软件名称: vanBasco's Midi Player
软件版本: 2.03
软件大小: 557KB
软件授权: 共享软件
使用平台: Win95/98/NT
发布公司: http://www.vanbasco.com
软件简介: 是一套标准的MIDI和Karaoke播放软件。它的界面刻意地被设计成有效率和容易使用,有强大的功能和令人激赏的使用者界面,其叁层界面分别为:第一层为钢琴
显示器,第二层为播放界面,第三层为Karaoke设定,可设不同的音色演奏方式,或伴唱音乐,有等化器等。
软件下载: vmidi32.exe
使用工具:W32dasm
破解难易度:易
由于没有输入密码的地方,只好用W32dasm,反编译后,很容易找到线索
双击"Registered Version"到此段程序.
* Reference To: USER32.SendMessageA, Ord:0214h
|
:0041820D FF1584944300 Call dword ptr
[00439484]
:00418213 FF75EC
push [ebp-14]
:00418216 8D4E5C
lea ecx, dword ptr [esi+5C]
:00418219 E8E4590100 call 0042DC02
:0041821E E8E8DCFEFF call 00405F0B
<---关键CALL
:00418223 83F864
cmp eax, 00000064
:00418226 7E69
jle 00418291 <----小于等于100
转过期提示
:00418228 8D86DC000000 lea eax, dword
ptr [esi+000000DC]
:0041822E 50
push eax
:0041822F 8D45F0
lea eax, dword ptr [ebp-10]
* Possible StringData Ref from Data Obj ->"Registered Version."
|
:00418232 68EC794400 push 004479EC
:00418237 50
push eax
:00418238 E858650100 call 0042E795
:0041823D 68CC794400 push 004479CC
:00418242 50
push eax
:00418243 8D45E8
lea eax, dword ptr [ebp-18]
:00418246 C645FC01 mov
[ebp-04], 01
:0041824A 50
push eax
:0041824B E8D1640100 call 0042E721
:00418250 FF30
push dword ptr [eax]
:00418252 8D8E98000000 lea ecx, dword
ptr [esi+00000098]
:00418258 C645FC02 mov
[ebp-04], 02
:0041825C E8A1590100 call 0042DC02
:00418261 8D4DE8
lea ecx, dword ptr [ebp-18]
:00418264 C645FC01 mov
[ebp-04], 01
:00418268 E86B620100 call 0042E4D8
:0041826D 8D4DF0
lea ecx, dword ptr [ebp-10]
:00418270 885DFC
mov byte ptr [ebp-04], bl
:00418273 E860620100 call 0042E4D8
:00418278 53
push ebx
调出关键CALL,可以看到有若干调用,要改当然改此处啦,否则1,2,3,4...32个
调用够你改一阵子的.
* Referenced by a CALL at Addresses:
|:0040ECA7 , :0040ED3A , :0040EE49 , :0040F4FA , :0040FA05
|:0040FA0E , :00410520 , :00410648 , :00410767 , :0041095B
|:00410C15 , :00410CE8 , :00410EA5 , :00411B53 , :0041206A
|:0041209F , :004120DD , :0041212F , :00412857 , :00412FAF
|:00413094 , :0041317A , :00415AF0 , :004161B2 , :00416EF6
|:00416FD9 , :00417454 , :00417F06 , :0041821E , :004182AE
|:004182C3 , :00418395
|
:00405F0B A1C0644400 mov eax,
dword ptr [004464C0]
:00405F10 C3
ret
任意查看了上面的几个CALL,发现都是与100比较,因此考虑将此CALL的
mov eax, dword ptr [004464C0]改为mov eax, 00000065
机器码是B8 65 00 00 00
- 标 题:初学者(9) (3千字)
- 作 者:liutong
- 时 间:2000-5-7 23:16:45
- 链 接:http://bbs.pediy.com