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LeapFTP 2.7.3.600

时间:2004/10/15 0:58:00来源:本站整理作者:蓝点我要评论(0)

破解目标:LeapFTP 2.7.3.600
官方主页:http://www.leapware.com/download.html
软件简介:ftp下載軟件。
下载地址ftp://ftp.leapware.com/pub/lftp273.exe

使用工具:W32Dasm、Ollydbg、Windows 自带的计算器

這個程序用fi2.5檢測無殼,用W32Dasm,找到“感謝註冊”:

* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00487B6C(C)
|
:00487B7C 8B83F0020000            mov eax, dword ptr [ebx+000002F0]
:00487B82 50                      push eax
:00487B83 8D55F4                  lea edx, dword ptr [ebp-0C]
:00487B86 8B83D0020000            mov eax, dword ptr [ebx+000002D0]
:00487B8C E833C0FAFF              call 00433BC4
:00487B91 8B55F4                  mov edx, dword ptr [ebp-0C]
:00487B94 8B4DFC                  mov ecx, dword ptr [ebp-04]
:00487B97 8BC3                    mov eax, ebx
:00487B99 E8BA010000              call 00487D58  //註冊碼就在裏靣算出
:00487B9E 84C0                    test al, al    //測試AL
:00487BA0 7462                    je 00487C04    //為0就去死

* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00487B7A(C)
|
:00487BA2 8D55F0                  lea edx, dword ptr [ebp-10]
:00487BA5 8B83E4020000            mov eax, dword ptr [ebx+000002E4]
:00487BAB E814C0FAFF              call 00433BC4
:00487BB0 8B45F0                  mov eax, dword ptr [ebp-10]
:00487BB3 50                      push eax
:00487BB4 8D55EC                  lea edx, dword ptr [ebp-14]
:00487BB7 8B83D0020000            mov eax, dword ptr [ebx+000002D0]
:00487BBD E802C0FAFF              call 00433BC4
:00487BC2 8B4DEC                  mov ecx, dword ptr [ebp-14]
:00487BC5 8B93EC020000            mov edx, dword ptr [ebx+000002EC]
:00487BCB 8BC3                    mov eax, ebx
:00487BCD E8AE040000              call 00488080

* Possible StringData Ref from Code Obj ->"感谢你的注册!"
                                  |
:00487BD2 B8507C4800              mov eax, 00487C50
:00487BD7 E8542FFDFF              call 0045AB30
:00487BDC C7833402000001000000    mov dword ptr [ebx+00000234], 00000001
:00487BE6 8D55E8                  lea edx, dword ptr [ebp-18]
:00487BE9 8B83D0020000            mov eax, dword ptr [ebx+000002D0]
:00487BEF E8D0BFFAFF              call 00433BC4
:00487BF4 8B55E8                  mov edx, dword ptr [ebp-18]
:00487BF7 8D83E8020000            lea eax, dword ptr [ebx+000002E8]
:00487BFD E846C1F7FF              call 00403D48
:00487C02 EB15                    jmp 00487C19

* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00487BA0(C)
|
:00487C04 6A00                    push 00000000
:00487C06 668B0D6C7C4800          mov cx, word ptr [00487C6C]
:00487C0D B201                    mov dl, 01

* Possible StringData Ref from Code Obj ->"你输入的许可密匙是不正确的. 要确保准确, "
                                        ->"你应该直接总你的购买确认 E-Mail "
                                        ->"中复制并粘贴序列号. 如果你继续操作后碰到麻烦, "
                                        ->"请联系support@leapware.com."
                                  |
:00487C0F B8787C4800              mov eax, 00487C78
:00487C14 E81F2EFDFF              call 0045AA38

****************************************************************


用Ollydbg加載LeapFTP.exe,運行,填上用戶名:henhao 註冊碼:78787878(隨便亂填)
在Ollydbg裏面00487B99処F2下斷,點軟件的"確定"註冊!
程序停在00487B99処,F7進去,我是個菜鳥,進去后,就感到頭開始慢慢的變大~~~~~


00487D58  /$ 55            PUSH EBP
00487D59  |. 8BEC          MOV EBP,ESP
00487D5B  |. 83C4 DC        ADD ESP,-24
00487D5E  |. 53            PUSH EBX
00487D5F  |. 33DB          XOR EBX,EBX
00487D61  |. 895D DC        MOV DWORD PTR SS:[EBP-24],EBX
00487D64  |. 895D E0        MOV DWORD PTR SS:[EBP-20],EBX
00487D67  |. 895D EC        MOV DWORD PTR SS:[EBP-14],EBX
00487D6A  |. 894D F8        MOV DWORD PTR SS:[EBP-8],ECX
00487D6D  |. 8955 FC        MOV DWORD PTR SS:[EBP-4],EDX
00487D70  |. 8B45 FC        MOV EAX,DWORD PTR SS:[EBP-4]
00487D73  |. E8 B0C3F7FF    CALL LeapFTP.00404128
00487D78  |. 8B45 F8        MOV EAX,DWORD PTR SS:[EBP-8]
00487D7B  |. E8 A8C3F7FF    CALL LeapFTP.00404128
00487D80  |. 8B45 08        MOV EAX,DWORD PTR SS:[EBP+8]
00487D83  |. E8 A0C3F7FF    CALL LeapFTP.00404128
00487D88  |. 33C0          XOR EAX,EAX
00487D8A  |. 55            PUSH EBP
00487D8B  |. 68 BB7E4800    PUSH LeapFTP.00487EBB
00487D90  |. 64:FF30        PUSH DWORD PTR FS:[EAX]
00487D93  |. 64:8920        MOV DWORD PTR FS:[EAX],ESP
00487D96  |. 33C0          XOR EAX,EAX
00487D98  |. 8945 F0        MOV DWORD PTR SS:[EBP-10],EAX
00487D9B  |. 8945 F4        MOV DWORD PTR SS:[EBP-C],EAX
00487D9E  |. 8B45 FC        MOV EAX,DWORD PTR SS:[EBP-4]
00487DA1  |. E8 CEC1F7FF    CALL LeapFTP.00403F74              //計算註冊名位數
00487DA6  |. 8BD0          MOV EDX,EAX                        //位數edx
00487DA8  |. 85D2          TEST EDX,EDX                        //測試註冊名是否為0
00487DAA  |. 7E 33          JLE SHORT LeapFTP.00487DDF          //為0就跳
00487DAC  |. B8 01000000    MOV EAX,1  
===================開始計算======================                  
00487DB1  |> 8B4D FC        /MOV ECX,DWORD PTR SS:[EBP-4]      //取註冊名
00487DB4  |. 0FB64C01 FF    |MOVZX ECX,BYTE PTR DS:[ECX+EAX-1]  //逐位取注册名字符的 ASCII 值,这里以第一次计算为例,字符"h",ASCII 值 68
00487DB9  |. 0FAFC8        |IMUL ECX,EAX                      //ECX*EAX 乘以儅前位數,儅前是第一位,再乘以整數10。就是68*1*10=680,(若儅前註冊名的ASCII是第二位數,就是68*2*10)
00487DBC  |. 8BD9          |MOV EBX,ECX                        //ECX*EAX計算結果入ebx
00487DBE  |. C1E1 04        |SHL ECX,4                          //
00487DC1  |. 2BCB          |SUB ECX,EBX                        //減法ecx-ebx
00487DC3  |. 894D E8        |MOV DWORD PTR SS:[EBP-18],ECX      //計算結果入ecx
00487DC6  |. DB45 E8        |FILD DWORD PTR SS:[EBP-18]        //將計算結果十進製裝到st(0)
00487DC9  |. DC45 F0        |FADD QWORD PTR SS:[EBP-10]        //纍加以後裝到ST(0)
00487DCC  |. 8D0C80        |LEA ECX,DWORD PTR DS:[EAX+EAX*4]  //計算eax+eax*4,比如儅前是註冊名ASCII第一位數,計算方式就是:1+1*4,如果儅前是註冊名ASCII第二位,計算方式為:2+2*4,以此類推
00487DCF  |. 894D E4        |MOV DWORD PTR SS:[EBP-1C],ECX //結果入ecx
00487DD2  |. DB45 E4        |FILD DWORD PTR SS:[EBP-1C]        //將ecx的值十進製裝入st(0)
00487DD5  |. DEC1          |FADDP ST(1),ST                    //ST(0),ST(1)在這裏纍加
00487DD7  |. DD5D F0        |FSTP QWORD PTR SS:[EBP-10]        //保存,執行一次出棧
00487DDA  |. 9B            |WAIT
00487DDB  |. 40            |INC EAX  計數器加1
00487DDC  |. 4A            |DEC EDX
00487DDD  |.^75 D2          \JNZ SHORT LeapFTP.00487DB1        //根據註冊名ASCII個數循環

  我輸入的註冊名:henhao
  h 68*1*10-68*1+(1+1*4)=61D  
  e 65*2*10-65*2+(2+2*4)=BE0
  n 6E*3*10-6E*3+(3+3*4)=1365
  h 68*4*10-68*4+(4+4*4)=1874
  a 61*5*10-65*5+(5+5*4)=1c84
  o 6F*6*10-6F*6+(6+6*4)=2724
                        +
--------------------------------
                        =817E 十進製轉換=33150  
====================================================================
00487DDF  |> 8B45 08        MOV EAX,DWORD PTR SS:[EBP+8]      //取eax的值214065(一組固定註冊碼)
00487DE2  |. E8 BD0FF8FF    CALL LeapFTP.00408DA4              //轉換成16進製
00487DE7  |. 8945 E8        MOV DWORD PTR SS:[EBP-18],EAX      //送到eax
00487DEA  |. DB45 E8        FILD DWORD PTR SS:[EBP-18]        //裝入
00487DED  |. DD45 F0        FLD QWORD PTR SS:[EBP-10]          //裝入上靣循環計算的結果(33150)
00487DF0  |. DC4D F0        FMUL QWORD PTR SS:[EBP-10]        //[EBP-10]*[EBP-10]就是33150*33150
00487DF3  |. DEC1          FADDP ST(1),ST //st(0)+st(1)
00487DF5  |. DD5D F0        FSTP QWORD PTR SS:[EBP-10]        //裝入,然後再執行一次出棧

這裏的算法:
  33150*33150+214065=1099136565

====================================================================
00487DF8  |. 9B            WAIT
00487DF9  |. DD45 F0        FLD QWORD PTR SS:[EBP-10]
00487DFC  |. 83C4 F4        ADD ESP,-0C
00487DFF  |. DB3C24        FSTP TBYTE PTR SS:[ESP]                  ; |
00487E02  |. 9B            WAIT                                    ; |
00487E03  |. 8D45 EC        LEA EAX,DWORD PTR SS:[EBP-14]            ; |
00487E06  |. E8 C51EF8FF    CALL LeapFTP.00409CD0                    ; \LeapFTP.00409CD0
00487E0B  |. 8D45 E0        LEA EAX,DWORD PTR SS:[EBP-20]
00487E0E  |. 50            PUSH EAX
00487E0F  |. 8B55 F8        MOV EDX,DWORD PTR SS:[EBP-8]
00487E12  |. B8 D47E4800    MOV EAX,LeapFTP.00487ED4
00487E17  |. E8 44C4F7FF    CALL LeapFTP.00404260              //這裏処理註冊碼為214065-XXXXXXXXXXXX形式
00487E1C  |. 8BC8          MOV ECX,EAX
00487E1E  |. 49            DEC ECX
00487E1F  |. BA 01000000    MOV EDX,1
00487E24  |. 8B45 F8        MOV EAX,DWORD PTR SS:[EBP-8]
00487E27  |. E8 50C3F7FF    CALL LeapFTP.0040417C
............
.........
00487EB2  |. 8D45 08        LEA EAX,DWORD PTR SS:[EBP+8]
00487EB5  |. E8 3ABEF7FF    CALL LeapFTP.00403CF4
00487EBA  \. C3            RETN
00487EBB  .^E9 CCB8F7FF    JMP LeapFTP.0040378C
00487EC0  .^EB CE          JMP SHORT LeapFTP.00487E90
00487EC2  . 8BC3          MOV EAX,EBX
00487EC4  . 5B            POP EBX
00487EC5  . 8BE5          MOV ESP,EBP
00487EC7  . 5D            POP EBP
00487EC8  . C2 0400        RETN 4                  //返囘

---------------------------------------------------------------------
通過我輸入的註冊名henhao經過計算就得到了我的註冊碼:214065-1099136565
---------------------------------------------------------------------

【注册信息保存】:
HKEY_CURRENT_USER\Software\LeapWare\Registry\LeapFTP
UserKey    214065-1099136565
UserName  henhao
刪除這個,可以重新註冊!

----------------------------------------------------------------------
我想學習註冊機的製作,哪位老師能不能教教我這個怎麽用keymake製作註冊機,謝謝!!!
第一次寫的破文,望指正!!!
----------------------------------------------------------------------

                                                    好好學習






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