diff --git a/2000/01/01/hello-world/index.html b/2000/01/01/hello-world/index.html index 3ea8e290..4b41adcf 100644 --- a/2000/01/01/hello-world/index.html +++ b/2000/01/01/hello-world/index.html @@ -657,7 +657,7 @@ - 15.6k + 15.5k diff --git a/2018/11/16/BIBA访问控制模型实现(python)/index.html b/2018/11/16/BIBA访问控制模型实现(python)/index.html index 374c8ff2..0e178466 100644 --- a/2018/11/16/BIBA访问控制模型实现(python)/index.html +++ b/2018/11/16/BIBA访问控制模型实现(python)/index.html @@ -845,7 +845,7 @@ - 15.6k + 15.5k diff --git a/2018/12/15/miio-control/index.html b/2018/12/15/miio-control/index.html index 4a80960f..1986fcad 100644 --- a/2018/12/15/miio-control/index.html +++ b/2018/12/15/miio-control/index.html @@ -747,7 +747,7 @@ - 15.6k + 15.5k diff --git a/2018/12/23/基于规则引擎发现IOT设备/index.html b/2018/12/23/基于规则引擎发现IOT设备/index.html index 504c0494..64de1153 100644 --- a/2018/12/23/基于规则引擎发现IOT设备/index.html +++ b/2018/12/23/基于规则引擎发现IOT设备/index.html @@ -747,7 +747,7 @@ - 15.6k + 15.5k diff --git a/2018/12/25/TCPDUMP拒绝服务攻击漏洞/index.html b/2018/12/25/TCPDUMP拒绝服务攻击漏洞/index.html index f056d8bf..cc29d52a 100644 --- a/2018/12/25/TCPDUMP拒绝服务攻击漏洞/index.html +++ b/2018/12/25/TCPDUMP拒绝服务攻击漏洞/index.html @@ -752,7 +752,7 @@ - 15.6k + 15.5k diff --git a/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html b/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html index 693bbd33..31344173 100644 --- a/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html +++ b/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html @@ -875,7 +875,7 @@ Server -------wire----------| - 15.6k + 15.5k diff --git a/2019/02/22/qq数据库的加密解密/index.html b/2019/02/22/qq数据库的加密解密/index.html index 9f18fb91..d7d972f4 100644 --- a/2019/02/22/qq数据库的加密解密/index.html +++ b/2019/02/22/qq数据库的加密解密/index.html @@ -724,7 +724,7 @@ - 15.6k + 15.5k diff --git a/2019/03/16/小米固件工具mkxqimage/index.html b/2019/03/16/小米固件工具mkxqimage/index.html index a4127fd8..2f7c674f 100644 --- a/2019/03/16/小米固件工具mkxqimage/index.html +++ b/2019/03/16/小米固件工具mkxqimage/index.html @@ -731,7 +731,7 @@ - 15.6k + 15.5k diff --git a/2019/03/23/auto-send-WX/index.html b/2019/03/23/auto-send-WX/index.html index 2975aaca..7e42186c 100644 --- a/2019/03/23/auto-send-WX/index.html +++ b/2019/03/23/auto-send-WX/index.html @@ -741,7 +741,7 @@ - 15.6k + 15.5k diff --git a/2019/03/25/Samba-CVE/index.html b/2019/03/25/Samba-CVE/index.html index 5eda1323..a67b28b7 100644 --- a/2019/03/25/Samba-CVE/index.html +++ b/2019/03/25/Samba-CVE/index.html @@ -766,7 +766,7 @@ - 15.6k + 15.5k diff --git a/2019/03/28/逆向工程实验/index.html b/2019/03/28/逆向工程实验/index.html index c52c5d31..481c6459 100644 --- a/2019/03/28/逆向工程实验/index.html +++ b/2019/03/28/逆向工程实验/index.html @@ -90,7 +90,10 @@ - + + + + @@ -411,7 +414,7 @@ - 927 字 + 845 字 @@ -513,10 +516,20 @@

查找注册码验证相关代码

用鼠标选中程序分支点，按空格切换回汇编指令界面

可以看到，这条指令位于PE文件的.text节，并且IDA已经自动将地址转换为运行时的内存地址VA:004010F9

修改程序跳转

-

cmp eax,ecx
jnz xxxxxxx

1
2
3
4
5
6
7
8
9
10
11
12

- 也就是说，当序列号输入错误时，EAX中的值为0，跳转将被执行。
如果我们把jnz这条指令修改为jz，那么整个程序的逻辑就会反过来。
双击jnz这条指令，将其改为jz，单击"汇编"将其写入内存
![](https://res.cloudinary.com/dozyfkbg3/image/upload/v1553775817/%E8%BD%AF%E4%BB%B6%E7%A0%B4%E8%A7%A3/%E6%8D%95%E8%8E%B75.png)
可以看到此时程序执行了相反的路径

- 上面只是在内存中修改程序，我们还需要在二进制文件中也修改相应的字节，这里考察VA与文件地址之间的关系
- 用LordPE打开.exe文件，查看PE文件的节信息
![](https://res.cloudinary.com/dozyfkbg3/image/upload/v1553776239/%E8%BD%AF%E4%BB%B6%E7%A0%B4%E8%A7%A3/%E6%8D%95%E8%8E%B76.png)

根据VA与文件地址的换算公式：

-

文件偏移地址 = VA - Image Base - 节偏移
= 0x004010F9 - 0x00400000 - 0
= 0x10F9
`
也就是说，这条指令在PE文件中位于10F9字节处，使用010Editer打开crack.exe，将这一字节的75(JNZ)改为74(JZ)，保存后重新执行，破解成功！

+
1
2
cmp eax,ecx
jnz xxxxxxx
+ +

根据VA与文件地址的换算公式：

1
2
3
文件偏移地址 = VA - Image Base - 节偏移
            = 0x004010F9 - 0x00400000 - 0
            = 0x10F9

+

也就是说，这条指令在PE文件中位于10F9字节处，使用010Editer打开crack.exe，将这一字节的75(JNZ)改为74(JZ)，保存后重新执行，破解成功！

编写注册机

1. 查找显示注册结果相关代码

2. 查找注册码验证相关代码

3. 根据注册码验证代码编写注册机

@@ -785,7 +798,7 @@ - 15.6k + 15.5k diff --git a/about/index.html b/about/index.html index 0f15fa17..7fcb7e73 100644 --- a/about/index.html +++ b/about/index.html @@ -466,7 +466,7 @@ - 15.6k + 15.5k diff --git a/archives/2000/01/index.html b/archives/2000/01/index.html index d553151b..4aee90f5 100644 --- a/archives/2000/01/index.html +++ b/archives/2000/01/index.html @@ -496,7 +496,7 @@ - 15.6k + 15.5k diff --git a/archives/2000/index.html b/archives/2000/index.html index d0152911..a283eacc 100644 --- a/archives/2000/index.html +++ b/archives/2000/index.html @@ -496,7 +496,7 @@ - 15.6k + 15.5k diff --git a/archives/2018/11/index.html b/archives/2018/11/index.html index 9178a779..6d393b08 100644 --- a/archives/2018/11/index.html +++ b/archives/2018/11/index.html @@ -496,7 +496,7 @@ - 15.6k + 15.5k diff --git a/archives/2018/12/index.html b/archives/2018/12/index.html index e8b02a7c..258a21d0 100644 --- a/archives/2018/12/index.html +++ b/archives/2018/12/index.html @@ -566,7 +566,7 @@ - 15.6k + 15.5k diff --git a/archives/2018/index.html b/archives/2018/index.html index 03dea0bf..cb9bb2dc 100644 --- a/archives/2018/index.html +++ b/archives/2018/index.html @@ -601,7 +601,7 @@ - 15.6k + 15.5k diff --git a/archives/2019/01/index.html b/archives/2019/01/index.html index 85306ce8..ed2aaa8d 100644 --- a/archives/2019/01/index.html +++ b/archives/2019/01/index.html @@ -496,7 +496,7 @@ - 15.6k + 15.5k diff --git a/archives/2019/02/index.html b/archives/2019/02/index.html index 6f3b2a07..b45e6caf 100644 --- a/archives/2019/02/index.html +++ b/archives/2019/02/index.html @@ -496,7 +496,7 @@ - 15.6k + 15.5k diff --git a/archives/2019/03/index.html b/archives/2019/03/index.html index d2ee2d41..e185a421 100644 --- a/archives/2019/03/index.html +++ b/archives/2019/03/index.html @@ -601,7 +601,7 @@ - 15.6k + 15.5k diff --git a/archives/2019/index.html b/archives/2019/index.html index 60e5904c..0d6f53fb 100644 --- a/archives/2019/index.html +++ b/archives/2019/index.html @@ -671,7 +671,7 @@ - 15.6k + 15.5k diff --git a/archives/index.html b/archives/index.html index c9acef47..7140022d 100644 --- a/archives/index.html +++ b/archives/index.html @@ -820,7 +820,7 @@ - 15.6k + 15.5k diff --git a/archives/page/2/index.html b/archives/page/2/index.html index aad87b4d..88b479f7 100644 --- a/archives/page/2/index.html +++ b/archives/page/2/index.html @@ -500,7 +500,7 @@ - 15.6k + 15.5k diff --git a/bookmarks/index.html b/bookmarks/index.html index 2e5ebcf8..ab334b65 100644 --- a/bookmarks/index.html +++ b/bookmarks/index.html @@ -518,7 +518,7 @@ - 15.6k + 15.5k diff --git a/categories/IOT/index.html b/categories/IOT/index.html index dc9aa902..ae660c89 100644 --- a/categories/IOT/index.html +++ b/categories/IOT/index.html @@ -529,7 +529,7 @@ - 15.6k + 15.5k diff --git a/categories/index.html b/categories/index.html index d21b1d8b..67b43a66 100644 --- a/categories/index.html +++ b/categories/index.html @@ -468,7 +468,7 @@ - 15.6k + 15.5k diff --git a/categories/二进制/index.html b/categories/二进制/index.html index 55d47ac7..233394a5 100644 --- a/categories/二进制/index.html +++ b/categories/二进制/index.html @@ -477,7 +477,7 @@ - 15.6k + 15.5k diff --git a/categories/加密解密/index.html b/categories/加密解密/index.html index 3c221681..25e392bb 100644 --- a/categories/加密解密/index.html +++ b/categories/加密解密/index.html @@ -477,7 +477,7 @@ - 15.6k + 15.5k diff --git a/categories/杂七杂八/index.html b/categories/杂七杂八/index.html index 53bdff51..089a18aa 100644 --- a/categories/杂七杂八/index.html +++ b/categories/杂七杂八/index.html @@ -477,7 +477,7 @@ - 15.6k + 15.5k diff --git a/categories/理论学习/index.html b/categories/理论学习/index.html index 32ccc3a4..b2730da1 100644 --- a/categories/理论学习/index.html +++ b/categories/理论学习/index.html @@ -477,7 +477,7 @@ - 15.6k + 15.5k diff --git a/categories/顶会论文/index.html b/categories/顶会论文/index.html index 32af792b..eb07402a 100644 --- a/categories/顶会论文/index.html +++ b/categories/顶会论文/index.html @@ -503,7 +503,7 @@ - 15.6k + 15.5k diff --git a/index.html b/index.html index 50aeac06..95d2cb16 100644 --- a/index.html +++ b/index.html @@ -395,7 +395,7 @@ - 927 字 + 845 字 @@ -2354,7 +2354,7 @@ ettercap嗅探智能设备和网关之间的流量sudo ettercap -i ens33 -T -q - 15.6k + 15.5k diff --git a/page/2/index.html b/page/2/index.html index 1572d0c3..249cf8c6 100644 --- a/page/2/index.html +++ b/page/2/index.html @@ -604,7 +604,7 @@ - 15.6k + 15.5k diff --git a/search.xml b/search.xml index 1d6f69f6..d98e37a3 100644 --- a/search.xml +++ b/search.xml @@ -3,7 +3,7 @@ <![CDATA[逆向工程实验]]> %2F2019%2F03%2F28%2F%E9%80%86%E5%90%91%E5%B7%A5%E7%A8%8B%E5%AE%9E%E9%AA%8C%2F - + -二进制 diff --git a/sitemap.xml b/sitemap.xml index 175fca45..bb556c59 100644 --- a/sitemap.xml +++ b/sitemap.xml @@ -4,7 +4,7 @@ https://cool-y.github.io/2019/03/28/%E9%80%86%E5%90%91%E5%B7%A5%E7%A8%8B%E5%AE%9E%E9%AA%8C/ - 2019-03-28T13:04:12.572Z + 2019-03-28T13:05:56.799Z diff --git a/tags/CVE/index.html b/tags/CVE/index.html index a121dd3a..e8f8ef25 100644 --- a/tags/CVE/index.html +++ b/tags/CVE/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/QQ/index.html b/tags/QQ/index.html index 1817a891..d7e60480 100644 --- a/tags/QQ/index.html +++ b/tags/QQ/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/SSH/index.html b/tags/SSH/index.html index 8256025f..14374b9d 100644 --- a/tags/SSH/index.html +++ b/tags/SSH/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/Samba/index.html b/tags/Samba/index.html index 927d4048..d35f980c 100644 --- a/tags/Samba/index.html +++ b/tags/Samba/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/TCPDUMP/index.html b/tags/TCPDUMP/index.html index 1add1028..14a3af7a 100644 --- a/tags/TCPDUMP/index.html +++ b/tags/TCPDUMP/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/USENIX/index.html b/tags/USENIX/index.html index 0b12985a..a8394aca 100644 --- a/tags/USENIX/index.html +++ b/tags/USENIX/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/index.html b/tags/index.html index b2e0cfab..3140c5be 100644 --- a/tags/index.html +++ b/tags/index.html @@ -468,7 +468,7 @@ - 15.6k + 15.5k diff --git a/tags/itchat/index.html b/tags/itchat/index.html index e312ed61..876361f4 100644 --- a/tags/itchat/index.html +++ b/tags/itchat/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/miio/index.html b/tags/miio/index.html index a9a672b6..a6e9f062 100644 --- a/tags/miio/index.html +++ b/tags/miio/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/python/index.html b/tags/python/index.html index 057b5da4..b4f7661e 100644 --- a/tags/python/index.html +++ b/tags/python/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/wifi/index.html b/tags/wifi/index.html index 8a305540..ea33f5a2 100644 --- a/tags/wifi/index.html +++ b/tags/wifi/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/中间人/index.html b/tags/中间人/index.html index 3a5d0d8c..a572e028 100644 --- a/tags/中间人/index.html +++ b/tags/中间人/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/侧信道攻击/index.html b/tags/侧信道攻击/index.html index f42f79d8..24466dd4 100644 --- a/tags/侧信道攻击/index.html +++ b/tags/侧信道攻击/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/密码/index.html b/tags/密码/index.html index d0ae5a66..07a3ece0 100644 --- a/tags/密码/index.html +++ b/tags/密码/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/小米/index.html b/tags/小米/index.html index d2ab8a57..911956f4 100644 --- a/tags/小米/index.html +++ b/tags/小米/index.html @@ -502,7 +502,7 @@ - 15.6k + 15.5k diff --git a/tags/微信/index.html b/tags/微信/index.html index 8643f315..57227079 100644 --- a/tags/微信/index.html +++ b/tags/微信/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/拒绝服务攻击/index.html b/tags/拒绝服务攻击/index.html index 34dbe64f..5d9ebee5 100644 --- a/tags/拒绝服务攻击/index.html +++ b/tags/拒绝服务攻击/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/数据库/index.html b/tags/数据库/index.html index 0bc8029f..2c499113 100644 --- a/tags/数据库/index.html +++ b/tags/数据库/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/数据挖掘/index.html b/tags/数据挖掘/index.html index 8f3a5673..61bd917a 100644 --- a/tags/数据挖掘/index.html +++ b/tags/数据挖掘/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/文件格式/index.html b/tags/文件格式/index.html index 6febb6a4..5d6b34dd 100644 --- a/tags/文件格式/index.html +++ b/tags/文件格式/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/模型实现/index.html b/tags/模型实现/index.html index 7a7a6517..5cffe968 100644 --- a/tags/模型实现/index.html +++ b/tags/模型实现/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/自然语言处理/index.html b/tags/自然语言处理/index.html index bce817d5..ca54a8e6 100644 --- a/tags/自然语言处理/index.html +++ b/tags/自然语言处理/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/访问控制/index.html b/tags/访问控制/index.html index 66d82a38..1e2a10e3 100644 --- a/tags/访问控制/index.html +++ b/tags/访问控制/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/远程执行/index.html b/tags/远程执行/index.html index 49330312..7607b65f 100644 --- a/tags/远程执行/index.html +++ b/tags/远程执行/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/逆向/index.html b/tags/逆向/index.html index dd35cd64..1ee50386 100644 --- a/tags/逆向/index.html +++ b/tags/逆向/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k diff --git a/tags/重放攻击/index.html b/tags/重放攻击/index.html index ef74366d..fc1294ef 100644 --- a/tags/重放攻击/index.html +++ b/tags/重放攻击/index.html @@ -476,7 +476,7 @@ - 15.6k + 15.5k