cyclops's NTS-Crackme5
| Download NTS-Crackme5.zip, 21 kb (password: crackmes.de) Browse contents of NTS-Crackme5.zip NTS(Newbie Cracking Series)-Crackme5
Difficulty: 1 - Very easy, for newbies | Send a message to cyclops » View profile of cyclops » |
Solutions
Solution by sir_edmar, published 14. sep, 2010; download (55 kb), password: crackmes.de or browse.
sir_edmar has rated this crackme as quite nice.
Solution by boof, published 08. jan, 2007; download (1122 kb), password: crackmes.de or browse.
boof has rated this crackme as awesome.
Discussion and comments
| macabre 28. Dec 2006 | Perhaps I'm missing something but the first check on the serial seems flawed. Ex: Say I use: name: macabre serial: 3F572C90-E7E1EAD0-AF248278-A07E801C because the strcmp section used (00401390) checks "3F572C90-E7E1EAD0" against a string generated with %08X-%08X 2 bytes at a time... issue is the generated string is not even (because of the '-') so the last byte check is a NULL \0...and we can't possible end our serial here because we have another section to check. As far as I can tell even if I generate the 'proper' serial it won't pass the strcmp like function. |
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| macabre 28. Dec 2006 | I believe this could be fixed by testing for null *before* doing the CMP. I think TEST CL,CL should come before the CMP DL,BL |
| cyclops Moderator 29. Dec 2006 | I have got the same query from my frndz also. All i tell is, " Look CARE FULLY at sscanf()"..... |
| macabre 29. Dec 2006 | lol... crap... got schooled by sscanf() Ok, now I got it working :P Thx!! |
| snakies 17. Jan 2007 | thanks for the heads up. i was scratching my head for the same reason. got it working now though thanks. now to create a keygen. thanks for my first crack ever! |
| kilobyte.asm 16. Jun 2009 | thank God for online linux man pages |
| sir_edmar 09. Sep 2010 | finally! i got my keygen working! this one fucked my brain very hard! i really need to learn asm better :) |
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