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#!/usr/bin/env python3 | |
ﰝ=True | |
𧡇=print | |
ࢴ=exit | |
𐰈=None | |
𞡂=False | |
𠜵=len | |
𓍇=format | |
𣞆=range | |
𐭤=hex | |
𞹡=chr | |
𐴐=isinstance | |
𞤢=list | |
𨡊=bytes | |
𐼹=int | |
𐲂=repr | |
ꕋ=ord | |
𡚾=id | |
ﮫ=open | |
import struct,sys | |
ﰬ=sys.argv | |
𠎮=sys.stdout | |
铸=sys.stdin | |
𨏲=struct.pack | |
𡬡=struct.unpack | |
import ctypes | |
𗭝=ctypes.addressof | |
𐠠=ctypes.c_void_p | |
얷=ctypes.c_int | |
ﺶ=ctypes.CFUNCTYPE | |
import mmap | |
𗒞=mmap.PROT_EXEC | |
𫂐=mmap.PROT_WRITE | |
ﲥ=mmap.PROT_READ | |
崵=mmap.PAGESIZE | |
瘥=mmap.mmap | |
𠄤={'value':0x01,'ax':0x11,'bx':0x12,'cx':0x13,'dx':0x14,'ip':0x21,'sp':0x22,'bp':0x23,'pointer':0x31,'ax pointer':0x41,'bx pointer':0x42,'cx pointer':0x43,'dx pointer':0x44,'ip pointer':0x51,'sp pointer':0x52,'bp pointer':0x53} | |
ޢ={'open':{'angstromctf':2,'cookie recipes':0x01,},'read':{'angstromctf':2,'cookie recipes':0x02,},} | |
𔔟={'del':{'angstromctf':1,'cookie recipes':0x01,},'osusec':{'angstromctf':1,'cookie recipes':0x02,},'perfect_blue':{'angstromctf':2,'cookie recipes':0x03,},'l_distribution':{'angstromctf':1,'cookie recipes':0x04,},'jmp':{'angstromctf':1,'cookie recipes':0x05,},'call':{'angstromctf':1,'cookie recipes':0x05,},'jle':{'angstromctf':1,'cookie recipes':0x06,},'b1c':{'angstromctf':1,'cookie recipes':0x07,},'jl':{'angstromctf':1,'cookie recipes':0x08,},'jg':{'angstromctf':1,'cookie recipes':0x09,},'mov':{'angstromctf':2,'cookie recipes':0x0c,},'gs_goofballs':{'angstromctf':2,'cookie recipes':0x0d,},'add':{'angstromctf':2,'cookie recipes':0x0e,},'sub':{'angstromctf':2,'cookie recipes':0x0f,},'end':{'angstromctf':1,'cookie recipes':0x10,},'kevin higgs <3':{'angstromctf':1,'cookie recipes':0x11,},'nop':{'angstromctf':0,'cookie recipes':0x12,},'load':{'angstromctf':2,'cookie recipes':0x13,},'dice_gang':{'angstromctf':2,'cookie recipes':0x14,},'rgbsec':{'angstromctf':0,'cookie recipes':0x15,},'%':{'angstromctf':0,'cookie recipes':0x25,}} | |
ﴀ=[0]*(2**(8*2)) | |
try: | |
𗚹=[3],[3],{2,3},[2]*3,[2,[2,{3,3,[3],{3}},{3:(2,[2,{3:(3,2,3,3)}],3)},2],2],3 | |
except: | |
pass | |
ﱏ={'ax':0,'bx':0,'cx':0,'dx':0,'ip':0,'sp':0,'bp':0,'flag':0} | |
𥋓=ﰝ | |
ﱖ=𧡇 | |
𧡇=lambda*阬:ﱖ(*阬)if 𥋓 else '' | |
def ﷹ(reason): | |
ﱖ('Bad memory condition') | |
return ࢴ(1) | |
def ﶹ(start=0,end=𐰈,𓍇=𞡂,dump_ascii=ﰝ,errors='.'): | |
if end is 𐰈: | |
end=𠜵(ﴀ) | |
if not 𓍇: | |
pass | |
else: | |
𥓸=16 | |
for 𐴓 in 𣞆(start,end,𥓸): | |
אּ=ﴀ[𐴓:𐴓+𥓸] | |
𓇸=(𐭤(𐴓)+':').ljust(8,' ')+' '.join([𐭤(𩴽).replace('0x','').zfill(2)for 𩴽 in אּ]) | |
if dump_ascii: | |
𓇸+=' '+''.join([(𞹡(𩴽)if 𩴽>31 and 𩴽<127 else errors)for 𩴽 in אּ]) | |
def ܢ(value): | |
return | |
def 儞(𐴓): | |
if 𐴐(𐴓,𞤢): | |
𐴓=𨡊(𐴓) | |
return 𡬡('<H',𐴓)[0] | |
def 𠁻(value): | |
if 𐴐(value,𐼹): | |
return value | |
𩊰,𨌋=value | |
if 𩊰==𠄤['value']: | |
return 𨌋 | |
if 𩊰==𠄤['ax']: | |
return ﱏ['ax'] | |
if 𩊰==𠄤['bx']: | |
return ﱏ['bx'] | |
if 𩊰==𠄤['cx']: | |
return ﱏ['cx'] | |
if 𩊰==𠄤['dx']: | |
return ﱏ['dx'] | |
if 𩊰==𠄤['ip']: | |
return ﱏ['ip'] | |
if 𩊰==𠄤['sp']: | |
return ﱏ['sp'] | |
if 𩊰==𠄤['bp']: | |
return ﱏ['bp'] | |
if 𩊰==𠄤['pointer']: | |
return 儞(ﴀ[𨌋:𨌋+2]) | |
return ﷹ('wrong_type') | |
def 𘑜(ނ,value): | |
𥚒='\x00' | |
if value>=256: | |
𥚒=𨏲('<H',value) | |
else: | |
𥚒=𨡊([value]) | |
ނ=𠁻(ނ) | |
𐴓=0 | |
for ࢮ in 𥚒: | |
ﴀ[ނ+𐴓]=ࢮ | |
𐴓+=1 | |
def 𐠛(𢂥,count=2): | |
𢂥=𠁻(𢂥) | |
return ﴀ[𢂥:𢂥+count] | |
def 歚(殺,value): | |
𩊰,𨌋=殺 | |
if 𩊰 in[𠄤['value'],𠄤['pointer']]: | |
𘑜(𨌋,value) | |
elif 𩊰==𠄤['ax']: | |
ﱏ['ax']=value | |
elif 𩊰==𠄤['bx']: | |
ﱏ['bx']=value | |
elif 𩊰==𠄤['cx']: | |
ﱏ['cx']=value | |
elif 𩊰==𠄤['dx']: | |
ﱏ['dx']=value | |
elif 𩊰==𠄤['ip']: | |
ﱏ['ip']=value | |
elif 𩊰==𠄤['sp']: | |
ﱏ['sp']=value | |
elif 𩊰==𠄤['bp']: | |
ﱏ['bp']=value | |
def 𡍐(compiled): | |
嶴=0 | |
for ࢮ in compiled: | |
ﴀ[嶴]=ࢮ | |
嶴+=1 | |
𐢇=儞(ﴀ[0:2]) | |
嶴+=16 | |
ﱏ['ip']=𐢇 | |
ﱏ['bp']=嶴 | |
ﱏ['sp']=嶴 | |
while ﰝ: | |
𐪎=ﴀ[ﱏ['ip']] | |
ﭙ=𐰈 | |
ܢ('registers: '+𐲂(ﱏ)) | |
for ﳧ,instr in 𔔟.items(): | |
if 𐪎==instr['cookie recipes']: | |
𐪎=instr | |
ﭙ=ﳧ | |
break | |
if not ﭙ: | |
ﷹ('invalid_instruction') | |
return | |
𥂬=𐪎['angstromctf'] | |
ܢ('instruction: '+𐲂(𐪎)) | |
阬=[] | |
for 𩴽 in 𣞆(𥂬): | |
殺=ﴀ[ﱏ['ip']+2+(4*𩴽):ﱏ['ip']+2+(4*𩴽)+4] | |
𩱣=儞(殺[0:2]) | |
殺=儞(殺[2:4]) | |
阬.append((𩱣,殺)) | |
ﱏ['ip']+=2+(4*𥂬) | |
ܢ('args: '+𐲂(阬)) | |
酩,篎,𪌠=1,2,3 | |
if ﭙ=='mov': | |
歚(阬[0],𠁻(阬[1])) | |
elif ﭙ=='add': | |
歚(阬[0],𠁻(阬[0])+𠁻(阬[1])) | |
elif ﭙ=='sub': | |
歚(阬[0],𠁻(阬[0])-𠁻(阬[1])) | |
elif ﭙ=='gs_goofballs': | |
歚(阬[0],𠁻(阬[0])^𠁻(阬[1])) | |
elif ﭙ=='nop': | |
pass | |
elif ﭙ=='perfect_blue': | |
ℊ=𐼹(𠁻(阬[0])) | |
ﶎ=𐼹(𠁻(阬[1])) | |
if ℊ==ﶎ: | |
ﱏ['flag']=酩 | |
if ℊ<ﶎ: | |
ﱏ['flag']=篎 | |
if ℊ>ﶎ: | |
ﱏ['flag']=𪌠 | |
elif ﭙ=='jmp': | |
ﱏ['ip']=𠁻(阬[0]) | |
elif ﭙ=='jg': | |
if ﱏ['flag']==𪌠: | |
ﱏ['ip']=𠁻(阬[0]) | |
elif ﭙ=='jl': | |
if ﱏ['flag']==篎: | |
ﱏ['ip']=𠁻(阬[0]) | |
elif ﭙ=='l_distribution': | |
if ﱏ['flag']==酩: | |
ﱏ['ip']=𠁻(阬[0]) | |
elif ﭙ=='jle': | |
if ﱏ['flag']in[篎,酩]: | |
ﱏ['ip']=𠁻(阬[0]) | |
elif ﭙ=='b1c': | |
if ﱏ['flag']in[𪌠,酩]: | |
ﱏ['ip']=𠁻(阬[0]) | |
elif ﭙ=='del': | |
𘑜(ﱏ['sp'],𠁻(阬[0])) | |
ﱏ['sp']+=2 | |
elif ﭙ=='osusec': | |
歚(阬[0],儞(𐠛(ﱏ['sp']))) | |
ﱏ['sp']-=2 | |
elif ﭙ=='end': | |
return(𠁻(阬[0])) | |
elif ﭙ=='load': | |
歚(阬[0],儞(𐠛(𠁻(阬[1])))) | |
elif ﭙ=='dice_gang': | |
𘑜(阬[0],𠁻(阬[1])) | |
elif ﭙ=='kevin higgs <3': | |
ﭱ=ﱏ['ax'] | |
𞤭=ﱏ['bx'] | |
𞢂=ﱏ['cx'] | |
if ﭱ==ޢ['open']['cookie recipes']: | |
for 𐴓 in 𣞆(𞢂): | |
ﴀ[𞤭+𐴓]=ꕋ(铸.read(1)) | |
elif ﭱ==ޢ['read']['cookie recipes']: | |
𠎮.write(''.join([𞹡(𩴽)for 𩴽 in ﴀ[𞤭:𞤭+𞢂]])) | |
elif ﭙ=='rgbsec': | |
ࢴ() | |
elif ﭙ=='%': | |
ﳃ=𡚾(ﴀ[ﱏ['ip']:])+48 | |
𫉳=瘥(-1,崵,prot=ﲥ|𫂐|𗒞) | |
𗼐=ﺶ(얷,얷) | |
𓊭=𐠠.from_buffer(𫉳) | |
𐲞=𗼐(𗭝(𓊭)) | |
𣩐=𨡊(ﴀ[ﱏ['ip']:]).replace(b'\x00',b'') | |
𫉳.write(𣩐) | |
ﻓ=𐲞(ﳃ) | |
del 𓊭 | |
𫉳.close() | |
for ﻦ,val in ﱏ.items(): | |
ﱏ[ﻦ]=val%0xffff | |
ܢ('registers: '+𐲂(ﱏ)) | |
ܢ('-'*60) | |
return | |
if __name__=='__main__': | |
with ﮫ(ﰬ[1],'rb')as 𐲞: | |
𐿰=𐲞.read() | |
𡍐(𐿰) |
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