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- 1. Reverse Engineering TDOH x Tigerduck LegBone
- 2. • BY PASS Hackshield • TDOHacker • SITCON 2014/2015 short talk • HITCON 2015 • • ….. About Me
- 5. • Windows XP • VMware
- 14. 1. 2.OD/IDA 3. upx asp... 4. ring3 anti debugger
- 15. • • •
- 16. •
- 17. •
- 18. • •
- 19. • • •
- 20. • • • •
- 21. • , 1010101 • Binary
- 22. (* ́∀`*)
- 23. (* ́∀`*) CPU , CPU
- 28. XD • • mov → move EX : mov ecx, 1 • add / sub → EX : add eax,10 • cmp / test → • jmp → • push / pop → Stack
- 29. XD • • mov → move EX : mov ecx, 1 • add / sub → EX : add eax,10 • cmp / test → • jmp → • push / pop → Stack
- 30. XD • • mov → move EX : mov ecx, 1 • add / sub → EX : add eax,10 • cmp / test → • jmp → • push / pop → Stack
- 31. XD • • mov → move EX : mov ecx, 1 • add / sub → EX : add eax,10 • cmp / test → • jmp → • push / pop → Stack
- 32. XD • • mov → move EX : mov ecx, 1 • add / sub → EX : add eax,10 • cmp / test → • jmp → • push / pop → Stack
- 33. • inc eax → eax+1 • dec eax → eax-1 • xor eax,ebx → eax ebx xor eax • or eax,ebx → eax ebx or eax • and eax,ebx → eax ebx and eax
- 34. • inc eax → eax+1 • dec eax → eax-1 • xor eax,ebx → eax ebx xor eax • or eax,ebx → eax ebx or eax • and eax,ebx → eax ebx and eax
- 35. • inc eax → eax+1 • dec eax → eax-1 • xor eax,ebx → eax ebx xor eax • or eax,ebx → eax ebx or eax • and eax,ebx → eax ebx and eax
- 36. • inc eax → eax+1 • dec eax → eax-1 • xor eax,ebx → eax ebx xor eax • or eax,ebx → eax ebx or eax • and eax,ebx → eax ebx and eax
- 37. • inc eax → eax+1 • dec eax → eax-1 • xor eax,ebx → eax ebx xor eax • or eax,ebx → eax ebx or eax • and eax,ebx → eax ebx and eax
- 38. • byte ptr[ebp+8] → ebp+8 byte • dword ptr[ebp+8] → ebp+8 dword • lea , →
- 39. • byte ptr[ebp+8] → ebp+8 byte • dword ptr[ebp+8] → ebp+8 dword • lea , →
- 40. • byte ptr[ebp+8] → ebp+8 byte • dword ptr[ebp+8] → ebp+8 dword • lea , →
- 41. T_T (?
- 43. (?
- 44. • • • Code • • •
- 45. • • ollydbg • ida pro • cheat engine • …
- 46. OLLYDBG
- 55. OD
- 56. IDA PRO
- 61. DEOM
- 63. • •
- 64. • • • : (σ ・ω・)σ
- 66. /
- 67. /
- 69. / or • • • upx mpress • • asprotect themida
- 70. / or • • • upx mpress • • asprotect themida • by • vmprotect
- 71. /
- 72. /
- 73. /
- 74. / •
- 75. / • •
- 76. / ( •̀ . ̫•́)✧
- 77. /
- 78. /
- 79. / memory dump
- 80. / memory dump
- 81. / • • • PEID….
- 83. /
- 84. / • • •
- 86. / Delphi
- 87. / BC++
- 88. / VB
- 89. / VC6.0
- 90. / VC7.0
- 92. / • memory dump • memory dump • code •
- 93. / • memory dump • memory dump • code • • • ollydbg • LordPE
- 94. /
- 95. /
- 96. / • • • •
- 98. /
- 99. /
- 100. /
- 101. / esp
- 102. / • esp • • • pushad popad
- 103. / • esp • • • pushad popad • • esp • • oep
- 104. /
- 105. / DEOM
- 106. /
- 107. /
- 108. / DEOM
- 109. /
- 110. /
- 111. / DEOM
- 112. /
- 113. /
- 114. Ring3 anti debugger
- 115. Ring3 anti debugger
- 116. Ring3 anti debugger
- 117. Ring3 anti debugger
- 118. Ring3 anti debugger
- 119. /
- 120. Ring3 anti debugger
- 121. Ring3 anti debugger
- 122. Ring3 anti debugger
- 126. Ring3 anti debugger anti debugger debugger
- 127. Ring3 anti debugger deubgger debug DbgUiRemoteBreakin DbgUiRemoteBreakin DbgBreakPoint
- 128. Ring3 anti debugger debugger sitcon 2014 https://speakerdeck.com/cowby123/di-ci-zi-gan- debuggerjiu-shang-shou
- 129. Ring3 anti debugger
- 130. Ring3 anti debugger NtCurrentPeb()->BeingDebugged PEB BeingDebugged
- 131. Ring3 anti debugger
- 135. Ring3 anti debugger
- 136. Ring3 anti debugger
- 137. Ring3 anti debugger anti debugger
- 138. Ring3 anti debugger
- 139. Ring3 anti debugger a.exe b.exe a.exe b.exe
- 140. Ring3 anti debugger
- 141. Ring3 anti debugger cmd.exe explorer.exe debug
- 142. Ring3 anti debugger
- 146. Ring3 anti debugger
- 147. Ring3 anti debugger
- 148. Ring3 anti debugger anti debugger od
- 149. Ring3 anti debugger
- 152. Ring3 anti debugger
- 153. Ring3 anti debugger
- 154. Ring3 anti debugger