97, 3/5 ȸ¿ø°¡ÀÔ  ·Î±×ÀΠ 
   kumi123
   Æ÷¸Ë½ºÆ®¸µ °øºÎÁß ±Ã±ÝÇÑ°ÍÀÌ Àִµ¥¿ä.

http://www.hackerschool.org/HS_Boards/zboard.php?id=QNA_Reversing&no=57 [º¹»ç]


a=10;
printf("%d", a);

À̶ó´Â ÇÔ¼ö°¡ ÀÖ´Ù¸é..

½ºÅÿ¡

"%d"              ---- ³·Àº
a
printf()
sfp
ret               ---- ³ôÀº

ÀÌ·¸°Ô ½×ÀÌ Àݾƿä..

¿©±â¼­ Æ÷¸Ë½ºÆ®¸µÀº esp+4¸¦ ÇÑ °ªÀ» ÂüÁ¶ÇÑ´Ù°í ¾Ë°í Àִµ¥..

a=10, b=20
printf("%d %d", a, b);

¶ó¸é

½ºÅÿ¡

"%d %d"
a
b
printf()
sfp
ret

ÀÌ·±¼øÀ¸·Î ½×ÀÏÅÙµ¥.....

Æ÷¸Ë½ºÆ®¸µÀÌ esp+4 ¾¿ Áõ°¡ÇÑ °ªÀ» ÂüÁ¶ ÇÑ´Ù°í ¾Æ´Âµ¥..

µÎ°³ÀÎ °æ¿ì¿¡´Â ¾î¶°Çì ÂüÁ¶Çմϱî??

  Hit : 3319     Date : 2013/04/05 01:14



    
57   ¾î¼Àºí¸®¾î °øºÎ ÇÒ‹š¿ä ~~~[2]     gadia1
07/04 3466
56   ÇÁ·Î±×·¥ ƯÁ¤ ¿µ¿ª ½ÇÇà °¨Áö.[2]     Einsteins
08/24 3447
  Æ÷¸Ë½ºÆ®¸µ °øºÎÁß ±Ã±ÝÇÑ°ÍÀÌ Àִµ¥¿ä.     kumi123
04/05 3318
54   ¿äÁò reverscore °Ô½ÃÆÇ º¸°íÀִµ¥..[4]     ¸Þ¹ö¸®Å°
08/08 3279
53   elf ¹ÙÀ̳ʸ® ÆÐÄ¡ Áú¹®...[2]     vngkv123
06/07 3279
52   ¸®¹ö½Ì(¾î¼Àºí¸®¾î) ±âÃÊ Áú¹®Á» µå¸®°Ú½À´Ï´Ù[2]     skyclad1975
12/10 3268
51   TranslateMessage ÇÔ¼ö¸¦ ¸¸³µÀ»¶§ ¾î¶»°Ô ÀԷ°ªÀ» Áà¾ß µÇ³ª¿ä?[3]     attainer
09/22 3256
50   À©µµ¿ì ¸®¹ö½Ì°ú ¾Èµå·ÎÀÌµå ¸®¹ö½Ì..[1]     hallohackers
01/26 3252
49   ¸®¹ö½Ì ¹®Á¦ Ǫ´Â Áß¿¡ ±Ã±ÝÇÑ Á¡ÀÌ ÀÖ½À´Ï´Ù.[5]     ansuz0710
08/10 3243
48   PE Viewer¿¡¼­ÀÇ Base of code¶û ollydbg¿¡¼­ÀÇ Base of codeÀÇ °ªÀÌ ´Ù¸¨´Ï´Ù.[1]     6¿ù
08/31 3214
47   ÀÚ±â¾ÐÃà½ÇÇàÈ­ÀÏ?? IDA³ª ¿Ã¸®µð¹ö±×·Î ±î¸é ¿£Æ®¸®Æ÷ÀÎÆ®°¡ ¾ø´Ù°í³ª¿É´Ï´Ù[4]     kywoo81
09/16 3213
46   [Ãʺ¸] ¸®ÅϾîµå·¹½º Áú¹®ÀÔ´Ï´Ù[2]     hjt7942
05/19 3182
45   ¸®¹ö½Ì °øºÎ µµÁß...[1]     whitetie
06/05 3123
44   Æ÷¸Ë½ºÆ®¸µ °ø°Ý Áú¹®[4]     sohun5013
01/11 3101
43   udd ÆÄÀÏÀ» ºÒ·¯¿ÀÁö ¸øÇÏ´Â ¹®Á¦[1]     Å×Ã÷
02/10 3091
42   ±Ã±ÝÇØ ¹Ìó¹ö¸®°Ú½À´Ï´Ù. Ã¥¿¡ ¼³¸íÀÌ ¾ø³×¿ä ¤Ð¤Ð[2]     6¿ù
08/31 3068
41   ¾ðÆÐÅ· °ü·Ã Áú¹®ÀÔ´Ï´Ù.     spe
11/09 3062
40   ¸®ÆÐŰ¡ÀÌ ¹«¾ùÀÌÁÒ?     Z2ong2
12/11 3059
39   Ǫ¸¥ÇϴôԲ² °³ÀÎÁú¹®....[2]     creamitation
06/20 3057
38   ¾ðÆÐÅ· Á» µµ¿ÍÁֽǺРÀÖÀ¸½Å°¡¿ä?     revers1ng
01/20 3049
[1][2] 3 [4][5]

Copyright 1999-2024 Zeroboard / skin by Hackerschool.org / Secure Patch by Hackerschool.org