Latest Solutions 
| Crackme | Author | Summary | Date | Action |
|---|---|---|---|---|
| Password And Flag in C | xttrnela | Found the password using GDB debugger | 2026-09-21 16:58 | View |
| Tricky challenge or is it ? | sh0k0n1c | Decrypt XOR string seen in the entry point of program | 2026-09-21 13:07 | View |
| My First crackme | Shiro5550 | check strings | 2026-09-20 13:41 | View |
| Pass CrackMe | bestaireverser | Collapsed the VM layer to its final byte predicate. | 2026-09-20 10:01 | View |
| Tricky challenge or is it ? | fon37 | Just a simple static reverse | 2026-09-20 06:07 | View |
| Find the password Windows ver | fon37 | understanding the assembly code | 2026-09-19 02:24 | View |
| Tricky challenge or is it ? | acheylate | The secret string is: supersecret123 | 2026-09-18 07:35 | View |
| Product Activation | ok | activate interprets libcerberus.so as bytecode for a custom vm with an mmu. traced it via ptrace, reversed the opcode set and the seeded rolling hash check, key fell out of the recurrence | 2026-09-18 00:21 | View |
| sygil (gui version for linux) | ok | Keygen for any alias: FNV-1a-32 hash, fold (h>>16)^(h&0xFFFF), format syg-%08x-%04x-%08x. TracerPid anti-debug XORs 0xDEADBEEF when traced. Verified in GUI. | 2026-09-17 23:19 | View |
| Find the password | kaya | Password HVUHADN — recovered by cross-referencing the result strings and disassembling the check at 0x100fd: the password is stored as two overlapping 4-byte XOR constants (0x48555648 'HVUH' + 0x4e444 | 2026-09-17 22:19 | View |
| easy_reverse | zeroflag | Static analysis and GDB/GEF solution exploring argc/argv, pointers and character-based validation. Step-by-step walkthrough included. | 2026-09-17 19:14 | View |
| Auth Pin | tor1 | ConfuserEx-obfuscated PIN check where the secret was hiding in plain sight — PIN as a raw int, strings only Base64-encoded. | 2026-09-17 18:40 | View |
| user-pass. | tor1 | Manual unpacking of an Agile.NET packer with anti-debug, then AES key/IV extraction to decrypt the credentials — all statically, without letting the app run under a debugger. | 2026-09-17 18:36 | View |
| a bit of a challenge | Kontar | https://kontar0.github.io/writeups/crackme-04.html | 2026-09-17 14:07 | View |
| KeygenMe | xttrnela | Made a keygen which calculates correct serial | 2026-09-17 11:15 | View |
| Monsignors Crackme | xttrnela | Found the password using Ghidra decompiler. | 2026-09-17 10:34 | View |
| a bit of a challenge | nomnomheapnom | Name is hashed with 32-bit FNV-1a plus two rotating accumulators, then fmix32-avalanched; "%08x%08x%08x" gives the 24-char sigil. ptrace(TRACEME) anti-debug only; trivial forward keygen. | 2026-09-17 05:45 | View |
| good kitty | SOURAV | 2026-09-17 05:17 | View | |
| vvsc by elijunior01 | SOURAV | - Takes numeric password as input - Checks if the password is correct or not - If password is correct then print **Allowed access** else **Access denied** | 2026-09-17 05:15 | View |
| Simple crackme | SOURAV | I gave a random input at first and **ltrace** command was able to trace the library function calls made and we can see it loaded the user input as **args1** and the original key as **args2**. Of cours | 2026-09-17 05:12 | View |
| PrettyDamnEasy | SOURAV | - Takes user input string (**found %s by examining 0x201a**). - Checks if the string is correct or wrong. - If string is correct then it prints **Correct password** else **Wrong password, try another* | 2026-09-17 05:10 | View |
| Plain sight | SOURAV | checkout the rdx donohard code value | 2026-09-17 05:08 | View |
| PieIsMyFav | SOURAV | - The binary takes an integer input which can be inferred because `x/s 0x204b` gives us `%d` - If we give wrong integer then we get **Try harder...** - If we give the right integer then we get **Essa | 2026-09-17 05:05 | View |
| eyecandylocked by nexy | SOURAV | checkIt() function disassembly check | 2026-09-17 05:03 | View |
| easyAF | SOURAV | The password of was present in the $rsp register and got loaded in | 2026-09-17 04:58 | View |
| crackme1 by adamziaja | SOURAV | The program takes username as input which has to be between 8 and 12 characters otherwise the message username must be between 8 and 12! is printed | 2026-09-17 04:50 | View |
| Beginner Friendly | SOURAV | extract readable strings or text from binary | 2026-09-17 04:47 | View |
| Back To The beginning Keygen | xttrnela | Made a keygen satisfies the password conditions | 2026-09-16 20:56 | View |
| a bit of a challenge | Mazsola | FNV + Murmur3 keygen | 2026-09-16 20:16 | View |
| Plain sight | zeroflag | Static analysis and GDB/GEF solution using standard Linux tools. Step-by-step walkthrough included. | 2026-09-16 19:15 | View |
| crackme_l6_hard | jobany | pretty fun to do :) | 2026-09-16 18:22 | View |
| muhemed crackme | xttrnela | Found the password using Ghidra tool | 2026-09-16 18:16 | View |
| sygil.fun | vetementsvmnts | Python keygen based on FNV-1a hash of the name. | 2026-09-16 17:28 | View |
| My First crackme | xttrnela | Found a line of code where the input string and password are compared | 2026-09-16 15:40 | View |
| arbchal (b-v0.1) | jobany | ggs | 2026-09-16 12:59 | View |
| /\ Hydra \/ (MCM 7) /\ | nke | comprehensive writeup | 2026-09-15 22:36 | View |
| /\ Hydra \/ (MCM 7) /\ | beto2dev | Finally solved | 2026-09-15 21:46 | View |
| Level 3 | Orilo | 2026-09-15 20:38 | View | |
| Level 2 | Orilo | 2026-09-15 20:17 | View | |
| Level 1 | Orilo | 2026-09-15 19:52 | View | |
| U Can't Pass | vetementsvmnts | Patched the hardcoded comparison value to bypass the impossible check. | 2026-09-15 17:32 | View |
| ZSecure | tor1 | Solved via dynamic analysis in dnSpy — all stage secrets read from runtime. | 2026-09-15 15:02 | View |
| muhemed crackme | vetementsvmnts | wvohXN8X7C14jrq1F*!j | 2026-09-15 07:58 | View |
| crackme_l6_hard | Aaaaatony | Keygen for the custom-VM protection: recovered a valid name/serial by reversing the bytecode VM and inverting the name hash. No patching. | 2026-09-14 22:25 | View |
| CrackmesForBeginners (CFB) #1 | Apyx | 2026-09-14 19:01 | View | |
| really easy | vetementsvmnts | 2026-09-14 18:09 | View | |
| Get the passcode | zeroflag | Terminal-only solution using standard Linux tools. Step-by-step walkthrough included. | 2026-09-14 11:05 | View |
| Double Door | Orilo | 2026-09-13 12:01 | View | |
| password esasy | ebaldremal228 | A beginner-friendly crackme where the password is hardcoded and stored in plain text in the .rdata section. The correct password is `1234` | 2026-09-13 11:10 | View |
| ZSecure | JIHN | Boot Key Reversing | 2026-09-13 04:40 | View |
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