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Universal Version(FAT BINARY) AppÀ» decryptÇÏ´Â ÀÌÇØÇϱâ~

ºÐ·ù: ¾ÆÀÌÆù
À̸§: ¹æÇö¿Àºü
Date: 2010-08-22 04:16Read: 3778
Link#1: http://v.daum.net/link/8914540
Link#2:
 

       



ÃÖ±Ù¿¡ ³ª¿Â ¾ÛµéÀÌ Universal¹öÁ¯ÀÔ´Ï´Ù.
armv6+armv7ÀÌ µÑ´Ùµé¾îÀִ°ÅÁÒ. OSXÀÇ ppc+intel·Î ÀÌÇØÇÏ½Ã¸é µË´Ï´Ù.
ÀÌÀ±~ ^^ iPhone3GS(ÀÌÇÏ iPod¹× iPhone)/iPhone4/iPad¶§¹®À̰ÚÁÒ~
±âÁ¸ÀÇ ¹æ½Ä¿¡ Ãß°¡°¡ µÇ´Â°Ì´Ï´Ù.
¸ÕÀú ¾ÛÀÌ FAT BINARYÀÎÁö ¾Æ´ÑÁö¸¦ È®ÀÎÇϸç Á¤º¸¸¦ ÃßÃâÇØ¾ßÇÕ´Ï´Ù.

¾ÆÀÌÆù¿¡¼­..
otool -f {Ÿ°Ù} // ¾ÆÀÌÆù¿¡ gdbÅøµéÀÌ ¼³Ä¡°¡ µÇ¾îÀÖ¾î¾ß ÇÕ´Ï´Ù. ¾ø´Ù¸é.."apt-get install gdb"À» ¾ÆÀÌÆù¿¡¼­ ½ÇÇà½ÃŰ¼¼¿ä.
¾ÆÀÌÆù Å͹̳ÎÀÇ À§Ä¡´Â /User/Applications/{ÇØ´ç¾ÛCODE}/ <- ¿©±â°¡ µÇ°ÚÁÒ.
±×¸®°í ¸¸¾à¿¡ ÇѱÛÀ̶ó¸é..
ls | grep .app | sed 's/^(.*).app//1/'
¸í·ÉÀ» ¼öÇàÇϼ¼¿ä
±×·³ È­ÀϸíÀ» Ãâ·ÂÇÕ´Ï´Ù.
..
otool -f {Ÿ°Ù} // À§ÇØ´ç À§Ä¡¶ó¸é XXX.app±îÁö Æ÷ÇÔÇØ¼­..
¿¹)
otool -f KB341204211341205263341204220341205241341204207341205242341206274341204217341205265341206274.app/KB341204211341205263341204220341205241341204207341205242341206274341204217341205265341206274


Fat headers
fat_magic 0xcafebabe
nfat_arch 2
architecture 0
    cputype 12
    cpusubtype 6
    capabilities 0x0
    offset 4096
    size 2127616
    align 2^12 (4096)
architecture 1
    cputype 12
    cpusubtype 9
    capabilities 0x0
    offset 2134016
    size 1879824
    align 2^12 (4096)

ÀÌ·¸°Ô Ãâ·ÂÀÌ µË´Ï´Ù.
¿©±â¼­ Á¤º¸´Â µÎ¹øÂ° architecture 1ÀÇ offset °ª~ 2134016 ÀÔ´Ï´Ù.

±×¸®°í ¿øº» ½ÇÇàÈ­ÀÏÀ» ÄÄÅÍ·Î °¡Á®¿É´Ï´Ù.
Áß¿äÇѰÍÀº ÃֽŠiPhone SDK°¡ ¼³Ä¡µÇ¾î ÀÖ¾î¾ß ÇÕ´Ï´Ù.
ÀÌÀ± armv6/armv7ÀÇ ¿µ¿ªÀÇ ÃßÃâÇϱâ À§ÇÔÀε¥..
¾ÆÀÌÆù3GS¿¡¼± armv7ÀÇ ¿É¼ÇÀÌ ¾ø½À´Ï´Ù~ ´ç¿¬ÇϰÚÁÒ?

Á¤È®È÷´Â ÀÌÇØ¸¦ ¸øÇϰÚÁö¸¸ ¾îÂîµÇ¾úµç ¸Þ¸ð¸®´ýÇÁ¸¦ À§ÇÑ ¿µ¿ª»çÀÌÁ ±¸Çϱâ À§Çؼ­~
lipo¸¦ ÀÌ¿ëÇØ ½ÇÁ¦¸Þ¸ð¸® »çÀÌÁ ±¸ÇÕ´Ï´Ù.

lipo {Ÿ°Ù} -thin armv7 -output armv7_thin

±×·³ ÇØ´çµð·ºÅ丮¿¡ armv7_thinÈ­ÀÏ »ý¼ºµË´Ï´Ù.

otool -l armv7_thin | grep crypt
cryptoff  4096
cryptsize 1175552
cryptid   1

¿©±â¼­ 1175552¸¦ Àû¾îµÎ¼¼¿ä.

ÀÌÁ¦ ¸Þ¸ð¸® ´ýÇÁ¸¦ ÇÕ´Ï´Ù.
´Ù½Ã ¾ÆÀÌÆù Å͹̳ηΠ°¡¼¼¿ä~
¸ÕÀú ÇØ´ç ¾ÛÀ» ½ÇÇàÇϽðí.. ƨ±âÁö ¾Ê°í °æ°í¸Þ¼¼Áö°¡ Ãâ·ÂµÈ »óŰÚÁÒ?(^^ ¹«½¼¸»ÀÎÁö ¾Æ½Ç²®´Ï´Ù)

Å͹̳ο¡¼­ ÇÁ·Î¼¼½º ¾ÆÀ̵𸦠±¸Çϼ¼¿ä.

ps ax | grep {Ÿ°Ù} // ¿©±â¼­ Ÿ°ÙÀº ½ÇÇàÈ­ÀÏ À̸§¸¸ÀÔ´Ï´Ù. À̸§ ±¸ÇϽô ¹ýÀº À§¿¡ ÀÖ°í.
¾Æ´Ï¸é ±×³É~
ps ax¸¸ Çϼŵµ ±¸ºÐÇÒ¼ö ÀÖµµ·Ï ¸®½ºÆ®¿¡ ³ª¿É´Ï´Ù.

  PID   TT  STAT      TIME COMMAND
    1   ??  Ss     0:05.78 /sbin/launchd
   12   ??  Ss     0:01.72 /usr/sbin/mDNSResponder -launchd
   13   ??  Ss     0:03.27 /usr/sbin/notifyd
   14   ??  Ss     0:00.41 /usr/sbin/syslogd
   15   ??  Ss     0:29.56 /usr/libexec/configd
   17   ??  Ss     0:01.96 /usr/sbin/BTServer
   18   ??  Ss     2:01.17 /System/Library/CoreServices/SpringBoard.app/SpringBoard
   19   ??  Ss     0:19.91 /System/Library/Frameworks/CoreTelephony.framework/Support/CommCenter
   24   ??  Ss     0:49.65 /usr/libexec/lockdownd
   27   ??  Ss     0:00.55 /usr/sbin/fairplayd.N88
   29   ??  Ss     0:02.42 /usr/bin/sbsettingsd
   31   ??  Ss     0:06.96 /usr/libexec/ptpd -t usb
   36   ??  Ss     0:07.46 /usr/sbin/mediaserverd
   37   ??  Ss     0:03.53 /usr/libexec/locationd
   39   ??  Ss     0:00.06 /usr/sbin/accessoryd
   52   ??  S      0:00.59 /usr/libexec/afcd --lockdown -d /var/mobile/Media -u mobile
   53   ??  S      0:33.08 /usr/libexec/afcd --lockdown -d /
   54   ??  S      0:00.41 /usr/libexec/afcd --lockdown -d /var/mobile/Media -u mobile
   55   ??  S      0:00.02 /usr/libexec/notification_proxy
  124   ??  Ss     0:01.56 /System/Library/PrivateFrameworks/ApplePushService.framework/apsd
  125   ??  Ss     0:00.21 /usr/libexec/lsd
  174   ??  Ss     5:26.84 //Applications/iFile.app/iFile_
  604   ??  Ss     0:02.25 /Applications/MobileMail.app/MobileMail
  605   ??  Ss     0:01.30 /Applications/MobilePhone.app/MobilePhone
  657   ??  S      0:00.55 /usr/sbin/sshd -i
  675   ??  Ss     0:01.30 /var/mobile/Applications/B01E4726-1FD6-41EA-91E9-FF49BE979A9D/KBM-aM^DM^IM-aM^EM-3M-aM^DM^PM-aM^EM-!M-
  658 s000  Ss     0:00.17 -sh
  676 s000  R+     0:00.00 ps ax

675¹øÀ̰ÚÁÒ?
ÀÌÁ¦ gdb¸¦ ½ÇÇàÇÕ´Ï´Ù.
gdb -p 675
(gdb) dump memory dump.bin 0x2000 {¿©±â¿¡ lipo¸¦ ÀÌ¿ëÇÑ ¸Þ¸ð¸®´ýÇÁ¿ë »çÀÌÁî°ª 1175552+8192¸¦ ´ëÀÔÇÕ´Ï´Ù. 16Áø¼ö·Î¿ä > 0x121000}
(gdb) quit
==========
16Áø¼ö°è»êÀº
OSXÀÇ °è»ê±â¸¦ ½ÇÇà½ÃÄÑ~
º¸±â¸Þ´º¿¡¼­ ÇÁ·Î±×·¡¸Ó·Î ¼±ÅÃÇÏ½Ã¸é µË´Ï´Ù.
==========
ÇØ´çµð·ºÅ丮¿¡ º¸½Ã¸é dump.binÀ̶ó°í »ý¼ºÀÌ µÇ¾îÀÖ½À´Ï´Ù.
ÀÌÁ¦ ¸Þ¸ð¸®´ýÇÁ´Â ¸¸µå¼ÌÀ¸´Ï~ ^^

dump.binÀ» ÄÄÇ»ÅÍ·Î º¹»çÇØ¼­ ¿øº»ÆÄÀÏ¿¡ µ¤¾î¾²¸é µË´Ï´Ù.
Áß¿äÇѰÍÀº µ¤¾î¾º¾îÁú ¿µ¿ªÁÖ¼Ò°ªÀÔ´Ï´Ù.

¿µ¿ªÁÖ¼Ò°ªÀº óÀ½¿¡ otool -f ·Î ±¸ÇѰª~ 2134016+4096ÀÔ´Ï´Ù.
¿ª½Ã³ª 16Áø¼ö°ª~ 0x20A000

ÄÄÇ»ÅÍ¿¡¼­ HEXÆíÁý±â·Î dump.binÀ» ¿©½Ã°í Àüü¸¦ Ä«ÇÇÇÕ´Ï´Ù.
±×¸®°í ¿øº»È­ÀÏÀ» ¿©½ÅÈÄ¿¡ ÁÖ¼Ò0x20A000 À§Ä¡¿¡ Ä¿¼­¸¦ µÎ½Ã°í OverWrite(µ¤¾î¾²¿ì±â)·Î ºÙ¿©³Ö½À´Ï´Ù.

ÃÖÁ¾À¸·Î cryptid°ªÀ» 1 > 0 À¸·Î º¯°æÇؾßÇÕ´Ï´Ù.
¹æ¹ýÀº ^^ °£´ÜÇÕ´Ï´Ù.
1175552°ªÀ» 16Áø¼ö·Î °è»êÇÕ´Ï´Ù.
0x11F000
11 <> F0ÀÇ À§Ä¡¸¦ ¹Ù²ß´Ï´Ù. F011ÀÌ µÇ°ÚÁÒ?
00F01100À» HEXÆíÁý±â¿¡¼­ HEX FIND(ÁÖ¼Ò°Ë»öÀÌ ¾Æ´Ô, ³»¿ë°Ë»ö)·Î °Ë»öÇÕ´Ï´Ù.
±×·³..
00 F0 11 00 01 00 00 00...
ÀÌ·¸°Ô °Ë»öÀÌ µÉ²®´Ï´Ù.
±×·³ ¹«¾ùÀÎÁö ¾Ë°ÚÁÒ?
µÚ¿¡ ÀÖ´Â 01 00 00 00 ¿¡¼­ 01 > 00À¸·Î ¹Ù²ãÁÖ¸é µË´Ï´Ù.
ÀÚ~
ÀÌÁ¦ decrypt°¡ ¿Ïº®È÷ ³¡³µ½À´Ï´Ù.

¹«¾ð°¡¸¦ ¼öÁ¤ÇØ¾ß ÇÑ´Ù¸é..
Áö±ÝºÎÅÍ ÇÏ½Ã¸é µË´Ï´Ù.
Àúµµ óÀ½¿¡ ´Ù¸¥ »çÀÌÆ®¿¡ ÀÖ´Â Á¤º¸¿¡¼­~ ¸Â´Â ÁÖ¼Ò°ªÀ» ã¾Ò´Âµ¥ °ªÀÌ Æ²·Á¼­ Çì¸å´Âµ¥~(±âÁ¸ÀÇ thin¹æ½ÄÀ¸·Î ÇÏ´Ù°¡)
ÀÌÇØ°¡ µÇ°Ú´õ±º¿ä.

±×¸®°í ¸¶Áö¸·À¸·Î ´çºÎ¸¦ µå¸®´Â°ÍÀº~
ÇöÀçÀÇ ¹æ¹ýÀº..
iPhone3GS(iPod/iPhone2G/3G)¿¡ ÇØ´çµË´Ï´Ù.
¸¸¾à¿¡ iPad/iPhone4¸¦ ÇÏ¼Å¾ß ÇÑ´Ù¸é(FAT BINARYÀ϶§)..
´ýÇÁÈ­ÀÏÀ» ¿øº»È­ÀÏ¿¡ µ¤À¸½Ç¶§~
architecture 1´ë½Å¿¡ architecture 0ÀÇ Á¤º¸·Î ÇÏ½Ã¸é µÇ°ÚÁÒ?
architecture 0ÀÇ offset°ªÀÌ 4096ÀÌ´Ï~
-.- ¿©±â¼­ Á¶±ÝÀº Çê±ò¸®´Âµ¥..
UniversalÀÌ ¾Æ´Ò¶§´Â µ¤À»¶§~ 0x1000ÁÖ¼Ò¿¡¼­ ½ÃÀÛÀ» Çߴµ¥..
ÀÏ´Ü offset°ªÀÌ 4096(0x1000)ÀÌ´Ï 0x1000+0x1000 = 0x2000¿¡¼­ ´ýÇÁÈ­ÀÏÀ» µ¤¾î¾º¿ì¸é µÇ°Ú³×¿ä.
È®ÀÎÇÒ±æÀÌ ¾ø³×¿ä..Áö±Ý ¾ÆÀÌÆÐµå/¾ÆÀÌÆù4°¡ ¾ø¾î¼­~

^^ Ŭµ¹´ÔÀÇ DeCryptIt 1.2¹öÁ¯ÀÌ¸é ´Ù ÇØ°áµË´Ï´Ù. ¾Æ¸¶µµ ¾ÆÀÌÆù3GS(ÀÌÇÏ)¸¸ ÇØ´çµÇ´Â°Í °°´õ±º¿ä.
À̱ÛÀº..
±×·¡µµ ³»¿ë¿¡ ´ëÇØ ÀÌÇØ¸¦ ÇϽöó°í ¿Ã¸³´Ï´Ù~



¿£Åä / ½ãºñ / Æúºñ / shareX.divshare.com
by tommyyo & bitzter
       
¹æÇö¿Àºü  
-.-
¾Æ´Ï¸é~
lipo {Ÿ°Ù} -thin armv6 -output armv6_thin
otool -l armv6_thin | grep crypt
cryptoff 4096
cryptsize 1421312
cryptid 1
...
ÀÌ·¸°Ô Àϼöµµ Àְڳ׿ä..
ÇØ´ç ±â±â¿¡¼­ ½ÇÇàÀ» ÇØ¼­ ¸Þ¸ð¸®´ýÇÁ°ªÀ» ±¸ÇØ¾ß Çϰí~ °ªÀÌ Æ²·ÁÁö´Ï~ ¸Þ¸ð¸®´ýÇÁ¿µ¿ªµµ ´Þ¶óÁö°í~
ÃÖÁ¾ cryptid°ªÀ» ¼öÁ¤Çϱâ À§ÇÑ À§Ä¡Ã£´Â °ªµµ ´Þ¶óÁö´Ï~
1421312 > 0x15B000
00 B0 15 00 01 00 00 00
...
-.- ÀÌ°Ô ¸Â°Ú³×¿ä? ¾Æ´Ñ°¡? ¿ù¿ä³¯~¿¡ ¾ÆÀÌÆÐµå°¡Áö°í Å×½ºÆ®¸¦ ÇØºÁ¾ß°Ú±º¿ä.
2010-08-22
04:25:51



 

Æú¸®¸®µë  
¾î..À̰й¹¾ß....¹«¼­¿ö...
2010-08-22
04:56:10



 

ÁøÀç¸í  
¾ÆÀÌÆù armv7 µÇÁö ¾Ê¾Æ¿ä? 3gs¿¡¼­¿ä.

µðÅ©¸³Æ®´Â ¾î·Æ³×¿ä
2010-08-22
05:18:40



 

½Ã³ë·ç  
SpringBoardÂÊ ÆÄÀÏ º¸¸é iPhone 3GS, iPod 3G, iPad, iPhone 4°¡ armv7À» Áö¿øÇϴ°ɷΠ³ª¿À°í, ³ª¸ÓÁö Á¦Ç°±º¿î armv6ÀÌÁö¿ä.
2010-08-22
21:27:50



 

¹æÇö¿Àºü  
¾Æ~À߸ø¼³¸í~
^^
2010-08-22
23:18:01



 

Å«µ¹  
Thin Binary ¾ÛÀº v6¿ëÀ¸·Î ³ª¿Í¼­ v7ÀÇ È®ÀåµÈ ±â´ÉÀ» »ç¿ëÇÏÁö ¸øÇÏÁö¸¸ Fat Binary´Â v7¿¡ ÃÖÀûÈ­µÈ ÄÚµå±îÁö °¡Áö°í Àֱ⠶§¹®¿¡ ¾î¶² °æ¿ì¿¡´Â 3Gs ÀÌ»óÀÇ ±â±â¿¡¼­ ºü¸£°Ô µ¿ÀÛÇÒ ¼ö ÀÖ´Ù´Â °ÅÁÒ.
2010-08-23
01:30:54



 

CrackOS  
°í¸¶¿ö¿ä µåµ® ¼º°øÇß¾î¿ä¤Ð.¤Ð Ȥ½Ã µµ¿ò ÇÊ¿ä ÇϽźР´ýÇÁ ¸¸µé¾î µå·Á¿ä~ facebook ¿¡ ±×·ì ¸¸µé¾ú´Âµ¥ ¿À¼¼¿ä~ pauly84@naver.com Ä£Ãß^^
2010-11-04
06:39:55



 

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