简单算法——网络电话 Talking anywhere 5.0
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简单算法——网络电话 Talking anywhere 5.0
下载页面：http://www.softreg.com.cn/shareware_view.asp?id=/D0DCF113-BAEA-41A8-B5F9-2A6B594C6D12/
最新版本: 5.0v
软件大小：204K
下载次数：共166次
适用平台: WIN9x, Win2000, WinNT
作者主页: http://www.zjjs.net/iptalk/
【软件简介】：网络电话Talking anywhere 是绿色通讯软件，双方都运行后，一方输入对方IP地址即可进行通话。低带宽，高清晰语音！最大特点在于语音清晰，无同类网络电话的复杂性和通语延时。采用MPEG2高压缩比，及点对点通讯技术！无需服务器支持！如果你好用的话，请送给你的好朋友使用！如果不清楚你的IP地址或对方IP地址的话，可以登陆我们的帮助站点：
http://www.zjjs.net/iptalk/
http://www.zjjs.net/iptalk/help.htm
【软件限制】：NAG
【作者声明】：初学Crack，只是感兴趣，没有其它目的。失误之处敬请诸位大侠赐教！
【破解工具】：TRW2000娃娃修改版、Ollydbg1.09、FI2.5、W32Dasm8.93黄金版
—————————————————————————————————
【过 程】：
这个软件是 ljp 朋友提出来的。试了试，应该算是明码比较了。只是仿佛有点VB的味道。
iptalk.exe 用FI看不认识。C++编写。好了，直接调试吧。可以拦截出错提示到达下面的地址。
系统ID： 95065
姓 名： fly
公 司：【OCN】
试炼码： 13572468
—————————————————————————————————
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492D20(C)
|
:00492D2C 8B3DF4EB4900 mov edi, dword ptr [0049EBF4]
:00492D32 83C9FF or ecx, FFFFFFFF
:00492D35 33C0 xor eax, eax
:00492D37 F2 repnz
:00492D38 AE scasb
:00492D39 8B3DD4EB4900 mov edi, dword ptr [0049EBD4]
:00492D3F F7D1 not ecx
:00492D41 49 dec ecx
:00492D42 8D740C20 lea esi, dword ptr [esp+ecx+20]
====>ESI=13572468
:00492D46 83C9FF or ecx, FFFFFFFF
:00492D49 F2 repnz
:00492D4A AE scasb
:00492D4B F7D1 not ecx
:00492D4D 49 dec ecx
:00492D4E 8BD6 mov edx, esi
:00492D50 2BD1 sub edx, ecx
:00492D52 8BFE mov edi, esi
:00492D54 83C9FF or ecx, FFFFFFFF
:00492D57 F2 repnz
:00492D58 AE scasb
:00492D59 F7D1 not ecx
:00492D5B 49 dec ecx
:00492D5C 88040A mov byte ptr [edx+ecx], al
:00492D5F 8BCE mov ecx, esi
:00492D61 E84A5B0000 call 004988B0
====>检测输入的密码是否是数字？
:00492D66 85C0 test eax, eax
:00492D68 750A jne 00492D74
====>不跳则OVER！
:00492D6A B8FDFFFFFF mov eax, FFFFFFFD
:00492D6F E9F9000000 jmp 00492E6D
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492D68(C)
|
:00492D74 BA64B14900 mov edx, 0049B164
:00492D79 8BCE mov ecx, esi
====>13572468 入 ECX
:00492D7B E8705B0000 call 004988F0
====>此CALL将13572468转换为16进制值表示
:00492D80 8BF8 mov edi, eax
====>EDI=EAX=CF1974（H）=13572468（D）
:00492D82 66A154EC4900 mov ax, word ptr [0049EC54]
:00492D88 663D0100 cmp ax, 0001
:00492D8C 7546 jne 00492DD4
:00492D8E 66A1FAEB4900 mov ax, word ptr [0049EBFA]
:00492D94 8B1500EC4900 mov edx, dword ptr [0049EC00]
:00492D9A 33C9 xor ecx, ecx
:00492D9C 8ACC mov cl, ah
:00492D9E 25FF000000 and eax, 000000FF
:00492DA3 8BF1 mov esi, ecx
:00492DA5 8BC8 mov ecx, eax
:00492DA7 E854FBFFFF call 00492900
:00492DAC 8B15FCEB4900 mov edx, dword ptr [0049EBFC]
:00492DB2 03F8 add edi, eax
:00492DB4 6685F6 test si, si
:00492DB7 7504 jne 00492DBD
:00492DB9 33C9 xor ecx, ecx
:00492DBB EB03 jmp 00492DC0
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492DB7(C)
|
:00492DBD 8D4E01 lea ecx, dword ptr [esi+01]
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492DBB(U)
|
:00492DC0 E83BFBFFFF call 00492900
:00492DC5 8BC8 mov ecx, eax
:00492DC7 85C9 test ecx, ecx
:00492DC9 7438 je 00492E03
:00492DCB 8BC7 mov eax, edi
:00492DCD 99 cdq
:00492DCE F7F9 idiv ecx
:00492DD0 8BC2 mov eax, edx
:00492DD2 EB27 jmp 00492DFB
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492D8C(C)
|
:00492DD4 663D0200 cmp ax, 0002
:00492DD8 7529 jne 00492E03
:00492DDA 8B15FCEB4900 mov edx, dword ptr [0049EBFC]
:00492DE0 A100EC4900 mov eax, dword ptr [0049EC00]
====>EAX=fly
:00492DE5 8B0D38ED4900 mov ecx, dword ptr [0049ED38]
====>ECX=17359（H）=95605（D） 即：系统ID号
:00492DEB 52 push edx
:00492DEC 668B15FAEB4900 mov dx, word ptr [0049EBFA]
====>DX=6502 此处的6502是如何得出的？烦请指教！
:00492DF3 50 push eax
:00492DF4 E897FBFFFF call 00492990
====>算法！进入！此CALL运算得出 EAX=212DB
:00492DF9 2BC7 sub eax, edi
====>EAX=212DB-CF1974=FF32F967（H）=-13436569（D）
呵呵，如果此处相等即OK！所以真码=EAX=212DB（H）=135899（D）
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492DD2(U)
|
:00492DFB 85C0 test eax, eax
:00492DFD 0F848E000000 je 00492E91
====>应跳！
* Referenced by a (U)nconditional or (C)onditional Jump at Addresses:
|:00492DC9(C), :00492DD8(C)
|
:00492E03 B8FBFFFFFF mov eax, FFFFFFFB
:00492E08 EB63 jmp 00492E6D
下面应该是保存注册信息了。~Q~~Q~~Q~~Q~
* Referenced by a (U)nconditional or (C)onditional Jump at Addresses:
|:00492C71(C), :00492C7A(C), :00492DFD(C), :00492E1C(C), :00492E20(C)
|:00492E68(C)
|
:00492E91 668B0DCEEB4900 mov cx, word ptr [0049EBCE]
:00492E98 66394C2410 cmp word ptr [esp+10], cx
:00492E9D 0F8D16010000 jnl 00492FB9
:00492EA3 8B0D04EF4900 mov ecx, dword ptr [0049EF04]
:00492EA9 B800002000 mov eax, 00200000
:00492EAE 85C8 test eax, ecx
:00492EB0 7518 jne 00492ECA
:00492EB2 8BD1 mov edx, ecx
:00492EB4 8B0D70EE4900 mov ecx, dword ptr [0049EE70]
:00492EBA 0BD0 or edx, eax
:00492EBC 33C8 xor ecx, eax
:00492EBE 891504EF4900 mov dword ptr [0049EF04], edx
:00492EC4 890D70EE4900 mov dword ptr [0049EE70], ecx
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492EB0(C)
|
:00492ECA 8B742410 mov esi, dword ptr [esp+10]
:00492ECE BA01000000 mov edx, 00000001
:00492ED3 8BCE mov ecx, esi
:00492ED5 E816F7FFFF call 004925F0
:00492EDA 85C0 test eax, eax
:00492EDC 0F8493000000 je 00492F75
:00492EE2 8B0D04EF4900 mov ecx, dword ptr [0049EF04]
:00492EE8 8B2D70EE4900 mov ebp, dword ptr [0049EE70]
:00492EEE 0FBFD6 movsx edx, si
:00492EF1 8B742418 mov esi, dword ptr [esp+18]
:00492EF5 B8FFFFDFFF mov eax, FFDFFFFF
:00492EFA 23C8 and ecx, eax
:00492EFC 33E8 xor ebp, eax
:00492EFE A1ECEB4900 mov eax, dword ptr [0049EBEC]
:00492F03 890D04EF4900 mov dword ptr [0049EF04], ecx
:00492F09 C1E206 shl edx, 06
:00492F0C 892D70EE4900 mov dword ptr [0049EE70], ebp
:00492F12 6810100000 push 00001010
:00492F17 8B4C0238 mov ecx, dword ptr [edx+eax+38]
:00492F1B 685CB14900 push 0049B15C
:00492F20 51 push ecx
:00492F21 56 push esi
:00492F22 FF1500F24900 call dword ptr [0049F200]
:00492F28 6801100000 push 00001001
:00492F2D 56 push esi
:00492F2E FF15B8F14900 call dword ptr [0049F1B8]
:00492F34 8BC8 mov ecx, eax
:00492F36 E8B5EAFFFF call 004919F0
:00492F3B 8B1528ED4900 mov edx, dword ptr [0049ED28]
:00492F41 33F6 xor esi, esi
:00492F43 56 push esi
:00492F44 6802800000 push 00008002
:00492F49 6811010000 push 00000111
:00492F4E 52 push edx
:00492F4F 6689358EEC4900 mov word ptr [0049EC8E], si
:00492F56 6689359AB24900 mov word ptr [0049B29A], si
:00492F5D FF1508F24900 call dword ptr [0049F208]
:00492F63 66893526ED4900 mov word ptr [0049ED26], si
:00492F6A 5F pop edi
:00492F6B 5E pop esi
:00492F6C 5D pop ebp
:00492F6D 5B pop ebx
:00492F6E 81C4AC000000 add esp, 000000AC
:00492F74 C3 ret
—————————————————————————————————
进入算法CALL：492DF4 call 00492990
* Referenced by a CALL at Addresses:
|:00492DF4 , :004931DA
|
:00492990 53 push ebx
:00492991 56 push esi
:00492992 668BDA mov bx, dx
====>BX=DX=6502
:00492995 8BF1 mov esi, ecx
====>ESI=17359
:00492997 8B54240C mov edx, dword ptr [esp+0C]
====>EDX=fly
:0049299B 8ACB mov cl, bl
====>CL=BL=02
:0049299D 57 push edi
:0049299E 81E1FF000000 and ecx, 000000FF
====>ECX=17302 & 000000FF=02
呵呵，此处不明白了！请各位老师指教17302是如何得出的？
:004929A4 E857FFFFFF call 00492900
====>进入子运算CALL 1 得出下面的EAX=9159
:004929A9 8B542414 mov edx, dword ptr [esp+14]
:004929AD 8BF8 mov edi, eax
====>EDI=EAX=9159
:004929AF 33C0 xor eax, eax
:004929B1 8AC7 mov al, bh
====>AL=BH=65
呵呵，此处不明白了！
:004929B3 6685C0 test ax, ax
:004929B6 7512 jne 004929CA
====>跳下去继续运算！
:004929B8 33C9 xor ecx, ecx
:004929BA E841FFFFFF call 00492900
:004929BF 03FE add edi, esi
:004929C1 0FAFC7 imul eax, edi
:004929C4 5F pop edi
:004929C5 5E pop esi
:004929C6 5B pop ebx
:004929C7 C20800 ret 0008
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:004929B6(C)
|
:004929CA 8D4801 lea ecx, dword ptr [eax+01]
====>ECX=66
:004929CD E82EFFFFFF call 00492900
====>进入子运算CALL 2 得出下面的EAX值！
:004929D2 03C7 add eax, edi
====>EAX=E29 + 9159=9F82
:004929D4 03C6 add eax, esi
====>EAX=9F82 + 17359=212DB
:004929D6 5F pop edi
:004929D7 5E pop esi
:004929D8 5B pop ebx
:004929D9 C20800 ret 0008
—————————————————————————————————
1、进入子运算CALL 1：4929A4 call 00492900
2、进入子运算CALL 2：4929CD call 00492900
* Referenced by a CALL at Addresses:
|:004929A4 , :004929BA , :004929CD , :00492DA7 , :00492DC0
|
:00492900 53 push ebx
:00492901 8BDA mov ebx, edx
:00492903 56 push esi
:00492904 8BF1 mov esi, ecx
:00492906 85DB test ebx, ebx
:00492908 7472 je 0049297C
:0049290A 803B00 cmp byte ptr [ebx], 00
:0049290D 746D je 0049297C
:0049290F 57 push edi
:00492910 8BFB mov edi, ebx
:00492912 83C9FF or ecx, FFFFFFFF
:00492915 33C0 xor eax, eax
:00492917 F2 repnz
:00492918 AE scasb
:00492919 F7D1 not ecx
:0049291B 49 dec ecx
====>ECX=3 上面代码是取用户名的位数
:0049291C 6685F6 test si, si
:0049291F 7443 je 00492964
:00492921 6683FE01 cmp si, 0001
:00492925 743D je 00492964
:00492927 81E6FFFF0000 and esi, 0000FFFF
:0049292D 8BC6 mov eax, esi
1、 ====>EAX=ESI=2
—————————————————————
2、 ====>EAX=ESI=66
:0049292F 99 cdq
:00492930 F7F9 idiv ecx
1、 ====>EDX=2 % 3=2
—————————————————————
2、 ====>EDX=66 % 3=0
:00492932 0FBE041A movsx eax, byte ptr [edx+ebx]
====>依据EDX值从 fly 中取字符值
1、 ====>EAX=79
—————————————————————
2、 ====>EAX=66
:00492936 0FAFC6 imul eax, esi
1、 ====>EAX=79 * 02=F2
—————————————————————
2、 ====>EAX=66 * 66=28A4
:00492939 0FAFC2 imul eax, edx
1、 ====>EAX=F2 * 02=1E4
—————————————————————
2、 ====>EAX=28A4 * 0=0
:0049293C 03C1 add eax, ecx
1、 ====>EAX=1E4 + 3=1E7
—————————————————————
2、 ====>EAX=0 + 3=3
:0049293E 33D2 xor edx, edx
:00492940 85C9 test ecx, ecx
:00492942 7E16 jle 0049295A
:00492944 8BF9 mov edi, ecx
====>EDI=ECX=3
:00492946 2BFE sub edi, esi
1、 ====>EDI=3 - 2=1
—————————————————————
2、 ====>EDI=3 - 66=FFFFFF9D（H）=-99（D）
:00492948 83C76F add edi, 0000006F
1、 ====>EDI=1 + 0000006F=70
—————————————————————
2、 ====>EDI=FFFFFF9D + 0000006F=C
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492958(C)
|
:0049294B 0FBE341A movsx esi, byte ptr [edx+ebx]
====>依次从 fly 中取字符值
① ====>ESI=66
② ====>ESI=6C
③ ====>ESI=79
:0049294F 0FAFF7 imul esi, edi
1、① ====>ESI=66 * 70=2CA0
1、② ====>ESI=6C * 6F=2ED4
1、③ ====>ESI=79 * 6E=33FE
—————————————————————
2、① ====>ESI=66 * C=4C8
2、② ====>ESI=6C * B=4A4
2、③ ====>ESI=79 * A=4BA
:00492952 03C6 add eax, esi
1、① ====>EAX=1E7 + 2CA0=2E87
1、② ====>EAX=2E87 + 2ED4=5D5B
1、③ ====>EAX=5D5B + 33FE=9159
—————————————————————
2、① ====>EAX=66 + 4C8=4CB
2、② ====>EAX=4CB + 4A4=96F
2、③ ====>EAX=4BA + 96F=E29
:00492954 42 inc edx
====>EDI依次增1
:00492955 4F dec edi
====>EDI依次减1
:00492956 3BD1 cmp edx, ecx
:00492958 7CF1 jl 0049294B
====>循环用户名位数次！3次
* Referenced by a (U)nconditional or (C)onditional Jump at Address:
|:00492942(C)
|
:0049295A 85C0 test eax, eax
1、 ====>EAX=9159
—————————————————————
2、 ====>EAX=E29
:0049295C 7D1A jge 00492978
:0049295E 5F pop edi
:0049295F 5E pop esi
:00492960 F7D8 neg eax
:00492962 5B pop ebx
:00492963 C3 ret
—————————————————————————————————
【KeyMake之{fly45th}内存注册机】：
中断地址：492DF9
中断次数：1
第一字节：2B
指令长度：2
寄存器方式：EAX 十进制
注意：试炼码必须全部输入数字！
—————————————————————————————————
【注册信息保存】：
1、注册表中
REGEDIT4
[HKEY_CLASSES_ROOT\{MKtTBF8o21}]
@="NUQ=$!!1!$1!8!$M!$A#I!D5Q.4)U!!!!!!\"=R1!!>`]R-T5X-D1W/!!!!!!!N!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#!!!!!!!!N!!!!!!!1!.-(!Q!&!!Y!!!!Q!$M!0A-!!!)!!!!!!!!!!*W_8Q&G<(E!:GRZ7=WNZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!""
2、REGEDIT4
[HKEY_CLASSES_ROOT\SystemAppIDs]
@="6!1!!!!!!!!\"\\45NU6%*'/']S-8U!"
3、C:\WINDOWS\SYSTEM 下的access.ctl文件。呵呵，找这个狡猾的家伙还费了点劲。
如果想重新注册必须把以上3处删干净，否则，呵呵……
—————————————————————————————————
【整 理】：
系统ID： 95065
姓 名： fly
公 司：【OCN】 （呵呵，公司名不参与运算，可以随意输入）
密 码： 135899
—————————————————————————————————
Cracked By 巢水工作坊——fly【OCN】
2003-03-14 16:26:02
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