Edx

03C2 add eax, edx :004AA45E 0FB75706 movzx edx, word ptr [edi+06] :004AA462 03C2 add eax, edx :004AA464 0FB75708 movzx edx, word ptr [edi+08] :004AA468 0FB74F0A movzx ecx, word ptr [edi+0A] :004AA46C 03D1 add edx, ecx :004AA46E 0FB74F0C movzx ecx, word ptr [edi+0C] :004AA472 03D1 add edx, ecx :004AA474 0FB74F0E movzx ecx, word ptr [edi+0E] :004AA478 03D1 add edx, ecx :004AA47A 3BC2 cmp eax, edx :004AA47C 751E jne 004AA49C :004AA47E 663B7708 cmp si, word ptr [edi+08] :004AA482 7518 jne 004AA49C 數字的個數是否等於s5(中文算2個 。我此處的si＝2f) :004AA484 0FB74708 movzx eax, word ptr [edi+08] :004AA488 0FB717 movzx edx, word ptr [edi] :004AA48B 03C2 add eax, edx :004AA48D 0FB7570A movzx edx, word ptr [edi+0A] :004AA491 3BC2 cmp eax, edx :004AA493 7507 jne 004AA49C :004AA495 66837F0C64 cmp word ptr [edi+0C], 0064 :004AA49A 743B je 004AA4D7 * Referenced by a (U)nconditional or (C)onditional Jump at Addresses: |:004AA394(C), :004AA3D1(C), :004AA40F(C), :004AA44D(C), :004AA47C(C) |:004AA482(C), :004AA493(C) | :004AA49C 6A10 push 00000010 :004AA49E 684CA64A00 push 004AA64C :004AA4A3 6888A64A00 push 004AA688 :004AA4A8 8B45FC mov eax, dword ptr [ebp-04] :004AA4AB E870E9F8FF call 00438E20 :004AA4B0 50 push eax :004AA4B1 E826CFF5FF call 004073DC 這樣我們就可以推算出註冊碼的條件了。 u1=73h u2=75h c1=73h c2=75h s1 s2 s3 s4 s5 s6 s7 s8 u2 + c2 = s1 234 u1 + c1 = s2 230 u1 + u2 = s3 232 c1 + c2 = s4 232 s1 + s2 + s3 + s4 = s5 + s6 + s7 + s8 s1 + s5 = s6 s6 = 100 sum = s5 (當使用者名稱只為一中文字時，sum＝1Ah）47 s1. 234 s2. 230 s3. 232 s4. 232 s5. 047 s6. 281 s7. 100 s8. 500 這樣，我的 使用者名稱：sunwk 公司名：sunwk 註冊碼：234230232232047281100500 end.

With a catalog of more than 4000 courses, edX should have something for every online learner, no matter the subject they’re interested in. However, free course access on edX is typically limited: most often, you’ll only have access to part of the course content and only for a limited time.Fortunately, this limitation doesn’t apply to all courses. At Class Central, we’ve scoured the edX catalog to identify courses that still offer free unlimited access, and we’ve put them in a handy list that we’ll continue to update.If you enjoy this list, you may also want to have a look at our list of 1800+ Coursera Courses Still Completely Free.Is edX free?There once was a time when MOOCs (or massive open online courses) were free, including those offered on edX. But in their quest for a sustainable business model, one after the other, online course platforms started introducing paywalls. We reported on this as it happened.Nowadays, if you want unrestricted access to an edX course, you’ll typically have to pay. More specifically, most edX courses offer the following access modalities:Paid full access: In this modality, you’ll have access to all course material and graded assignments, and upon completion of the course, you’ll earn a verified certificate of completion.Free audit: In this modality, you’ll have temporary access to the course material (usually, a month), but you won’t have access to graded assignments, and you won’t earn a certificate upon completion.For example, the popular edX online course Introduction to Computational Thinking and Data Science in our Best Courses Guide (BCG) to the best data science courses offers these two modalities, as you can see below:The most common access modalities on edX: Paid full access and free audit.Fully-Free edX CoursesHowever, while most edX courses default to the two modalities above, fortunately for us, some

Esi; mov esi, dword ptr [esp + 0x18]; add esp, 0x1c; ret ; 0x000076f8: mov eax, dword ptr [eax]; mov byte ptr [eax + edx], 0; add esp, 0x18; pop ebx; ret ; ./Ropper.py --file /bin/ls --search "mov [%], edx" 0x000067ed: mov dword ptr [esp + 4], edx; mov edx, dword ptr [ebp + 0x14]; mov dword ptr [esp], edx; call eax; 0x00006f4e: mov dword ptr [ecx + 0x14], edx; add esp, 0x2c; pop ebx; pop esi; pop edi; pop ebp; ret ; 0x000084b8: mov dword ptr [eax], edx; ret ; 0x00008d9b: mov dword ptr [eax], edx; add esp, 0x18; pop ebx; ret ; ./Ropper.py --file /bin/ls --search "mov [%], edx" --quality 1 0x000084b8: mov dword ptr [eax], edx; ret ;; ret ;Use ropper in Scripts#!/usr/bin/env pythonfrom ropper import RopperService# not all options need to be givenoptions = {'color' : False, # if gadgets are printed, use colored output: default: False 'badbytes': '00', # bad bytes which should not be in addresses or ropchains; default: '' 'all' : False, # Show all gadgets, this means to not remove double gadgets; default: False 'inst_count' : 6, # Number of instructions in a gadget; default: 6 'type' : 'all', # rop, jop, sys, all; default: all 'detailed' : False} # if gadgets are printed, use detailed output; default: Falsers = RopperService(options)##### change options ######rs.options.color = Truers.options.badbytes = '00'rs.options.badbytes = ''rs.options.all = True##### open binaries ####### it is possible to open multiple filesrs.addFile('test-binaries/ls-x86')rs.addFile('ls', bytes=open('test-binaries/ls-x86','rb').read()) # other possiblityrs.addFile('ls_raw', bytes=open('test-binaries/ls-x86','rb').read(), raw=True, arch='x86')##### close binaries ######rs.removeFile('ls')rs.removeFile('ls_raw')#

./Ropper.py --file /bin/ls --set nx ./Ropper.py --file /bin/ls --unset nx ./Ropper.py --file /bin/ls --inst-count 5 ./Ropper.py --file /bin/ls --search "sub eax" --badbytes 000a0d ./Ropper.py --file /bin/ls --search "sub eax" --detail ./Ropper.py --file /bin/ls --filter "sub eax" ./Ropper.py --file /bin/ls --inst-count 5 --filter "sub eax" ./Ropper.py --file /bin/ls --opcode ffe4 ./Ropper.py --file /bin/ls --opcode ffe? ./Ropper.py --file /bin/ls --opcode ??e4 ./Ropper.py --file /bin/ls --detailed ./Ropper.py --file /bin/ls --ppr --nocolor ./Ropper.py --file /bin/ls --jmp esp,eax ./Ropper.py --file /bin/ls --type jop ./Ropper.py --file /bin/ls --chain execve ./Ropper.py --file /bin/ls --chain "execve cmd=/bin/sh" --badbytes 000a0d ./Ropper.py --file /bin/ls --chain "mprotect address=0xbfdff000 size=0x21000" ./Ropper.py --file /bin/ls /lib/libc.so.6 --console [Assemble/Disassemble] ./Ropper.py --asm "jmp esp" ./Ropper.py --asm "mov eax, ecx; ret" ./Ropper.py --disasm ffe4 [Search] ./Ropper.py --file /bin/ls --search ? any character % any string Example: ./Ropper.py --file /bin/ls --search "mov e?x" 0x000067f1: mov edx, dword ptr [ebp + 0x14]; mov dword ptr [esp], edx; call eax 0x00006d03: mov eax, esi; pop ebx; pop esi; pop edi; pop ebp; ret ; 0x00006d6f: mov ebx, esi; mov esi, dword ptr [esp + 0x18]; add esp, 0x1c; ret ; 0x000076f8: mov eax, dword ptr [eax]; mov byte ptr [eax + edx], 0; add esp, 0x18; pop ebx; ret ; ./Ropper.py --file /bin/ls --search "mov [%], edx" 0x000067ed: mov dword ptr [esp + 4], edx; mov edx, dword ptr [ebp + 0x14]; mov dword ptr [esp], edx; call eax; 0x00006f4e: mov dword ptr [ecx + 0x14], edx; add esp, 0x2c; pop ebx; pop esi; pop edi; pop ebp; ret ;