¶§¸¸ ÀÌ·¯³×¿ä.

¶Ç, watch $rbp-0x4 ¸¦ ÀÌ¿ëÇؼ­ µ¹·Á ºÃ´õ´Ï


Old value = (void *) 0x7fffffffe38c
New value = (void *) 0x7fffffffe6f7


ÀÌ·¸°Ô ³ª¿É´Ï´Ù.

Á¦´ë·Î 10Áø¼ö·Î º¯¼öÀÇ °ªÀ» º¸·Á¸é ¾î¶»°Ô ÇØ¾ß ÇÒ±î¿ä...

ÇØÄ¿½ºÄð ´É·ÂÀںеé, ºÎŹµå¸³´Ï´Ù!



+ Ãß°¡Áú¹®)

gdb»ó¿¡¼­ ½ºÅà ³»ºÎÀÇ °ªÀ» º¸´Â ¹æ¹ý¿¡ ´ëÇؼ­µµ ¾Ë·ÁÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù ²þ..

  Hit : 2923     Date : 2014/12/11 04:54



    
cd80 x/d $rbp-4´Â $rbp-4°¡ °¡¸£Å°´Â ÁÖ¼ÒÀÇ µ¥ÀÌÅ͸¦ decimal·Î ³ªÅ¸³»¶õ ¸í·ÉÀÌ°í
disp /d $rbp-4´Â $rbp-4¶ó´Â ½ÄÀ» decimal·Î ³ªÅ¸³»¶õ ¸í·ÉÀÔ´Ï´Ù
disp/wd $rbp-4 ·Î ÇÏ½Ã¸é ¿øÇϽô´ë·Î ÇϽǼö ÀÖ½À´Ï´Ù
2014/12/12  
77   and esp, 0fffffff8[3]     choboKing
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76   ida string window °ü·Ã ¹®Á¦[2]     heartbits
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75   ¹®ÀÚ¿­À» ¹®ÀÚ¿­·Î ³ª´©´Â°Ô ¾î¶² Àǹ̰¡ ÀÖÀ»±î¿ä?     swkim306
03/11 2962
74   ¾È³çÇϼ¼¿ä. ¾ÕÀ¸·ÎÀÇ Áø·Î¿¡ ´ëÇؼ­ ¿©Âã°íÀÚ ÇÕ´Ï´Ù!     rlaghals4
06/26 2751
73   °ÔÀÓ Æ®·¹ÀÌ³Ê °°Àº°Ç ¸®¹ö½Ì Çؼ­ ¸¸µç°ÍÀΰ¡¿© ?[1]     nouna12
05/23 4031
72   ¸®¹ö½Ì ÇÏ·Á¸é À©µµ¿ì ÇÁ·Î±×·¡¹Öµµ ¹è¿ö¾ß Çϳª¿ä?[2]     cji2
05/20 4074
71   ÀÇ·ÚÁ» ºÎŹµå¸±·Á±¸ ÇÕ´Ï´Ù.     vbvb92
05/14 2750
70   ollydbg ÆĶó¹ÌÅÍ ³Ö´Â ¹ý[2]     skyclad1975
02/08 4830
69   ¸®¹ö½ÌÀÇ·ÚÇÏ·ÁÇÕ´Ï´Ù[1]     eastgm
01/31 3552
68   À©µµ¿ì ¸®¹ö½Ì°ú ¾Èµå·ÎÀÌµå ¸®¹ö½Ì..[1]     hallohackers
01/26 3231
67   DWORD PTR SS ¿Í DWORD PTR DS[1]     skyclad1975
01/24 5766
66   entry point alert ¿¡·¯Á» ¾Ë·ÁÁÖ¼¼¿ä..     psy2815
12/28 4016
65   dll ¸®¹ö½Ì ÇÒ ¶§ ÁÖ¼Ò °è»ê¹ý Áú¹®ÀÌ¿ä¤Ð![3]     spe
12/26 3875
  gdb ¿¡¼­ display·Î º¯¼ö¸¦ º¸´Â °Í¿¡ ´ëÇÑ Áú¹®[1]     skyclad1975
12/11 2922
63   ¸®¹ö½Ì(¾î¼Àºí¸®¾î) ±âÃÊ Áú¹®Á» µå¸®°Ú½À´Ï´Ù[2]     skyclad1975
12/10 3246
62   ¸®¹ö½Ì,Å©·¢ ÀÇ·ÚÇÕ´Ï´Ù[2]     inx123
11/27 4249
61   ¾ðÆÐÅ· °ü·Ã Áú¹®ÀÔ´Ï´Ù2     spe
11/09 3922
60   ¾ðÆÐÅ· °ü·Ã Áú¹®ÀÔ´Ï´Ù.     spe
11/09 3036
59   ¸®¹ö½Ì Ãʺ¸ÀÔ´Ï´Ù. IDA¿¡ ´ëÇÑ Áú¹®ÀÖ½À´Ï´Ù.[3]     shdac
10/29 3770
58   ¸®¹ö½º ¿£Áö´Ï¾î¸µ ¹ÙÀ̺íÀ» Àдٰ¡ ±Ã±ÝÇÑ Á¡ÀÌ »ý°å´Âµ¥¿ä¤Ð![1]     tjswn7051
10/14 3454
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