DaXXoR 101's DaXXoR Multi-Crackme
| Download DaXXoR#4.zip, 290 kb (password: crackmes.de) Browse contents of DaXXoR#4.zip Unpack, Disable the nag, Find a valid serial. Should be fairly easy.
Difficulty: 2 - Needs a little brain (or luck) | Send a message to DaXXoR 101 » View profile of DaXXoR 101 » |
Solutions
Solution by Oorja-HalT, published 20. nov, 2004; download (7 kb), password: crackmes.de or browse.
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Solution by scarabee, published 20. nov, 2004; download (5 kb), password: crackmes.de or browse.
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Discussion and comments
| jinkx 16. Aug 2014 | hi everyone, just a little question to the FLD instruction to understand the mathematic operation. As it says in the solution, the value from my 2nd inputbox isnt there. Where can i find it? What i have: 2nd editbox string value: "6544" 1st the Command. ok push something in ST(0) 00401C97 . DD45 B4 FLD QWORD PTR SS:[EBP-4C] ;//value in 2nd edit box is loaded in FPU\\ //Does this address [EBP-4C] means the Value is 0xh"00000000 40C60780" ? //=> i think here i do not understand whats going on!? This is on my Stack: EBP-50 > 40C60780 €Æ@ EBP-4C > 00000000 .... EBP-48 > 40B99000 .¹@ EBP-44 > 00000000 .... What is my FPU register looks like before command: EAX 00184000 ECX 0018F2A0 EDX 0018F27C EBX 004D4DB4 ESP 0018F248 EBP 0018F2B0 ESI 0049E390 unpacked.0049E390 EDI 0018F434 EIP 00401CAE unpacked.00401CAE ST0 empty g ST1 empty g ST2 empty g ST3 empty g ST4 empty g ST5 empty g ST6 empty g ST7 empty g 3 2 1 0 E S P U O Z D I FST 4000 Cond 1 0 0 0 Err 0 0 0 0 0 0 0 0 (EQ) FCW 1372 Prec NEAR,64 Mask 1 1 0 0 1 0 and after command: EAX 0018F2A0 ECX 0018F2A0 EDX 0018F27C EBX 004D4DB4 ESP 0018F248 EBP 0018F2B0 ESI 0049E390 unpacked.0049E390 EDI 0018F434 EIP 00401C9A unpacked.00401C9A C 0 ES 002B 32bit 0(FFFFFFFF) P 1 CS 0023 32bit 0(FFFFFFFF) A 0 SS 002B 32bit 0(FFFFFFFF) Z 1 DS 002B 32bit 0(FFFFFFFF) S 0 FS 0053 32bit 7EFDD000(FFF) T 0 GS 002B 32bit 0(FFFFFFFF) D 0 O 0 LastErr ERROR_SUCCESS (00000000) EFL 00000246 (NO,NB,E,BE,NS,PE,GE,LE) ST0 valid g ST1 empty g ST2 empty g ST3 empty g ST4 empty g ST5 empty g ST6 empty g ST7 empty g 3 2 1 0 E S P U O Z D I FST 7800 Cond 1 0 0 0 Err 0 0 0 0 0 0 0 0 (EQ) FCW 1372 Prec NEAR,64 Mask 1 1 0 0 1 0 thanks for comment this regards |
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