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Challenge of Reverse Engineering

Try a challenge or contribute your own, any platform or operating system...

The creation of new topics is disabled in these subforum categories.

Please create and post your new challenges in the appropriate subcategory of Downloads > Challenge of Reverse Engineering

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  1. 0xNOP
    KeygenMe · Started by 0xNOP,

    Easy KeygenMe as simple as it gets. Goals for this KeygenMe: #- First Place: Gold Medal (Develop a KeyGen.) #- Second Place: Silver Medal (Obtain a Working Serial.) #- Third Place: Bronze Medal (Patch the System to Good Boy Message.) NOTE: This Challenge is time recorded, meaning as soon as I end up writing this post, the Time Span for this challenge begins, if someone achieves one of the objectives, the Time Record will be the one when He/She meets one of the requirements above mentioned. (e.g. developed the leygen, posted a working serial or patched the system.) I know there is not much of a sense recording the time you took in achieving one of the go…

    • 2 replies
    • 6.2k views
  2. Jasi2169
    KeygenMe · Started by Jasi2169,

    Android KeygenMe 1 Requirements :- Android 2.3.3 And Up We Have Only 2 Medals Keygen + Tut In PM :- Gold Medal (Keygen Should Run Either In Computer ie. Windows Or Smartphone ie. Android) Serial :- Silver Medal // No Patching Allowed // Screenshot :- Download :- http://www80.zippyshare.com/v/mdBlSKGC/file.html

      • Like
    • 3 replies
    • 9.9k views
  3. XorRanger
    KeygenMe · Started by XorRanger,

    Hello all, Here is a new KeygenME from me. Prizes Make a fully working Keygen ==> Gold ==> First two persons gets the full KeygenME SourceCode. Gets a Working Serial ==> Silver Gets a Working Patch ==> Bronze. A tutorial would be appreciated. Enjoy!! Solutions Jasi2169 Bronze. kao Silver. kao Gold. Extreme Coders Gold. Adele.zip

      • Like
    • 17 replies
    • 13.1k views
  4. Reasen
    UnPackMe · Started by Reasen,

    Simple DevirtualizeMe Created in Oreans Code Virtualizer V2.1.5.0 With attach some files protected by different Modes from Virtual Machine PumaWhite32, all Delphi 7 Compressed and StealthMode have Virtualized strings, the other not. Good luck. StealthModePumaWhite.rar CompressedPumaWhite.rar PumaWhite.rar

    • 5 replies
    • 13.2k views
  5. man of the war
    CrackMe · Started by man of the war,

    Dear Friend's Simple CrackMe 1- Serial 2- MsgBox 3- Full Code If That Easy For Chalinger Good Luck Hell.rar

      • Like
    • 12 replies
    • 9.3k views
  6. mcr65
    UnPackMe · Started by mcr65,

    hi please unpacked and cracked this file without serial number and make tutorial thanks. Test1.rar pass: 1234

      • Like
    • 6 replies
    • 9.7k views
  7. 0xNOP

    Simple License System I did, hopefully gets you entertained for a while MyLicense.zip VT Scan: https://www.virustotal.com/en/file/b173f0281f9813bd75b384565ac274cdf1df3718d02b601a4fa3b14dc04288b0/analysis/1449717214/

      • Like
    • 15 replies
    • 8.6k views
  8. cawk
    CrackMe · Started by cawk,

    hello ive improved my crackme from last time want to see if its any harder than before post your unpacked file and please say if this was easy or not EDIT-Updated CrackMe.rar

      • Like
    • 4 replies
    • 7.3k views
  9. bomblader
    UnPackMe · Started by bomblader,

    I thought you'll like this little challenge I encoutered during a ctf. puzz.rar

      • Like
    • 3 replies
    • 6.9k views
  10. GautamGreat
    UnPackMe · Started by GautamGreat,

    This unpack me is packed by Double Layer First Layer is UPX Second Layer is ZProtect with HWID Try it. BEST OF LUCK UnpackMe.rar

  11. Narwhal
    UnPackMe (.NET) · Started by Narwhal,

    Screenshot This app was protected by ConfuserEX Modded (Easy). good luck CrackMe.rar

      • Like
    • 7 replies
    • 8.6k views
  12. cawk
    UnPackMe (.NET) · Started by cawk,

    Hello i found a modded confuserex on the internet and wanted to know if its anygood so ive made a quick crack me with it if you crack it let me know if its any better than the original confuser Updated the file CrackMe.rar

    • 5 replies
    • 9.2k views
  13. NightBaron
    UnPackMe (.NET) · Started by NightBaron,

    hi anyone i'm try to modded ConfuserEx i thinks it best for me , coz i can't unpack it hahaha [ i'm noobs ] just unpack me / good luck UnpackMeX.rar

      • Like
    • 4 replies
    • 9.2k views
  14. hiepkute1970
    UnPackMe (.NET) · Started by hiepkute1970,

    This app was protected by confuser 1.9.0 Mod Good Luck virustotal:https://www.virustotal.com/vi/file/a698dbd53aae744123932dff89674356c4b0b11b3572d1f74aa356b8d8b7c5c6/analysis/1446205416/ Unpack-Crack-.Net.rar

      • Like
    • 9 replies
    • 18.4k views
  15. GautamGreat
    UnPackMe · Started by GautamGreat,

    Simple DevirtualizeMe Created in VMProtect V2.13.5 Only one Procedure Virtualized DeVirtualized Procedure VA : 004520DC DevirtualizeMe.vmp.rar

    • 1 reply
    • 9.1k views
  16. Extreme Coders
    CrackMe · Started by Extreme Coders,

    This is a CTF style challenge. Virustotal scan findtheflag.rar

      • Like
    • 10 replies
    • 12.2k views
  17. NightBaron
    UnPackMe (.NET) · Started by NightBaron,

    i'm tested modded ConfuserEx Good Luck Virus Total : https://www.virustotal.com/en/file/6db9ed44b7b0ed6626e3ee0571bc65dc742dfbffed88c12a9a5a9ee6f3da8968/analysis/1436075146/ Login.rar

      • Like
    • 8 replies
    • 9.9k views
  18. NightBaron
    UnPackMe (.NET) · Started by NightBaron,

    Edit text in label Good Luck Edit Me.rar Virus Total https://www.virustotal.com/en/file/e0cab396ecf90499a435f624f2f26caed716071a86187c2ed85a50b21e195b10/analysis/1445690219/

      • Like
    • 3 replies
    • 7.8k views
  19. Jasi2169
    CrackMe · Started by Jasi2169,

    Android Crackme 2 Difficulty:- Easy Challenge:- Crack The App Download :- http://www90.zippyshare.com/v/5HaMObdH/file.html

    • 4 replies
    • 7.8k views
  20. Narwhal
    KeygenMe · Started by Narwhal,

    Screenshot Patch and find a Keygen Download Link : CrackMe7 - Difficulty 3.rar

      • Like
    • 6 replies
    • 8.4k views
  21. NCK
    UnPackMe (.NET) · Started by NCK,

    Hi guys. Nice to meet you. this app was protected by Shielden+DNGuard. Have a try,If you got it,Describe how to do it,thanks... sorry my poor english,sorry my chinglish ! ((o(^_ ^)o)) ((o(^_ ^)o)) ((o(^_ ^)o)) ((o(^_ ^)o)) UnPackMe.rar

      • Like
    • 30 replies
    • 30.7k views
  22. chickenbutt
    KeygenMe · Started by chickenbutt,

    Great for beginners keygenme.zip

    • 5 replies
    • 6.8k views
  23. 0xNOP

    Nothing fancy with this Deob/CrackMe just as simple as it gets, find the correct Activation Key for the generated Serial Number Hope you guys have fun with this one https://mega.nz/#!Ct4TVbZA!GyLfm7WZW-7WKpL2rIzhNtoDz0-4dnNEdjTv39yJEZM Maximum Security Sample - 0x90.zip

      • Like
    • 9 replies
    • 8.5k views
  24. vietnguyen09
    UnPackMe (.NET) · Started by vietnguyen09,

    Confuser custom + SmartAssemblie lastest Welcome challenge! Hope this file can make you feel interesting and please give me some feedback about how hard to unpack it. 1 = Too easy 2 = It's OK 3 = Hard (Need advanced skills) 4 = Really hard 5 = Unbeliveble Thanks for your time. UnpackMe1.zip

      • Like
    • 4 replies
    • 8.1k views
  25. bomblader
    KeygenMe · Started by bomblader,

    1. Crack it (so it accepts any password) 2. Find the password How difficult was it? (on a 1-10 scale) Protections used: you'll find out along the way. Have fun! hi.rar

      • Like
    • 6 replies
    • 11.6k views

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