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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

A topic will then automagically be created and posted in these forums...

  1. SUB Z3R0
    CrackMe · Started by SUB Z3R0,

    Catch My Anti.Debug/Anti.Attach Trick !!! anyone knows how we can bypass without patching main file memory ? Anti_Dump.zip

    • 7 replies
    • 6.2k views
  2. anhduccec
    CrackMe · Started by anhduccec,

    ??? MbCrackMe.zip

    • 2 replies
    • 4.3k views
  3. zuma555
    KeygenMe · Started by zuma555,

    This is my 2Nd challange written by me, make shure you find out why is this level 5. Rules are: -NO patching -NO bruteforcing -Making a keygen/Serial Fish are allowed solutions. -GOLD MEDAL {Keygenned}: DrPepUr - Keygen accepted -SILVER MEDAL {Serial Fished}: None ZUMASGENME2.zip

    • 13 replies
    • 6.4k views
  4. SUB Z3R0
    UnPackMe (.NET) · Started by SUB Z3R0,

    Hi there ! try this : CrackMe.zip

    • 10 replies
    • 8k views
  5. trainkilla
    UnPackMe · Started by trainkilla,

    We are testing our GBA emulator and added a protection to it. Can you bypass it? We need to know this, because we want to make it harder to crack/bypass. NOTE: There are no rules, bypass the messagebox as you want, loader, patcher, whatever! But, make sure you tell us how you did it! File is located here (in the rar archive): LINK! Goal: Get past the first window message... Good Luck! NOTE: Can you also post how you did it, as a summary. Thanks, I will appreciate it very MUCH!

    • 18 replies
    • 7.7k views
  6. met
    UnPackMe · Started by met,

    Unpack Me this is atough Target of Armadillo http://rapidshare.com/files/114270955/UnpackMe.rar.htmlUnpackMe.rar

    • 8 replies
    • 5.9k views
  7. IMPosTOR
    CrackMe · Started by IMPosTOR,

    Just patch and send your tut to me This crack me have nag message, Unregistered ) you must patch it, then you see Registered Message ... NOTE : do not change Unregistered string to Registered string lol homepage : www.impostor.blogfa.com feedback : impostor_76171@yahoo.com Enjoy it IMPosTOR__s_Crack_me_0.5.zip

    • 21 replies
    • 9.6k views
  8. yohukm
    KeygenMe · Started by yohukm,

    please try it.. my friend sent it to me but i can't solve it Yt__o_KeygenMe2.zip

    • 9 replies
    • 7.2k views
  9. DrPepUr
    KeygenMe · Started by DrPepUr,

    I worked on a target with this algo when a little after I started reversing. It gave me a hard time fishing a serial so I just patched it and went about my way. I have this thing of going back to old targets and finding new solutions. Anyway recently keygenning has peaked my interests so I brought out PROGRAMX to see if I could keygen it. I couldnt belive how simple it was. It was right there smacking me in the face, anyway thought it would be a good exercise.. So I ripped the algo and modified a couple things and I leave you with this. No Anti, no other b/s just straight code. DrPepUr_6.rar Dustyh1981

    • 5 replies
    • 13k views
  10. zedasuruba
    KeygenMe · Started by zedasuruba,

    Hello everybody! This is my first attempt at a keygen. I've tried to protect it the best i know. keygenme.zip http://www.megaupload.com/?d=06NNMUMKTell me if it's any good or where i can make it better. Thanks.

    • 4 replies
    • 4.5k views
  11. GioTiN
    KeygenMe · Started by GioTiN,

    hi all people in this here i written a Serial Fishing for all cracking boards for testing Level : Hard Attached to this topic just find a valid serial , you not allow crack it if you found a valid serial , plz send it to my mail address : giotin_underseh@yahoo.com Regards , GioTiN Serial_Fishing__1_Under_SEH_Team.rar

    • 14 replies
    • 13.6k views
  12. Encrypto
    KeygenMe · Started by Encrypto,

    Hello again everyone. This time it might be my final keygenme depends on real life issues you can download it here : http://www.encrypto.co.nr/crackmes/Keygenme.9.dEPENDENCE.zip i have a few things to say: this keygenme involves math crypto . good for intermediate crackers and starters of course This keygenme is dedicated to SerialKiller a good mentor and a good friend. Mynes i have to say thanks again for skinning this junk HMX0101 for reporting bugs and testing. I hope you like this one . Enjoy.

    • 11 replies
    • 5.3k views
  13. lena151
    UnPackMe · Started by lena151,

    After lARP v2.0 Lite and lARP v2.0 Standard editions, here is an unpackme protected by lARP v2.0 Pro Ed. It is supposed to be challenging Have fun lena151. lARP_v2.0_Pro_UnpackMe.rar

    • 43 replies
    • 23.4k views
  14. Bad Bytes
    UnPackMe (.NET) · Started by Bad Bytes,

    hi, Info: Pack and Obfuscate with {SA} and use System.Reflection Namespace for protecting .NET Framework 2 is Need CrackME.zip

    • 5 replies
    • 7.3k views
  15. Mouradpr
    KeygenMe · Started by Mouradpr,

    this is a CrackME (5) for NewBies by Me ok try get "serial & name" CrackME_5.rar

    • 18 replies
    • 7.5k views
  16. DrPepUr
    KeygenMe · Started by DrPepUr,

    Here ya go, DrPepUr #5 I based this off a couple apps I worked on rolled them up into one and added a personal touch. Shouldnt be too hard. There are no rules all solutions ar valid as long as it runs registered and all options are unlocked. Patch, Keygen, Loader, Bruteforce just whatever you gotta do. Good Luck, Dustyh1981 DrPepUr5.rar

    • 7 replies
    • 9.6k views
  17. Teddy Rogers
    UnPackMe · Started by Teddy Rogers,

    PeSpin 1.32 Nice to see PeSpin being updated again... http://tuts4you.com/download.php?view.2183 Ted.

    • 4 replies
    • 5k views
  18. Teddy Rogers
    UnPackMe · Started by Teddy Rogers,

    http://www.tuts4you.com/download.php?view.2249 Ted.

    • 10 replies
    • 6k views
  19. littlesheep
    UnPackMe · Started by littlesheep,

    This is my first Unpack me. No rules, good luck. Tell me what you think. Good luck! I would like to thank Lena for her tutorial program. Toast__s_Unpackme.zip

    • 8 replies
    • 5.4k views
  20. Ufo-Pu55y
    KeygenMe · Started by Ufo-Pu55y,

    Hi, this one might be interesting, if you want to get familiar with hashes (like me). So it's intentionally WITHOUT any tricks, packers, mods or **** - coded dead straight. Fishing/Patching/Zonking out - 0 Points Keygenning - 1337 Points Good luck: KeygenMe__hASSh__1_.rar

    • 10 replies
    • 7k views
  21. Teddy Rogers
    UnPackMe · Started by Teddy Rogers,

    WinLicense 1.8.9.0 http://tuts4you.com/download.php?view.1988 Ted.

    • 15 replies
    • 7.5k views
  22. Guest MiStEr_X
    KeygenMe · Started by Guest MiStEr_X,

    Very easy fishme: http://downtown.vc/index.php?page=main&id=89092038&name=FishMe.v.1.exe.rar

    • 6 replies
    • 5.5k views
  23. LibX
    UnPackMe (.NET) · Started by LibX,

    This unpackme is protected with the latest version of Xheo CodeVeil I hope u enjoy reversing this nice protection Regards, LibX // RETeam UnpackMe.rar

    • 42 replies
    • 21.8k views
  24. juexing
    KeygenMe · Started by juexing,

    Hehe.....My Old KeyGenMe,It's my first KeyGenme, :cool: keygenmes1.rar :cool:

    • 31 replies
    • 16.3k views
  25. DrPepUr
    KeygenMe · Started by DrPepUr,

    I got bored and wrote this........should be pretty easy. Rules: 1. No Patching 2. No Self-Keygens (Refer to rule #1) 3. No Fishing - Valid Name & Serial Not Valid Solution 4. Write A Tutorial If You Feel Like It Valid Solution: Write A Working Keygen Code Snipits Are Not KeyGens...Nor Valid Solution Have Fun Dustyh1981 DrPepUr__3_KeyGenME.rar

    • 7 replies
    • 6.5k views

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