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<div align="center"><span class="p"><b><font color="#FF3333" class="p11">第十一课
crack常见技巧</font></b></span></div>
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<div align="left"><span class="p9"><span class="p9">1、<span class="p9"><a href="lesson1401.htm" tppabs="http://toye.dihou.org/lesson1401.htm"><span class="p9"><span class="p9">一些常用方法</span></span></a></span></span></span></div>
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<div align="left"><span class="p9"><span class="p9">5、<font color="#FF0066">Key
File保护</font></span></span></div>
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<div align="left"><span class="p9"><span class="p9">2、<span class="p9"><span class="p9"><a href="lesson1402.htm" tppabs="http://toye.dihou.org/lesson1402.htm">序列号方式</a></span></span></span></span></div>
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<td width="50%" valign="top" class="p9" height="20"><span class="p9"><span class="p9">6、<span class="p9"><span class="p9"><a href="lesson1407.htm" tppabs="http://toye.dihou.org/lesson1407.htm">功能限制的程序</a></span></span> </span></span></td>
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<div align="left"><span class="p9"><span class="p9">3、<a href="lesson1403.htm" tppabs="http://toye.dihou.org/lesson1403.htm">NAG方式（警告窗口）</a></span></span></div>
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<td width="50%" valign="top" class="p9" height="20"><span class="p9"><span class="p9">7、<span class="p9"><span class="p9"><a href="lesson1408.htm" tppabs="http://toye.dihou.org/lesson1408.htm">InstallSHIELD
Setups </a></span> </span></span></span></td>
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<div align="left"><span class="p9"><span class="p9">4、<a href="lesson1404.htm" tppabs="http://toye.dihou.org/lesson1404.htm">运行时间限制</a></span></span></div>
</td>
<td width="50%" valign="top" class="p9" height="20">8、<a href="lesson1410.htm" tppabs="http://toye.dihou.org/lesson1410.htm">CD-check</a></td>
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<p align="center" class="p9"><span class="p9"><span class="p9">5、<a href="lesson1406.htm" tppabs="http://toye.dihou.org/lesson1406.htm">Key
File保护</a></span></span> <font color="#FF6666"> 【习题】 </font></p>
<p align="left" class="p9"><b><span class="p9">1、习题一</span></b><span class="p9">
<a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-01%20.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-01%20.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-01%20.zip">lesson1406-ex-01</a> Keyfile和Serial/Name 103K
易</span></p>
<p align="left" class="p9"><span class="p9"> <b><span class="p9">2、习题二 </span></b><span class="p9"><a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-02.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-02.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-02.zip">lesson1406-ex-02</a></span>
Keyfile 120K 易<br>
</span></p>
<p align="left" class="p9"><span class="p9"><b><span class="p9">3、习题三 </span></b><span class="p9"><a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-02.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-02.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-02.zip"></a><span class="p9"><a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-03.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-03.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-03.zip">lesson1406-ex-03</a></span>
Keyfile</span> 3K 易</span></p>
<p align="left" class="p9"><span class="p9"><b><span class="p9">4、习题四 </span></b><span class="p9"><a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-02.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-02.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-02.zip"></a><span class="p9"><a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-04.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-04.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-04.zip">lesson1406-ex-04</a></span>
Keyfile</span> 22K 中</span></p>
<p align="left" class="p9"><span class="p9"><b><span class="p9">5、习题五 </span></b><span class="p9"><a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-02.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-02.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-02.zip"></a><span class="p9"><a href="javascript:if(confirm('http://toye.dihou.org/lesson1406-ex-05.zip \n\n这个文件不能通过 Teleport Pro 取回, 因为 没有遇到方案的文件类型说明. \n\n你想从服务器打开它吗?'))window.location='http://toye.dihou.org/lesson1406-ex-05.zip'" tppabs="http://toye.dihou.org/lesson1406-ex-05.zip">lesson1406-ex-05</a></span>
Keyfile</span> 14K 难</span></p>
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<span class="p9">1、习题一 答案 </span></a> </div>
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<p class="p9">保护类型： Keyfile and Serial/Name <br>
工具：Softice和W32dasm <br>
Cracker: FireWorx
<br>
用W32DASM装载程序，先用串式数据参考(String data refs) 检查程序。 <br>
你运行crame时，选择任一文件，则出现:"Invalid Keyfile"，因此在W32DASM查找这字符串，双击来到W32DASM中，向上会看到：
<br>
<br>
* Possible StringData Ref from Code Obj ->"Runtime Error: 12FF:024"
<br>
| <br>
:00427DDE BAD07E4200
mov edx, 00427ED0 //打开文件 <br>
:00427DE3 E8A0B8FDFF
call 00403688 //检测文件 <br>
:00427DE8 750C
jne 00427DF6
//如果无效的keyword则跳走 <br>
:00427DEA C705E8A6420002000000 mov dword ptr [0042A6E8],
00000002 <br>
:00427DF4 EB67
jmp 00427E5D <br>
<br>
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
<br>
|:00427DE8(C) <br>
| <br>
:00427DF6 C705E8A6420001000000 mov dword ptr [0042A6E8],
00000001 //准备nag窗口! <br>
:00427E00 6A00
push 00000000 <br>
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