下载页面: http://protools.anticrack.de/packers.htm 以前DOWN的 ^O^ 软件大小: 45 KB
【软件简介】: code,data,import compression(based on APLIB v0.26b by Joergen Ibsen)&encryption;new technique was developed to increase compression ratio; protection against cracking&reverse engeenering; bpx protection; import table handling;advanced import table protection.
【作者声明】:初学Crack,只是感兴趣,没有其它目的。失误之处敬请诸位大侠赐教!
【破解工具】:Ollydbg1.09、PEiD、LordPE、Import REConstructor V1.4.2+
————————————————————————————————— 【脱壳过程】: PeX 壳应该是罕见的,至少我没见过用PeX保护的软件。既然loveboom兄弟提出来我就学习一下吧。呵呵,偶是脱壳白痴,碰不了猛壳,只好看看名不见经传的小壳,^O^ 但是这个壳却不算太弱呀,首次跟踪一不小心就OVER了。
下面的调试环境是:WinXP + Ollydbg ———————————————————————— 00408000 E9 F5000000 jmp pex.004080FA ====>进入OD后断在这!F7进入!
00408005 0D 0AC4C4C4 or eax,C4C4C40A
这种入口方式是固定的,很容易辨认 ^O^
———————————————————————— 这下面就要小心了,如果用F7走就很容易迷入陷阱!呵呵,所以这次采取另外的方法啦。 可以看见下面的call 0040XXXX,用F4走过去,但是这样还是要F4很多次,并且不小心就晕入循环!好了,往下看,使劲向下看:popad、retn在004082FA处,直接在004082FA下断,F9,砰,睁开眼睛,高兴的看见安全着陆啦! 这是对付PeX壳的有效方法,我已实验过N次啦。
004080FA 60 pushad 004080FB E8 01000000 call pex.00408101 ====>F7进去就OVER啦
00408100 E8 83C404E8 call E8454588 00408105 0100 add dword ptr ds:[eax],eax 00408107 0000 add byte ptr ds:[eax],al 00408109 - E9 5D81EDD5 jmp D62E026B 0040810E 2240 00 and al,byte ptr ds:[eax] 00408111 E8 06020000 call pex.0040831C 00408116 E8 EB08EB02 call 032B8A06 0040811B CD20 FF24249A vxdcall 9A2424FF 00408121 66:BE 4746 mov si,4647 00408125 E8 01000000 call pex.0040812B 0040812A 9A 598D9527 2340 call far 4023:27958D59 00408131 00E8 add al,ch 00408133 0100 add dword ptr ds:[eax],eax 00408135 0000 add byte ptr ds:[eax],al 00408137 6958 66 BF4D4AE8 imul ebx,dword ptr ds:[eax+66],E84A4DBF 0040813E C101 00 rol dword ptr ds:[ecx],0 00408141 008D 52F9E801 add byte ptr ss:[ebp+1E8F952],cl 00408147 0000 add byte ptr ds:[eax],al 00408149 00E8 add al,ch 0040814B 5B pop ebx 0040814C 68 CCFFE29A push 9AE2FFCC 00408151 FFE4 jmp esp 00408153 69FF A5452540 imul edi,edi,402545A5 00408159 00E9 add cl,ch 0040815B E8 B9FFFFFF call pex.00408119 00408160 EB 02 jmp short pex.00408164 00408162 CD20 8BC4EB02 vxdcall 2EBC48B 00408168 CD20 81001600 vxdcall 160081 0040816E 0000 add byte ptr ds:[eax],al 00408170 0F85 A6010000 jnz pex.0040831C 00408176 69E8 00000000 imul ebp,eax,0 0040817C 58 pop eax 0040817D 99 cdq 0040817E 80CA 15 or dl,15 00408181 8D0402 lea eax,dword ptr ds:[edx+eax] 00408184 50 push eax 00408185 E8 72010000 call pex.004082FC 0040818A 66:3D 86F3 cmp ax,0F386 0040818E 74 03 je short pex.00408193 00408190 - E9 8D95CB23 jmp 240C1722 00408195 40 inc eax 00408196 00E8 add al,ch 00408198 67:0100 add dword ptr ds:[bx+si],eax 0040819B 00E8 add al,ch 0040819D 0100 add dword ptr ds:[eax],eax 0040819F 0000 add byte ptr ds:[eax],al 004081A1 6983 C4048DBD CA2540>imul eax,dword ptr ds:[ebx+BD8D04C4],pex.004025CA 004081AB B9 89210000 mov ecx,2189 004081B0 BA 0CC8B7E1 mov edx,E1B7C80C 004081B5 8A07 mov al,byte ptr ds:[edi] 004081B7 D2C0 rol al,cl 004081B9 D2C8 ror al,cl 004081BB 32C1 xor al,cl 004081BD F6D0 not al 004081BF 32C5 xor al,ch 004081C1 32C2 xor al,dl 004081C3 32C6 xor al,dh 004081C5 D2C0 rol al,cl 004081C7 02C1 add al,cl 004081C9 02C5 add al,ch 004081CB F6D8 neg al 004081CD 02C2 add al,dl 004081CF 02C6 add al,dh 004081D1 D2C8 ror al,cl 004081D3 2AC1 sub al,cl 004081D5 2AC5 sub al,ch 004081D7 F6D0 not al 004081D9 2AC2 sub al,dl 004081DB 2AC6 sub al,dh 004081DD D3C2 rol edx,cl 004081DF 8807 mov byte ptr ds:[edi],al 004081E1 47 inc edi 004081E2 49 dec ecx 004081E3 ^ 75 D0 jnz short pex.004081B5 004081E5 E8 01000000 call pex.004081EB 004081EA E8 83C4040F call 0F454672 004081EF 0BE8 or ebp,eax 004081F1 2BD2 sub edx,edx 004081F3 64:8B02 mov eax,dword ptr fs:[edx] 004081F6 8B20 mov esp,dword ptr ds:[eax] 004081F8 64:8F02 pop dword ptr fs:[edx] 004081FB 58 pop eax 004081FC 5D pop ebp 004081FD C3 retn 004081FE 9A 8B954525 4000 call far 0040:2545958B 00408205 E8 F9000000 call pex.00408303 0040820A E8 01000000 call pex.00408210 0040820F C783 C404BB73 4E0000>mov dword ptr ds:[ebx+73BB04C4],6A00004E 00408219 04 68 add al,68 0040821B 0030 add byte ptr ds:[eax],dh 0040821D 0000 add byte ptr ds:[eax],al 0040821F 53 push ebx 00408220 6A 00 push 0 00408222 FF95 49254000 call dword ptr ss:[ebp+402549] 00408228 E8 01000000 call pex.0040822E 0040822D E8 83C40468 call 684546B5 00408232 0040 00 add byte ptr ds:[eax],al 00408235 0053 50 add byte ptr ds:[ebx+50],dl 00408238 E8 01000000 call pex.0040823E 0040823D - E9 83C40450 jmp 504546C5 00408242 8D95 CA254000 lea edx,dword ptr ss:[ebp+4025CA] 00408248 52 push edx 00408249 E8 0E000000 call pex.0040825C 0040824E E8 01000000 call pex.00408254 00408253 6983 C4045A5E 0E56CB>imul eax,dword ptr ds:[ebx+5E5A04C4],60CB560E 0040825D 8B7424 24 mov esi,dword ptr ss:[esp+24] 00408261 8B7C24 28 mov edi,dword ptr ss:[esp+28] 00408265 FC cld 00408266 B2 80 mov dl,80 00408268 A4 movs byte ptr es:[edi],byte ptr ds:[esi] 00408269 E8 68000000 call pex.004082D6 0040826E ^ 73 F8 jnb short pex.00408268 00408270 2BC9 sub ecx,ecx 00408272 E8 5F000000 call pex.004082D6 00408277 73 1A jnb short pex.00408293 00408279 2BC0 sub eax,eax 0040827B E8 56000000 call pex.004082D6 00408280 73 20 jnb short pex.004082A2 00408282 41 inc ecx 00408283 B0 10 mov al,10 00408285 E8 4C000000 call pex.004082D6 0040828A 12C0 adc al,al 0040828C ^ 73 F7 jnb short pex.00408285 0040828E 75 3C jnz short pex.004082CC 00408290 AA stos byte ptr es:[edi] 00408291 ^ EB D6 jmp short pex.00408269 00408293 E8 4A000000 call pex.004082E2 00408298 49 dec ecx 00408299 E2 10 loopd short pex.004082AB 0040829B E8 40000000 call pex.004082E0 004082A0 EB 28 jmp short pex.004082CA 004082A2 AC lods byte ptr ds:[esi] 004082A3 D1E8 shr eax,1 004082A5 74 4B je short pex.004082F2 004082A7 13C9 adc ecx,ecx 004082A9 EB 1C jmp short pex.004082C7 004082AB 91 xchg eax,ecx 004082AC 48 dec eax 004082AD C1E0 08 shl eax,8 004082B0 AC lods byte ptr ds:[esi] 004082B1 E8 2A000000 call pex.004082E0 004082B6 3D 007D0000 cmp eax,7D00 004082BB 73 0A jnb short pex.004082C7 004082BD 80FC 05 cmp ah,5 004082C0 73 06 jnb short pex.004082C8 004082C2 83F8 7F cmp eax,7F 004082C5 77 02 ja short pex.004082C9 004082C7 41 inc ecx 004082C8 41 inc ecx 004082C9 95 xchg eax,ebp 004082CA 8BC5 mov eax,ebp 004082CC 56 push esi 004082CD 8BF7 mov esi,edi 004082CF 2BF0 sub esi,eax 004082D1 F3:A4 rep movs byte ptr es:[edi],byte ptr ds:[esi] 004082D3 5E pop esi 004082D4 ^ EB 93 jmp short pex.00408269 004082D6 02D2 add dl,dl 004082D8 75 05 jnz short pex.004082DF 004082DA 8A16 mov dl,byte ptr ds:[esi] 004082DC 46 inc esi 004082DD 12D2 adc dl,dl 004082DF C3 retn ====>这上面都是循环啦
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