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Leaderboard

  1. lovejoy226

    lovejoy226

    Full Member+
    140
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    1,433
    Posts
  2. CodeExplorer

    CodeExplorer

    Team Member
    74
    Points
    4,496
    Posts
  3. whoknows

    whoknows

    Full Member+
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  4. zaas

    zaas

    Junior+
    8
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Popular Content

Showing content with the highest reputation since 12/05/2025 in Posts

  1. CodeExplorer
    Here is unpacked folder, all tools included. https://limewire.com/d/PWsfv#C32mVemS40 https://fileroy.com/2WVGr1E9zkx7/file https://zippyshare.day/YPGm89uDHMSpeoC/file Final unpacked exe is called drr_msil_Slayed2cleaned_.exe
  2. CodeExplorer
    Here we go, after the above step with slayer - Decrypt Methods unckecked; // Token: 0x0600081D RID: 2077 RVA: 0x0006E2E8 File Offset: 0x0006C4E8 [MethodImpl(MethodImplOptions.NoInlining)] internal unsafe static void qp1d5IbOJ() { Just fill at 006C4E8 with 062A so will change the body of method qp1d5IbOJ to a simple ret. after that we have a working file and we can deobfuscate with BabelDeobfuscator. Here is working unpacked file: https://workupload.com/file/3JqMck9ZtYR
  3. Washi
    3 points
    Better late than never, my writeups are finally live: https://washi1337.github.io/ctf-writeups/writeups/flare-on/2025/
  4. CodeExplorer
    NETReactorSlayer-6.4.0.0_Fixed9.rar: https://workupload.com/file/9FgKGVGdEEY I completely restored NETReactorSlayer-6.4.0.0\NETReactorSlayer.Core\Helper\EncryptedResource.cs and just add trial Decrypter_v5. I've added ControlFlowReactor.cs for the new control flow and I've changed MethodDecrypter.cs to call it from "public void Run(IContext context)" in each Module.cctor method called.
  5. CodeExplorer
    https://limewire.com/d/ms51G#Mpzupr348q https://fileroy.com/M2BGwO2XGj40/file https://zippyshare.day/EbxBhxDZZZbrlIH/file
  6. iced
    3 points
    Very nice crackme Salin! Noticed couple of things and gave it a try,its using a recrusive function that looked like Fbonacci but with a twist - when n equals 8 it returns the first character of my input XORed with 0x78 instead of the normal Fibonacci value. Code computes fib(14) and compares it against specific values in a switch statement. I knew standard fib(14) is 377 which equals 0x179. Working backwards since fib(8) gets replaced with char[0] ^ 0x78 , i needed to figure out what value makes the sequance land on 377. Turns out fib(8) needs to be 21 for this to work. So char[0] ^ 0x78 = 21 which means char[0] = 21 ^ 0x78 = 0x6D = 'm' There's a loop that validates characters 3 through 9 using a table at byte_411BFC. The validation formula : fib(i+8) - fib(i+6) == byte_411BFC[i] ^ char[3+i] Just rearranged it to solve for each character and u get : a, m, b, i, q, u, e. Now characters 1 and 2 were trickier. Character 1 determines a value dl through another Fibonacci call and character 2 gets XORed with that. There's a secondary check involving fib(17) that needs to equal 1597. After some trial and error found that char[1] = 'o' gives the right Fibonacci value, and char[2] = 'z' satisfies the XOR constraint. And if we finally put it all together we get a valid serial for this amazing crackme which is : mozambique I ran it through checksum calculation and got 0x12D4. Some code where it compares : 0040134B | 893D 20434100 | mov dword ptr ds:[414320],edi | 00401351 | 81FF D4120000 | cmp edi,12D4 |
  7. CodeExplorer
    I've just fixed NETReactorSlayer to work with this protection: NETReactorSlayer-6.4.0.0_Fixed1: https://workupload.com/file/EU2AEkDCjSz Please test it and let me know;
  8. iced
    Basically it works like this,your input gets hased and compared to stored hashed thats inside crackme. Stored hash is : 97328946466865e882e741277903962e7f1ca9cbb4e71948d740bbd38f702f3c <- crackmes hash. To patch application put bp on MessageBoxW and check the call stack. The address in my case is the second one on the call stack: 097044E3 - 8B CE - mov ecx,esi From this address scroll up and you will see : 097044A7 - 74 10 - je 097044B9 097044A9 - C6 05 744ED005 01 - mov byte ptr [05D04E74],01 { (0),1 } 097044B0 - 8B CE - mov ecx,esi 097044B2 - E8 CDE96500 - call 09D62E84 097044B7 - EB 2A - jmp 097044E3 097044B9 - C6 05 744ED005 00 - mov byte ptr [05D04E74],00 { (0),0 } Patch the first one 097044A7 - 74 10 - je 097044B9 to jne 097044B9 and that should be it.
  9. Salin
    2 points
    Language : C/C++ Platform : Windows x32 OS Version : ( Windows 7,10) Packer / Protector : None Description : Goal : Find correct key. Enter key in textbox and click OK button then you see result . Screenshot : crackme_release.exe
  10. vinod123
    @0X7C9 pls can u upload https://tut4u.com/hexorcist-reverse-engineering-course/ in your webdav server
  11. CodeExplorer
    Unpackers tools - source code C# My source code: https://gitlab.com/CodeCracker https://github.com/CodeCrackerSND https://bitbucket.org/CodeCrackerSND/ I will NOT share (anymore) the rest of my tools!
  12. noxv
  13. TeRcO
    1 point
    import hashlib def generate_key(input_string): input_string = input_string.upper() salted_string = input_string + ':K3yS@lt2025' md5_hash = hashlib.md5(salted_string.encode()).hexdigest().upper() md5_hash = md5_hash[:16] formatted_hash = '-'.join([md5_hash[i:i+4] for i in range(0, len(md5_hash), 4)]) return formatted_hash input_string = input("Enter your string: ") key = generate_key(input_string) print("Generated serial:", key)
  14. lengyue
    VMPLicenseProtector This is a recently developed recreational utility. I'm unsure which forum section is appropriate, so moderators please feel free to move it if necessary. The tool implements a combined The Enigma and VMProtect protection scheme and is designed for applying VMProtect to Win32/Win64 executables and DLLs without requiring source code. It is not compatible with .NET assemblies. The interface supports Chinese/English language switching. To function, VMProtect_Con.exe must be placed in the tool's directory. Note that the tool itself is incompatible with Windows 7 and requires the DirectX 11 runtime to be installed. Software protected with it remains compatible with Windows XP/7/10. Trial Version Limitations: Only the anti-hijacking feature is enabled. All other functions are disabled. Uses a fixed RSA key. Please do not use it to protect commercial software. While some features are disabled, the tool may be sufficient for users with modest needs if patched. The trial license expires after one month, but functionality can be extended through patching. Archive Password: View by double-clicking the RAR file in WinRAR (check comment) or use: tuts4you. File Information Submitter lengyue Submitted 12/26/2025 Category CrackMe View File
  15. 0xFFFFDAY
    you really want then open a new challenge of unpack me. Will try to do it. Like a proper way.
  16. 0xFFFFDAY
    Ok will prove it what will i get?
  17. Asif
    its not trial , its dng hvm enterprise 4.94 [ it can be run for 3 days ] , unpack it here x86 and x64 bit , Unpackme_64bit_3_days_time.zip UnpackMe_3_Days.zip
  18. Asif
    i am not asking about how did u dump jit code , saying about , can u little bit brief about => how did you Load assembly and RunModuleConstructor or load assembly from different Domain, this part => var asm = Assembly.LoadFrom(Filename); RuntimeHelpers.RunModuleConstructor(asm .ManifestModule.ModuleHandle);
  19. decode
    @CodeExplorer Hello master, I followed your instructions for the new version of this application, but the code doesn't fully open and the executable still doesn't work. Could you please review it again? Your knowledge regarding this version of Reactor is very valuable to me. https://gofile.io/d/c1jG6d
  20. 0xFFFFDAY
    It was interesting 😅 UnpackMe.Dumped.exe UnpackMe.Unpacked.exe
  21. Nooboy
    <font dir="auto" style="vertical-align: inherit;"><font dir="auto" style="vertical-align: inherit;">SEKeygen.rar</font></font>HWID hash: 83A5249484F096DB700F771CF0A5F51B Decoded value 8A357B71C2ECFA5F7FC3275B5DBF9F61D4F98CA089470FCF390DFC0BC125917C92D667ACA678A0D485F7566FBBA52233 Reg SOFTWARE\Classes\Interface\{19335D77-1E2D-1337-146B-19F5CABF57A8} KeySize: 1024 E: 65537 CPU MAC BIOS HDD HWID
  22. lovejoy226
    The Enigma Protector x64 v7.4 (HWID Lock) Two simple Win x64 GUI applications protected using Enigma x64 v7.4. Challenge is to; bypass the hardware ID lock; unpack the application. Let us go together to solve this issue. File Information Submitter lovejoy226 Submitted 06/17/2024 Category UnPackMe View File
  23. Priboi
    My previous video link is dead. Here below you can watch how to use my plugin.
  24. Tundxator
    DNGuard HVM IS the strongest so far. PVLOG dotNet Protector although it's a bit old is another beast, at least for me.
  25. 0xFFFFDAY
    Sir i created those tools. And took some references from JitUnpacker https://github.com/wwh1004/JitUnpacker-Framework
  26. 0xFFFFDAY
    😀😁 UnpackMe.Dumped.exe UnpackMe.Unpacked.exe
  27. cachito
    Found this last week when I was looking for gen9 bios/firmwares http://dl.mobinhost.com/Firmware/HP/iLO/ @kao Yes, gen10 is iLO5. It might be the same check on both generations, so maybe checking old iLO4 would also work... @Niutish Can the memory be programmed by soft or it can only be done via hw? Does CH341A works for this? PS: I have never reversed fw/bios, but I guess it can be backtraced from here? LDR R3, [R10,#0x10] MOV R2, R5 ADD R0, SP, #0x194+var_64 MOV R1, #0x40 ; '@' BL 0x3EEFFE0 LDR R2, [SP,#0x194+var_178] ADR R1, aMemoryModuleIs ; "Memory module is HP SmartMemory"EDIT: According to this pdf https://www.cpi.co.jp/wp/wp-content/uploads/2025/01/Understanding-DDR4-SPD-Table-by-CST.pdf bytes 0x143-0x144 are the manufacturing date. CRC should be at 0x17E-0x17F
  28. kao
    To avoid blind guessing, I suggest you to get old iLO firmware packages and analyze them. See what conditions must be fulfilled in order to get the "SmartMemory" status. If my google-fu is working, Gen10 servers use iLO5, here is it's general spec: https://www.hpe.com/us/en/collaterals/collateral.c04154343.html, and here are the download links https://support.hpe.com/connect/s/softwaredetails?language=en_US&collectionId=MTX-2dc80c4ae4b943fa. It would appear that older firmware packages didn't use any encryption, just some (trivial) compression, making the job so much easier.
  29. HostageOfCode
    Here compiled unlicense with codeexplorer's fixes: unlicense compiled With pyton 3.09 and 3.11 versions.
  30. xlatb
    I wanted to devirtualize it manually so I made a disassembler for it using the new yara-x to locate the handlers and the bytecode. Probably going to turn it into a full devirtualizer from binaryshield bytecode straight to x86_64. I saw these values(the one in the cmp comment) put them as input since it was valid I didn't go further. You can find my work at https://github.com/xlatbx59/Bshld, the file with the disassembly is at https://github.com/xlatbx59/Bshld/blob/master/binshield.txt. It was fun to reverse
  31. Dax
    Hi! This is my first post on tuts4 you I hope that this is the right section, if not, please delete this post! Ok so... Few months ago I have made public my internal project called REDasm on GitHub. Basically it's a cross platform disassembler with an interactive listing (but it's still far, if compared to IDA's one) and it can be extended with its API in order to support new formats, assemblers and analyzers. Currently it supports: Portable Executable VB5/6 decompilation . It can detect Delphi executables, a decompiler is WIP. .NET support is WIP. Debug symbols are displayed, if available. ELF Executables Debug symbols are displayd, if available. DEX Executables Debug symbols are displayed, if available. x86 and x86_64 is supported. MIPS is supported and partially emulated. ARM support is implemented but still WIP. Dalvik assembler is supported. Most common assemblers are implemented by using Capstone library, Dalvik assembler is written manually and even the upcoming MSIL/CIL assembler will be implemented manually. The entire project is written in C++ and its UI is implemented with Qt5, internally, the disassembler is separated in two parts: LibREDasm and UI. LibREDasm doesn't contains any UI related dependencies, it's just pure C++, one day I will split it in two separate projects. Some links with source code, nightlies and wiki: Source Code: https://github.com/REDasmOrg/REDasm Nightly Builds (for Windows and Linux): https://github.com/REDasmOrg/REDasm-Builds Wiki: https://github.com/REDasmOrg/REDasm/wiki And some screenshots:
  32. mindre44
    Someone please share zero 2 automated reversing course. Thank you.
  33. hacktooth
    I commented out that portion of code because transparency works correctly, but if you look closely, it generates artifacts, especially when selecting text. However, I solved the problem just last night by looking at some templates on the forum in asm x86 and making the appropriate changes. Below, I show all the updated code. In attachment you will find image resource and the exe file. #include <windows.h> #include <wingdi.h> #include "ufmod.h" #include "resource.h" #include "song.h" #pragma comment(lib, "Msimg32.lib") #pragma comment(lib, "ufmod.lib") #pragma comment(lib, "winmm.lib") HINSTANCE hInst; HBITMAP hBackground = NULL; HBRUSH hBrushBackground = NULL; HBRUSH hBrush; COLORREF transparentColor = RGB(255, 0, 255); // Magenta color key // Bitmap per il pulsante di chiusura HBITMAP hBtnCloseNormal = NULL; HBITMAP hBtnCloseHover = NULL; // Procedura finestra del dialogo INT_PTR CALLBACK DialogProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_INITDIALOG: { HICON hIcon = LoadIcon(hInst, MAKEINTRESOURCE(IDI_ICON1)); SendMessage(hwndDlg, WM_SETICON, ICON_BIG, (LPARAM)hIcon); SetWindowText(hwndDlg, L"Keygen Template by jNe"); // Imposta il testo predefinito SetDlgItemText(hwndDlg, EDIT_username, L"Enter Username"); // play chip-tune <3 uFMOD_SetVolume(20); uFMOD_PlaySong(songData, (void*)sizeof(songData), XM_MEMORY); // BMP in background hBackground = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(BMP_form)); hBrush = CreatePatternBrush(hBackground); // set magenta color key SetLayeredWindowAttributes(hwndDlg, transparentColor, 0, LWA_COLORKEY); // --- FINE --- // BMP close hBtnCloseNormal = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(BMP_close)); hBtnCloseHover = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(BMP_close_hover)); if (hBtnCloseNormal) { HWND hBtnClose = GetDlgItem(hwndDlg, BTN_CLOSE); if (hBtnClose) { BITMAP bm; GetObject(hBtnCloseNormal, sizeof(bm), &bm); SetWindowPos(hBtnClose, NULL, 0, 0, bm.bmWidth, bm.bmHeight, SWP_NOMOVE | SWP_NOZORDER); } } } return TRUE; case WM_ERASEBKGND: return TRUE; case WM_PAINT: { PAINTSTRUCT ps; HDC hdc = BeginPaint(hwndDlg, &ps); if (hBackground) { HDC hdcMem = CreateCompatibleDC(hdc); HBITMAP hOldBmp = (HBITMAP)SelectObject(hdcMem, hBackground); BITMAP bm; GetObject(hBackground, sizeof(bm), &bm); BitBlt(hdc, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY); SelectObject(hdcMem, hOldBmp); DeleteDC(hdcMem); } EndPaint(hwndDlg, &ps); } return TRUE; case WM_DRAWITEM: { LPDRAWITEMSTRUCT lpdis = (LPDRAWITEMSTRUCT)lParam; if (lpdis->CtlID == BTN_CLOSE) { HDC hdcMem = CreateCompatibleDC(lpdis->hDC); HBITMAP hBmpToUse; if (lpdis->itemState & ODS_SELECTED) { hBmpToUse = hBtnCloseHover; // HOVER } else { hBmpToUse = hBtnCloseNormal; // NORMAL } if (hBmpToUse) { HBITMAP hOldBmp = (HBITMAP)SelectObject(hdcMem, hBmpToUse); BitBlt(lpdis->hDC, lpdis->rcItem.left, lpdis->rcItem.top, lpdis->rcItem.right - lpdis->rcItem.left, lpdis->rcItem.bottom - lpdis->rcItem.top, hdcMem, 0, 0, SRCCOPY); SelectObject(hdcMem, hOldBmp); } DeleteDC(hdcMem); } } return TRUE; case WM_CTLCOLORDLG: return (INT_PTR)hBrush; case WM_CTLCOLOREDIT: case WM_CTLCOLORSTATIC: { HDC hdcEdit = (HDC)wParam; int controlId = GetDlgCtrlID((HWND)lParam); if (controlId == ABOUT) { SetBkMode(hdcEdit, TRANSPARENT); SetTextColor(hdcEdit, RGB(255, 255, 255)); SetBkColor(hdcEdit, 0x00000000); SetBrushOrgEx(hdcEdit, -23, -88, NULL); return (INT_PTR)hBrush; } if (controlId == EDIT_username) { SetBkMode(hdcEdit, TRANSPARENT); SetTextColor(hdcEdit, RGB(255, 255, 255)); SetBkColor(hdcEdit, 0x00000000); SetBrushOrgEx(hdcEdit, -23, -88, NULL); return (INT_PTR)hBrush; } if (controlId == EDIT_serial) { SetBkMode(hdcEdit, TRANSPARENT); SetTextColor(hdcEdit, RGB(255, 255, 255)); SetBkColor(hdcEdit, 0x00000000); SetBrushOrgEx(hdcEdit, -23, -151, NULL); return (INT_PTR)hBrush; } break; } case WM_LBUTTONDOWN: SendMessage(hwndDlg, WM_NCLBUTTONDOWN, HTCAPTION, 0); return TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case EDIT_username: { if (HIWORD(wParam) == EN_CHANGE) { char username[256]; GetDlgItemTextA(hwndDlg, EDIT_username, username, 256); SetDlgItemTextA(hwndDlg, EDIT_serial, "OMFG-THIS-IS-A-DEMO"); } break; } case BTN_CLOSE: SendMessage(hwndDlg, WM_CLOSE, 0, 0); return TRUE; } break; case WM_CLOSE: uFMOD_StopSong(); if (hBrush) DeleteObject(hBrush); if (hBackground) DeleteObject(hBackground); if (hBtnCloseNormal) DeleteObject(hBtnCloseNormal); if (hBtnCloseHover) DeleteObject(hBtnCloseHover); EndDialog(hwndDlg, 0); return FALSE; } return FALSE; } // Entry point int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { hInst = hInstance; DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, DialogProc); return 0; } keygen template - fix.zip
  34. boot
    Hi @LCF-AT , DriverMonitor is an old tool that has been released for over 20 years. I am accustomed to using this app to load some Windows drivers. For learning and testing purposes, I used some leaked certificates to sign this driver. Now I will upload the signed driver here. I have set up a callback function (ProcessNotifyExRoutine_call_back) in the driver to filter specific process names in order to prevent their loading. Therefore, before uninstalling the driver, the target process cannot be started. This simple APP can kill some driver-protected antivirus software or system-level processes. For example, antivirus software such as Kaspersky and Symantec. If you terminate the system processes (e.g. winlogon.exe and dwm.exe), it will result in a BSOD. bin_v0.002.zip(Requires: 64-bit OS & >= Windows 7) DriverMonitor_EN.rar Video_2025-09-14_161309.mp4 (4.69 MB)
  35. lovejoy226
    @Teddy Rogers It is seen to be wider and smoother. Many thanks. Regards. sean.
  36. CreateAndInject
    Why? I don't depend on anyone.
  37. lovejoy226
    @everyone Can you please write step by step guide tutorials if you solve these kind of problems, so other people get helped by your efforts. No meaning jobs, just showing off. But this is not obligation. your choice for helping others learn. Regards. sean.
  38. lovejoy226
    @guily6669 Have you installed the keyboard driver of your windows's? Regards. sean.
  39. Priboi
  40. lovejoy226
  41. lovejoy226
  42. lovejoy226
    @boot Does your method work also to this? Your picture above is different from mine even though the RVA is same as yours. hashgen.vmp.hwid.lock.zip Regards. sean.
  43. lovejoy226
    @boot Fantastic!!! How did you do it? Can you reveal your method? Regards. sean.
  44. lovejoy226
    Hello, everyone. Try to do this bypass and runme challenge. If you do it successfully, post the screenshot please. VMProtect MY PC HWID LOCKED hashgen.vmp.zip Regards. sean.
  45. m0rphine
    hi, i am new to devirtualization topic and this challenge was very good for beginners and me. first, my goal was not just obtain the keys but devirtualize whole function automatically and recompile back to be able to patch it. i lifted handlers to LLVM IR and recompiled in a new binary to analyze it this is my final output i know its a little difficult to read, but at least you can see the correct keys clearly if you look at if statements. sadly, code crashes at runtime, i dont know why. it will probably take really long time to identify the problem. i dont think i will do that. maybe i might try VTIL instead of LLVM. i would like to see others approaches on fully devirtualizing this vm. great challange again.
  46. TeRcO
    https://www.youtube.com/watch?v=4G9jc5zD6K0
  47. Holy
    Let's forget about the packing, is not saying anything nowadays the important protection is the virtualization. And well having devirtualized both of the top protectors themida and vmprotect for me personally it took longer to devirtualize vmp than themida (basic vms). Themida is harder to get the semantics for each handler which in vmp is easy peasy. But on the other side to "restore" the original code I found it much harder with vmp than with themida as the code is transformed to a stack based virtual machine. In Themida (at least the basic ones which I analyzed) the conversion from handler to original code is almost 1:1. In VMP you will have to make your own "compiler" / optimization passes to get something close to the original code. Ofc not always the goal is to restore the original code, but to understand it little bit and change some inner jcc inside for example in that case vmp debugging is simpler than a black oreans vm. If you care about security and not so much about performance I would go more with a double-layered vm from Oreans and with the black variant (EAGLE, SHARK and PUMA). The complexity of those virtual machines plus the obfuscation of black overcomes the complexity of VMProtect single vm. Also there are lots of public documention for vmp meanwhile for new themida vms not so much. Ofc you can always go with a not so well know protector like Obsidium / Enigma. All of the above is supposing you want to protect some native code, if you want to protect some .NET program then forget all of the above and go for some modded Confuser / NETReactor or something similar. Just my 2cents.
  48. Priboi
    From context menu choose CreateBackup then "Make Snapshot" and run program then to see differences choose "Compare Snapshot". Before make new snaphot choose "Clear Snapshot" for cleaning changes that plugin made. For bigger targets and with many changes can be plugin laggy. CreateBackup.dp64
  49. LCF-AT
    Press the reset button on your PC. XOR EDX,EDX SYSENTER 4 Bytes only and bye bye. greetz
  50. Teddy Rogers
    Double checked your icon and it looks to be head banging... Ted.

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