【bex64】使用x64dbg+VS2015 Spy++去除广告弹框

学习目标

移除WinRAR5.40(64位)炸弹广告。

由于我的系统为x64版本，所以安装了WinRAR（x64）版本。

◆ OD无法调试64位的程序，可以让我熟悉x64dbg进行调试的界面。

◆ 其次是这玩意儿真是太蛋疼了，无休止弹广告。

破 解 思 路

1）偷梁换柱

修改汇编函数段首为返回值（本次逆向破解采用的方法）

2）NOP掉整个函数内容

涉 及 知 识

• x64dbg工具快捷键与OD无异

• F9：运行

• bp CreateWindowExW：在x64dbg底部输入这行命令，对使用CreateWindowExW函数的位置断点。

• CreateWindowExW：该函数创建一个层叠式窗口、弹出式窗口或子窗口。

参数：

HWND CreateWindowEx(DWORD DdwExStyle, //窗口的扩展风格LPCTSTR lpClassName, //指向注册类名的指针LPCTSTR lpWindowName, //指向窗口名称的指针DWORD dwStyle, //窗口风格int x, //窗口的水平位置int y, //窗口的垂直位置int nWidth, //窗口的宽度int nHeight, //窗口的高度HWND hWndParent, //父窗口的句柄HMENU hMenu, //菜单的句柄或是子窗口的标识符HINSTANCE hInstance, //应用程序实例的句柄LPVOID lpParam //指向窗口的创建数据);

实现流程

【软件名称】：WinRar

【软件版本】：5.4

【外壳保护】：无

【操作系统】：Windows 10

既然是弹出窗口，首先要知道弹窗窗口的窗口类名，我使用的是VS2015里自带的工具Spy++ x64。

图1 调出Spy++ x64

图2 使用Spy++64查看WinRAR弹出的窗口类名为RarReminder

通过上诉步骤得到WinRAR的类名为RarReminder后，使用x64dbg工具载入WinRAR.exe。在命令的地方使用断点命令【bpCreateWindowExW】，在CreateWindowEx函数断下断点。F9运行到各个断点时观察广告窗口弹出的状态变化。

图3 使用断点命令【bp CreateWindowExW】

F9运行到出现RarReminder字样的地方，x64dbg这款工具还具备查看断点触发的次数的功能，通过【断点】选项卡看到断点共触发了30次才到这里。

图4 断点触发的次数

在堆栈窗口在call指令的地方按回车键返回到用户层函数。

图5 堆栈窗口信息

返回到00007FF6780AD4E8这个地址处，向上看会看到“;bl=7&v=540&a=64&src=wrr”这个很明显的广告地址。

汇编函数的代码如下：

00007FF6780AD077 | int3 |00007FF6780AD078 | mov qword ptr ss:[rsp+8],rbx |00007FF6780AD07D | mov qword ptr ss:[rsp+10],rbp |00007FF6780AD082 | mov qword ptr ss:[rsp+18],rsi |00007FF6780AD087 | push rdi |00007FF6780AD088 | push r12 |00007FF6780AD08A | push r13 |00007FF6780AD08C | push r14 |00007FF6780AD08E | push r15 |00007FF6780AD090 | mov eax,1080 |00007FF6780AD095 | call winrar.7FF6780F8BD0 |00007FF6780AD09A | sub rsp,rax |00007FF6780AD09D | mov rax,qword ptr ds:[7FF678148200] |00007FF6780AD0A4 | xor rax,rsp |00007FF6780AD0A7 | mov qword ptr ss:[rsp+1070],rax |00007FF6780AD0AF | xor r15d,r15d |00007FF6780AD0B2 | mov sil,cl |00007FF6780AD0B5 | cmp byte ptr ds:[7FF67819A204],r15b |00007FF6780AD0BC | je winrar.7FF6780AD0C6 |00007FF6780AD0BE | test dl,dl |00007FF6780AD0C0 | je winrar.7FF6780AD55D |00007FF6780AD0C6 | or rbp,FFFFFFFFFFFFFFFF |00007FF6780AD0CA | mov r12d,1 |00007FF6780AD0D0 | cmp dword ptr ds:[7FF678145EE4],r15d |00007FF6780AD0D7 | je winrar.7FF6780AD127 |00007FF6780AD0D9 | mov rcx,r15 |00007FF6780AD0DC | lea rbx,qword ptr ds:[7FF678145ED0] | 7FF678145ED0:"8g3#0w1$5r7%2ta"00007FF6780AD0E3 | mov r9,r15 |00007FF6780AD0E6 | mov r8d,480 |00007FF6780AD0EC | xor byte ptr ds:[r9+rbx],cl |00007FF6780AD0F0 | movabs rax,AAAAAAAAAAAAAAAB |00007FF6780AD0FA | mul rcx |00007FF6780AD0FD | add rcx,3 |00007FF6780AD101 | add r9,r12 |00007FF6780AD104 | shr rdx,1 | rdx:L"RarReminder"00007FF6780AD107 | add rcx,rdx | rdx:L"RarReminder"00007FF6780AD10A | and ecx,FFFFFF |00007FF6780AD110 | cmp r9,r8 | r8:L"WinRAR"00007FF6780AD113 | jb winrar.7FF6780AD0EC |00007FF6780AD115 | cmp dword ptr ds:[7FF678145EE4],r15d |00007FF6780AD11C | je winrar.7FF6780AD1B9 |00007FF6780AD122 | jmp winrar.7FF6780AD1AF |00007FF6780AD127 | mov ecx,4F8 |00007FF6780AD12C | call winrar.7FF678093F34 |00007FF6780AD131 | mov rbx,rax |00007FF6780AD134 | cmp word ptr ds:[rax],23 | 23:'#'00007FF6780AD138 | jne winrar.7FF6780AD154 |00007FF6780AD13A | cmp word ptr ds:[rax+2],23 | 23:'#'00007FF6780AD13F | jne winrar.7FF6780AD154 |00007FF6780AD141 | mov rax,rbp |00007FF6780AD144 | inc rax |00007FF6780AD147 | cmp word ptr ds:[rbx+rax*2],r15w |00007FF6780AD14C | jne winrar.7FF6780AD144 |00007FF6780AD14E | cmp rax,64 | 64:'d'00007FF6780AD152 | jae winrar.7FF6780AD15B |00007FF6780AD154 | mov rbx,qword ptr ds:[7FF678146350] | 7FF678146350:&L"##0C69??3n:rbtmee,fon)Okskcift.;kckgvgfa:$I&pitvdg8RBTMEE&iambhj`rdgf;gmuqq&ucswnmk=$P&euamiwcbprp`=$G=]1rbtmee,fon)Okskcift.;kckgvgfa:$I&pitvdg8RBTMEE&iambhj`rdgf;gmuqqexvhvbf&vftrmhl8$U&`vdjltfeuqug8$B;>WBQK=0W5hwrq>(-waqj`f)ajm,Hnpndleq)>hflbubad9$N&slssgb?WAQJ@F&ndngoocwcbe>cxtnp`d&pdvtkjn>$W&fpfhjrdgswwe>$@:"00007FF6780AD15B | mov edi,1000 |00007FF6780AD160 | lea rcx,qword ptr ss:[rsp+70] |00007FF6780AD165 | mov r8d,edi |00007FF6780AD168 | xor edx,edx |00007FF6780AD16A | call winrar.7FF6780F9ED0 |00007FF6780AD16F | lea rcx,qword ptr ds:[rbx+4] |00007FF6780AD173 | mov r8d,edi |00007FF6780AD176 | lea rdx,qword ptr ss:[rsp+70] |00007FF6780AD17B | call winrar.7FF67809CA7C |00007FF6780AD180 | lea rax,qword ptr ss:[rsp+70] |00007FF6780AD185 | mov r8,rbp |00007FF6780AD188 | inc r8 | r8:L"WinRAR"00007FF6780AD18B | cmp byte ptr ds:[rax+r8],r15b |00007FF6780AD18F | jne winrar.7FF6780AD188 |00007FF6780AD191 | lea rbx,qword ptr ds:[7FF678145ED0] | 7FF678145ED0:"8g3#0w1$5r7%2ta"00007FF6780AD198 | mov rcx,rbx |00007FF6780AD19B | lea rdx,qword ptr ss:[rsp+70] |00007FF6780AD1A0 | call winrar.7FF6780AC24C |00007FF6780AD1A5 | test al,al |00007FF6780AD1A7 | jne winrar.7FF6780AD1B9 |00007FF6780AD1A9 | mov r8d,480 |00007FF6780AD1AF | xor edx,edx |00007FF6780AD1B1 | mov rcx,rbx |00007FF6780AD1B4 | call winrar.7FF6780F9ED0 |00007FF6780AD1B9 | cmp byte ptr ds:[7FF6781857E4],r15b |00007FF6780AD1C0 | jne winrar.7FF6780AD1CE |00007FF6780AD1C2 | cmp dword ptr ds:[7FF678158474],28 | 28:'('00007FF6780AD1C9 | mov dil,r12b |00007FF6780AD1CC | ja winrar.7FF6780AD1D1 |00007FF6780AD1CE | mov dil,r15b |00007FF6780AD1D1 | test sil,sil |00007FF6780AD1D4 | je winrar.7FF6780AD528 |00007FF6780AD1DA | call winrar.7FF678078ECC |00007FF6780AD1DF | cmp eax,501 |00007FF6780AD1E4 | ja winrar.7FF6780AD1F6 |00007FF6780AD1E6 | test dword ptr ds:[7FF678145EE0],200 |00007FF6780AD1F0 | je winrar.7FF6780AD55D |00007FF6780AD1F6 | cmp byte ptr ds:[7FF678146250],r15b | 7FF678146250:";bl=7&v=540&a=64&src=wrr"00007FF6780AD1FD | je winrar.7FF6780AD55D |00007FF6780AD203 | mov byte ptr ds:[7FF678145FFB],r15b |00007FF6780AD20A | mov byte ptr ds:[7FF6781460FF],r15b |00007FF6780AD211 | mov byte ptr ds:[7FF67814634F],r15b |00007FF6780AD218 | test dil,dil |00007FF6780AD21B | jne winrar.7FF6780AD22F |00007FF6780AD21D | mov al,byte ptr ds:[7FF678145EE0] |00007FF6780AD223 | and al,80 |00007FF6780AD225 | neg al |00007FF6780AD227 | sbb eax,eax |00007FF6780AD229 | and dword ptr ds:[7FF678145EE8],eax |00007FF6780AD22F | cmp dword ptr ds:[7FF678145EF8],r15d |00007FF6780AD236 | lea rbp,qword ptr ds:[7FF678146250] | 7FF678146250:";bl=7&v=540&a=64&src=wrr"00007FF6780AD23D | mov bl,r15b |00007FF6780AD240 | lea rsi,qword ptr ds:[7FF67811BA38] | 7FF67811BA38:L"Interface\\Misc"00007FF6780AD247 | mov r13d,100 |00007FF6780AD24D | jbe winrar.7FF6780AD2A1 |00007FF6780AD24F | cmp byte ptr ds:[7FF6781857E4],r15b |00007FF6780AD256 | jne winrar.7FF6780AD2A1 |00007FF6780AD258 | xor r8d,r8d |00007FF6780AD25B | lea rdx,qword ptr ds:[7FF678120DC8] | rdx:L"RarReminder", 7FF678120DC8:L"RemShown"00007FF6780AD262 | mov rcx,rsi |00007FF6780AD265 | call winrar.7FF6780AB6AC |00007FF6780AD26A | cmp eax,dword ptr ds:[7FF678145EF8] |00007FF6780AD270 | jae winrar.7FF6780AD2A1 |00007FF6780AD272 | lea r8d,dword ptr ds:[rax+1] |00007FF6780AD276 | mov rcx,rsi |00007FF6780AD279 | lea rdx,qword ptr ds:[7FF678120DC8] | rdx:L"RarReminder", 7FF678120DC8:L"RemShown"00007FF6780AD280 | call winrar.7FF6780AC210 |00007FF6780AD285 | cmp byte ptr ds:[7FF678145EFC],r15b | 7FF678145EFC:";bl=7&v=$V&a=$A&src=wrr"00007FF6780AD28C | mov bl,r12b |00007FF6780AD28F | je winrar.7FF6780AD34E |00007FF6780AD295 | lea rdx,qword ptr ds:[7FF678145EFC] | rdx:L"RarReminder", 7FF678145EFC:";bl=7&v=$V&a=$A&src=wrr"00007FF6780AD29C | jmp winrar.7FF6780AD343 |00007FF6780AD2A1 | cmp dword ptr ds:[7FF678145FFC],r15d |00007FF6780AD2A8 | jbe winrar.7FF6780AD2F1 |00007FF6780AD2AA | test dil,dil |00007FF6780AD2AD | je winrar.7FF6780AD2F1 |00007FF6780AD2AF | xor r8d,r8d |00007FF6780AD2B2 | lea rdx,qword ptr ds:[7FF678120DE0] | rdx:L"RarReminder", 7FF678120DE0:L"ExpRemShown"00007FF6780AD2B9 | mov rcx,rsi |00007FF6780AD2BC | call winrar.7FF6780AB6AC |00007FF6780AD2C1 | cmp eax,dword ptr ds:[7FF678145FFC] |00007FF6780AD2C7 | jae winrar.7FF6780AD2F1 |00007FF6780AD2C9 | lea r8d,dword ptr ds:[rax+1] |00007FF6780AD2CD | mov rcx,rsi |00007FF6780AD2D0 | lea rdx,qword ptr ds:[7FF678120DE0] | rdx:L"RarReminder", 7FF678120DE0:L"ExpRemShown"00007FF6780AD2D7 | call winrar.7FF6780AC210 |00007FF6780AD2DC | cmp byte ptr ds:[7FF678146000],r15b | 7FF678146000:";bl=7&v=$V&a=$A&src=wrr"00007FF6780AD2E3 | mov bl,r12b |00007FF6780AD2E6 | je winrar.7FF6780AD34E |00007FF6780AD2E8 | lea rdx,qword ptr ds:[7FF678146000] | rdx:L"RarReminder", 7FF678146000:";bl=7&v=$V&a=$A&src=wrr"00007FF6780AD2EF | jmp winrar.7FF6780AD343 |00007FF6780AD2F1 | cmp dword ptr ds:[7FF678146100],r15d |00007FF6780AD2F8 | jbe winrar.7FF6780AD34E |00007FF6780AD2FA | cmp byte ptr ds:[7FF6781857E4],r15b |00007FF6780AD301 | je winrar.7FF6780AD34E |00007FF6780AD303 | xor r8d,r8d |00007FF6780AD306 | lea rdx,qword ptr ds:[7FF678120DF8] | rdx:L"RarReminder", 7FF678120DF8:L"RegRemShown"00007FF6780AD30D | mov rcx,rsi |00007FF6780AD310 | call winrar.7FF6780AB6AC |00007FF6780AD315 | cmp eax,dword ptr ds:[7FF678146100] |00007FF6780AD31B | jae winrar.7FF6780AD34E |00007FF6780AD31D | lea r8d,dword ptr ds:[rax+1] |00007FF6780AD321 | mov rcx,rsi |00007FF6780AD324 | lea rdx,qword ptr ds:[7FF678120DF8] | rdx:L"RarReminder", 7FF678120DF8:L"RegRemShown"00007FF6780AD32B | call winrar.7FF6780AC210 |00007FF6780AD330 | cmp byte ptr ds:[7FF678146104],r15b |00007FF6780AD337 | mov bl,r12b |00007FF6780AD33A | je winrar.7FF6780AD34E |00007FF6780AD33C | lea rdx,qword ptr ds:[7FF678146104] | rdx:L"RarReminder"00007FF6780AD343 | mov r8,r13 | r8:L"WinRAR"00007FF6780AD346 | mov rcx,rbp |00007FF6780AD349 | call winrar.7FF678099E48 |00007FF6780AD34E | call qword ptr ds:[<&GetTickCount>] |00007FF6780AD354 | mov ecx,eax |00007FF6780AD356 | mov eax,10624DD3 |00007FF6780AD35B | mul ecx |00007FF6780AD35D | mov eax,edx |00007FF6780AD35F | shr eax,6 |00007FF6780AD362 | cmp byte ptr ds:[7FF6781857E4],r15b |00007FF6780AD369 | je winrar.7FF6780AD382 |00007FF6780AD36B | mov ecx,dword ptr ds:[7FF678145EF4] |00007FF6780AD371 | test ecx,ecx |00007FF6780AD373 | je winrar.7FF6780AD3B2 |00007FF6780AD375 | xor edx,edx |00007FF6780AD377 | div ecx |00007FF6780AD379 | test edx,edx |00007FF6780AD37B | jne winrar.7FF6780AD3B2 |00007FF6780AD37D | mov bl,r12b |00007FF6780AD380 | jmp winrar.7FF6780AD3B2 |00007FF6780AD382 | test dil,dil |00007FF6780AD385 | jne winrar.7FF6780AD39B |00007FF6780AD387 | mov ecx,dword ptr ds:[7FF678145EEC] |00007FF6780AD38D | test ecx,ecx |00007FF6780AD38F | je winrar.7FF6780AD3B2 |00007FF6780AD391 | xor edx,edx |00007FF6780AD393 | div ecx |00007FF6780AD395 | test edx,edx |00007FF6780AD397 | jne winrar.7FF6780AD3B2 |00007FF6780AD399 | jmp winrar.7FF6780AD3BA |00007FF6780AD39B | mov ecx,dword ptr ds:[7FF678145EF0] |00007FF6780AD3A1 | test ecx,ecx |00007FF6780AD3A3 | je winrar.7FF6780AD3B2 |00007FF6780AD3A5 | xor edx,edx |00007FF6780AD3A7 | movzx ebx,bl |00007FF6780AD3AA | div ecx |00007FF6780AD3AC | test edx,edx |00007FF6780AD3AE | cmove ebx,r12d |00007FF6780AD3B2 | test bl,bl |00007FF6780AD3B4 | je winrar.7FF6780AD55D |00007FF6780AD3BA | test byte ptr ds:[7FF678145EE0],2 |00007FF6780AD3C1 | mov edi,16C80000 |00007FF6780AD3C6 | mov eax,16CC0000 |00007FF6780AD3CB | cmove edi,eax |00007FF6780AD3CE | test byte ptr ds:[7FF678145EE0],8 |00007FF6780AD3D5 | jne winrar.7FF6780AD3DD |00007FF6780AD3D7 | or edi,30000 |00007FF6780AD3DD | mov ecx,dword ptr ds:[7FF678146208] |00007FF6780AD3E3 | mov ebx,80000000 |00007FF6780AD3E8 | mov esi,ebx |00007FF6780AD3EA | mov ebp,ebx |00007FF6780AD3EC | mov r14d,ebx |00007FF6780AD3EF | test ecx,ecx |00007FF6780AD3F1 | je winrar.7FF6780AD494 |00007FF6780AD3F7 | cmp dword ptr ds:[7FF678146204],r15d |00007FF6780AD3FE | je winrar.7FF6780AD494 |00007FF6780AD404 | call winrar.7FF6780D08F8 |00007FF6780AD409 | mov ecx,21 | 21:'!'00007FF6780AD40E | mov ebx,eax |00007FF6780AD410 | call qword ptr ds:[<&GetSystemMetrics>] |00007FF6780AD416 | mov ecx,4 |00007FF6780AD41B | lea esi,dword ptr ds:[rbx+rax*2] |00007FF6780AD41E | call qword ptr ds:[<&GetSystemMetrics>] |00007FF6780AD424 | add esi,eax |00007FF6780AD426 | mov eax,dword ptr ds:[7FF678145EE0] |00007FF6780AD42C | test al,40 |00007FF6780AD42E | jne winrar.7FF6780AD435 |00007FF6780AD430 | test r13d,eax |00007FF6780AD433 | jne winrar.7FF6780AD43B |00007FF6780AD435 | add esi,dword ptr ds:[7FF67819A200] |00007FF6780AD43B | mov ecx,dword ptr ds:[7FF678146204] |00007FF6780AD441 | call winrar.7FF6780D088C |00007FF6780AD446 | mov ecx,20 | 20:' '00007FF6780AD44B | mov ebx,eax |00007FF6780AD44D | call qword ptr ds:[<&GetSystemMetrics>] |00007FF6780AD453 | xor edx,edx |00007FF6780AD455 | lea r8,qword ptr ss:[rsp+60] |00007FF6780AD45A | xor r9d,r9d |00007FF6780AD45D | lea ebx,dword ptr ds:[rbx+rax*2] |00007FF6780AD460 | lea ecx,dword ptr ds:[rdx+30] | rdx+30:L"BUTTON"00007FF6780AD463 | call qword ptr ds:[<&SystemParametersIn |00007FF6780AD469 | mov eax,dword ptr ss:[rsp+68] |00007FF6780AD46D | cmp ebx,eax |00007FF6780AD46F | mov ebp,eax |00007FF6780AD471 | cmovl ebp,ebx |00007FF6780AD474 | sub eax,ebp |00007FF6780AD476 | cdq |00007FF6780AD477 | sub eax,edx |00007FF6780AD479 | sar eax,1 |00007FF6780AD47B | mov ebx,eax |00007FF6780AD47D | mov eax,dword ptr ss:[rsp+6C] |00007FF6780AD481 | cmp esi,eax |00007FF6780AD483 | mov r14d,eax |00007FF6780AD486 | cmovl r14d,esi |00007FF6780AD48A | sub eax,r14d |00007FF6780AD48D | cdq |00007FF6780AD48E | sub eax,edx |00007FF6780AD490 | sar eax,1 |00007FF6780AD492 | mov esi,eax |00007FF6780AD494 | mov rdx,r13 | rdx:L"RarReminder"00007FF6780AD497 | lea rcx,qword ptr ds:[7FF678146250] | 7FF678146250:";bl=7&v=540&a=64&src=wrr"00007FF6780AD49E | call winrar.7FF6780AC6D4 |00007FF6780AD4A3 | mov rcx,qword ptr ds:[7FF67818E038] |00007FF6780AD4AA | lea r8,qword ptr ds:[7FF67811C090] | r8:L"WinRAR", 7FF67811C090:L"WinRAR"00007FF6780AD4B1 | mov qword ptr ss:[rsp+58],r15 |00007FF6780AD4B6 | lea rdx,qword ptr ds:[7FF678120E10] | rdx:L"RarReminder", 7FF678120E10:L"RarReminder"00007FF6780AD4BD | mov qword ptr ss:[rsp+50],rcx |00007FF6780AD4C2 | mov r9d,edi |00007FF6780AD4C5 | mov qword ptr ss:[rsp+48],r15 |00007FF6780AD4CA | xor ecx,ecx |00007FF6780AD4CC | mov qword ptr ss:[rsp+40],r15 |00007FF6780AD4D1 | mov dword ptr ss:[rsp+38],r14d |00007FF6780AD4D6 | mov dword ptr ss:[rsp+30],ebp |00007FF6780AD4DA | mov dword ptr ss:[rsp+28],esi |00007FF6780AD4DE | mov dword ptr ss:[rsp+20],ebx |00007FF6780AD4E2 | call qword ptr ds:[<&CreateWindowExW>] |00007FF6780AD4E8 | test byte ptr ds:[7FF678145EE0],r12b |00007FF6780AD4EF | je winrar.7FF6780AD516 |00007FF6780AD4F1 | mov dword ptr ss:[rsp+30],3 |00007FF6780AD4F9 | xor r9d,r9d |00007FF6780AD4FC | mov dword ptr ss:[rsp+28],r15d |00007FF6780AD501 | xor r8d,r8d |00007FF6780AD504 | or rdx,FFFFFFFFFFFFFFFF | rdx:L"RarReminder"00007FF6780AD508 | mov dword ptr ss:[rsp+20],r15d |00007FF6780AD50D | mov rcx,rax |00007FF6780AD510 | call qword ptr ds:[<&SetWindowPos>] |00007FF6780AD516 | cmp qword ptr ds:[7FF678158370],r15 |00007FF6780AD51D | je winrar.7FF6780AD55D |00007FF6780AD51F | mov byte ptr ds:[7FF67819A204],r12b |00007FF6780AD526 | jmp winrar.7FF6780AD55D |00007FF6780AD528 | test dil,dil |00007FF6780AD52B | je winrar.7FF6780AD55D |00007FF6780AD52D | mov byte ptr ds:[7FF67819A204],r12b |00007FF6780AD534 | call qword ptr ds:[<&GetFocus>] |00007FF6780AD53A | mov rcx,qword ptr ds:[7FF67818E030] |00007FF6780AD541 | lea r9,qword ptr ds:[7FF6780E0BFC] |00007FF6780AD548 | mov r8,rax | r8:L"WinRAR"00007FF6780AD54B | mov qword ptr ss:[rsp+20],r15 |00007FF6780AD550 | lea rdx,qword ptr ds:[7FF678120E28] | rdx:L"RarReminder", 7FF678120E28:L"REMINDER"00007FF6780AD557 | call qword ptr ds:[<&DialogBoxParamW>] |00007FF6780AD55D | mov rcx,qword ptr ss:[rsp+1070] |00007FF6780AD565 | xor rcx,rsp |00007FF6780AD568 | call winrar.7FF6780F8C40 |00007FF6780AD56D | lea r11,qword ptr ss:[rsp+1080] |00007FF6780AD575 | mov rbx,qword ptr ds:[r11+30] |00007FF6780AD579 | mov rbp,qword ptr ds:[r11+38] |00007FF6780AD57D | mov rsi,qword ptr ds:[r11+40] |00007FF6780AD581 | mov rsp,r11 |00007FF6780AD584 | pop r15 |00007FF6780AD586 | pop r14 |00007FF6780AD588 | pop r13 |00007FF6780AD58A | pop r12 |00007FF6780AD58C | pop rdi |00007FF6780AD58D | ret |

可以看到：

函数头部地址为：00007FF6780AD078 | mov qword ptr ss:[rsp+8],rbx

函数尾部地址为：ret

修改之后，函数头部地址为：00007FF6780AD078 | ret

图6 修改函数头部反汇编指令

修改之后，鼠标右键选择补丁-修补文件。

图7 选择补丁

图8 修补文件

小功告成！再次打开rar弹窗广告已经消失了。可是评估版本字样还在，追求完美可以选择使用资源管理工具去除字样。

图9 去除弹窗

我使用了Restorator这款资源修改软件，不过使用这款软件的少侠们可就小心了。因为这款资源软件会自动修改.exe扩展名的关联，请切记在虚拟机下运行。

图10 导出资源文件.rc

导出资源文件.rc后，用notepad++打开.rc后缀的文件。修改【评估版本】为你想要修改的文字。然后再导入到资源中。操作比较简单，就不赘述了！

图11 大功告成！

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