来源：http://ap0x.headcoders.net/crackmes.html
   Welcome to my first Math-CrackMe !!!
   + Objective(s):
     1) Find the correct matrix
   + Rules:
     1) You must not patch matrix.exe (you can`t, but what the hell :)
      + Notes:
     There is only one solution !!!
   + F.A.Q.:
     Q: Will you publish the solution ???
     A: No, i don`t have time for cracking my own software :)

     Q: I can`t crack this crackme ???
     A: Well i would rate this crackme 4/10, so if you can`t complain to your mother :)

     Q: Crackme doesn`t work on my OS ???
     A: I have tested it on XP and it works fine ??? Upgrade your system :)

                    =------------------------------------------=
                    web:            http://ap0x.headcoders.net
                    mail:           ap0x.rce[at]gmail[dot]com
                    =------------------------------------------=
附件:matrix.rar

Welcome to my first Crypto-CrackMe !!!
   + Objectives:
     1) Crack NAG-RAR.exe to get .rar password for NAG-Crypto.exe unpacking
     2) Crack NAG-Crypto.exe program
     3) Create keygen for NAG-Crypto.exe program
   + Rules:
     1) You must not patch NAG-RAR.exe (you can`t, but what the hell :)
     2) In NAG-Crypto.exe program you must patch only the NAG screen
        - no loaders or any other memory patchers
        - you must not modify serial checking code
     3) KeyGen must work on patched and unpatched NAG-Crypto.exe
      + Notes:
     Because I played with PE-headers (yet again :) anti-virus software may
     detect a virus present in NAG-Crypto.exe program. There is no virus, so
     your AV must broken :) Ignore virus message and if nessesary unload your
     AV !!! But it will take you some time to get .rar password ;)
   + F.A.Q.:
     Q: Will you publish the solution ???
     A: No, i don`t have time for cracking my own software :)

     Q: I can`t crack this crackme ???
     A: Well i would rate this crackme 9/10, so if you can`t complain to your mother :)

     Q: Crackme doesn`t work on my OS ???
     A: I have tested it on XP and it works fine ??? Upgrade your system :)

     Q: Will you join our cracking team ???
     A: No, i don`t crack shareware no more :) It is not fun anymore :O)

                    =------------------------------------------=
                    web:            http://ap0x.headcoders.net
                    mail:           ap0x.rce[at]gmail[dot]com
                    =------------------------------------------=
附件:NAG-Crypto.rar
这个有点意思

最后是一个patchme附件:patchme_no1.rar

有兴趣的朋友可以试试，放上来纯属好玩，别无他意～

[招生]科锐逆向工程师培训(2024年11月15日实地，远程教学同时开班, 第51期)