【文章作者】: 小子贼野[D.4s][DCG]
【软件名称】: Cool File Encryption
【下载地址】: http://www.onlinedown.net/soft/37831.htm
【软件介绍】: 这是一个可靠方便的加密工具,使用AES算法。具有简单方便的类似MAC的界面,能处理任何类型尺寸的文件,能一次加密多个文件,支持128,192,256位AES加密算法。
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004B1838 |. 55 push ebp
004B1839 |. 68 8C194B00 push unpack.004B198C
004B183E |. 64:FF30 push dword ptr fs:[eax]
004B1841 |. 64:8920 mov dword ptr fs:[eax],esp
004B1844 |. 8D45 F0 lea eax,[local.4]
004B1847 |. BA A4194B00 mov edx,unpack.004B19A4 ; ASCII "1301" 这是头4个数字
004B184C |. E8 6F2AF5FF call unpack.004042C0
004B1851 |. 8D55 F8 lea edx,[local.2]
004B1854 |. 8B45 FC mov eax,[local.1]
004B1857 |. 8B80 14030000 mov eax,dword ptr ds:[eax+314]
004B185D |. E8 8AFAF9FF call unpack.004512EC
004B1862 |. 8B45 F8 mov eax,[local.2] ; eax=用户名位数
004B1865 |. E8 7E2CF5FF call unpack.004044E8
004B186A |. 8BD8 mov ebx,eax
004B186C |. 8D55 EC lea edx,[local.5]
004B186F |. B8 6D000000 mov eax,6D
004B1874 |. E8 276EF5FF call unpack.004086A0
004B1879 |. 8B55 EC mov edx,[local.5] ; 109?分析了半天才发现和1301连接起来作为注册码的开头前7位的,发晕ing
004B187C |. 8D45 F0 lea eax,[local.4]
004B187F |. E8 6C2CF5FF call unpack.004044F0
004B1884 |. 83FB 05 cmp ebx,5
004B1887 |. 7C 05 jl short unpack.004B188E
004B1889 |. BB 05000000 mov ebx,5
004B188E |> 8BF3 mov esi,ebx
004B1890 |. 85F6 test esi,esi
004B1892 |. 7E 42 jle short unpack.004B18D6
004B1894 |. C745 F4 01000000 mov [local.3],1
004B189B |> 8D45 E8 /lea eax,[local.6]
004B189E |. 50 |push eax
004B189F |. B9 01000000 |mov ecx,1
004B18A4 |. 8B55 F4 |mov edx,[local.3]
004B18A7 |. 8B45 F8 |mov eax,[local.2]
004B18AA |. E8 992EF5FF |call unpack.00404748
004B18AF |. 8B45 E8 |mov eax,[local.6]
004B18B2 |. E8 312EF5FF |call unpack.004046E8
004B18B7 |. 8A18 |mov bl,byte ptr ds:[eax] ; 取用户名Ascii
004B18B9 |. 8D55 E4 |lea edx,[local.7]
004B18BC |. 33C0 |xor eax,eax
004B18BE |. 8AC3 |mov al,bl
004B18C0 |. E8 DB6DF5FF |call unpack.004086A0 ; 将用户名Ascii转换成10进制
004B18C5 |. 8B55 E4 |mov edx,[local.7]
004B18C8 |. 8D45 F0 |lea eax,[local.4]
004B18CB |. E8 202CF5FF |call unpack.004044F0 ; 连接起来
004B18D0 |. FF45 F4 |inc [local.3]
004B18D3 |. 4E |dec esi
004B18D4 |.^ 75 C5 \jnz short unpack.004B189B ; 循环
004B18D6 |> 8D55 E0 lea edx,[local.8]
004B18D9 |. 8B45 FC mov eax,[local.1]
004B18DC |. 8B80 18030000 mov eax,dword ptr ds:[eax+318]
004B18E2 |. E8 05FAF9FF call unpack.004512EC
004B18E7 |. 8B45 E0 mov eax,[local.8]
004B18EA |. 8B55 F0 mov edx,[local.4]
004B18ED |. E8 422DF5FF call unpack.00404634
004B18F2 |. 75 55 jnz short unpack.004B1949 ; 关键跳
004B18F4 |. B2 01 mov dl,1
004B18F6 |. A1 5C5E4300 mov eax,dword ptr ds:[435E5C]
004B18FB |. E8 5C46F8FF call unpack.00435F5C
004B1900 |. 8BD8 mov ebx,eax
004B1902 |. BA 00000080 mov edx,80000000
004B1907 |. 8BC3 mov eax,ebx
004B1909 |. E8 EE46F8FF call unpack.00435FFC
004B190E |. B1 01 mov cl,1
004B1910 |. BA B4194B00 mov edx,unpack.004B19B4 ; .lwx
004B1915 |. 8BC3 mov eax,ebx
004B1917 |. E8 4447F8FF call unpack.00436060
004B191C |. 84C0 test al,al
004B191E |. 74 11 je short unpack.004B1931
004B1920 |. B9 C4194B00 mov ecx,unpack.004B19C4 ; mxlovelwxmore
004B1925 |. BA DC194B00 mov edx,unpack.004B19DC ; registerok
004B192A |. 8BC3 mov eax,ebx
004B192C |. E8 CB48F8FF call unpack.004361FC
004B1931 |> 8BC3 mov eax,ebx
004B1933 |. E8 801BF5FF call unpack.004034B8
004B1938 |. A1 406C4B00 mov eax,dword ptr ds:[4B6C40]
004B193D |. 8B00 mov eax,dword ptr ds:[eax]
004B193F |. 8B10 mov edx,dword ptr ds:[eax]
004B1941 |. FF92 EC000000 call dword ptr ds:[edx+EC]
004B1947 |. EB 18 jmp short unpack.004B1961
004B1949 |> 6A 00 push 0
004B194B |. B9 E8194B00 mov ecx,unpack.004B19E8 ; warning
004B1950 |. BA F0194B00 mov edx,unpack.004B19F0 ; invalid registration!!
004B1955 |. A1 AC6B4B00 mov eax,dword ptr ds:[4B6BAC]
004B195A |. 8B00 mov eax,dword ptr ds:[eax]
004B195C |. E8 0BF8FBFF call unpack.0047116C
004B1961 |> 33C0 xor eax,eax
004B1963 |. 5A pop edx
004B1964 |. 59 pop ecx
004B1965 |. 59 pop ecx
004B1966 |. 64:8910 mov dword ptr fs:[eax],edx
004B1969 |. 68 93194B00 push unpack.004B1993
004B196E |> 8D45 E0 lea eax,[local.8]
004B1971 |. E8 B228F5FF call unpack.00404228
004B1976 |. 8D45 E4 lea eax,[local.7]
004B1979 |. BA 04000000 mov edx,4
004B197E |. E8 C928F5FF call unpack.0040424C
004B1983 |. 8D45 F8 lea eax,[local.2]
004B1986 |. E8 9D28F5FF call unpack.00404228
004B198B \. C3 retn **********************************************************************************************
算法总结:
1301109+用户名前5位的Ascii=注册码
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Delphi注册机源码:
var
i,a:integer;
b:string;
begin
for i:=1 to 5 do
begin
a:=ord(edit1.text[i]);
b:=b+'1301109'+inttostr(a);
end;
edit2.text:=b;
end;
**********************************************************************************************
一个晚上,找到了3个软到家的柿子
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