某 so 字符串混淆解密

伪代码:

def decode(enc, index_func, xor_const):out = bytearray()for i, b in enumerate(enc):out.append(b ^ index_func(i) ^ xor_const)return out.decode(errors="ignore")
print(decode(b"cbrQrlr^mik",lambda i: i + 1,14 ^ 0xB
))

out="getPropSafe"

code txt:

v1202[0] = 1;                       // cipher flag
v1202[1] = 14;                      // xor key
qmemcpy(&v1202[2], "cbrQrlr^mik", 11);// getPropSafe
*(_QWORD *)&v1209[0] = v1119;
v21 = v1120;
v22 = 43470561;
while ( v22 != 1703139737 )
{*(_BYTE *)v21 = 0;v21 = (size_t *)((char *)v21 + 1);if ( v21 == *(size_t **)&v1209[0] )v22 = 1703139737;elsev22 = 43470561;
}
*(_QWORD *)v1208 = v1202;
LOBYTE(v1161[0]) = v1202[0];
for ( j = -482054042; ; j = -1477169417 )
{while ( 1 ){while ( j <= -644201365 ){if ( j > -1383186944 ){if ( j == -1383186943 ){*(_QWORD *)&v1206 = v1206 + 1;// index++}else{*(_QWORD *)&v1200[0] = &v1206;*(_QWORD *)&v1206 = 0;}j = -644201364;}else if ( j == -1611158705 ){v1202[13] = 0;v1202[14] = 0;**(_BYTE **)v1208 = 0;j = 497067201;}else{**(_BYTE **)&v1209[0] = v1187;// out[i] = chj = -1383186943;}}if ( j > 497067200 )break;if ( j == -644201364 ){if ( (unsigned __int64)v1206 >= 0xB )// break loopj = -1611158705;elsej = 1289219465;}else if ( ((__int64)v1161[0] & 1) != 0 ){j = -1338378762;}else{j = 497067201;}}if ( j != 1289219465 )break;LOBYTE(v1187) = v1202[v1206 + 2] ^ (v1206 + 1) ^ v1202[1] ^ 0xB;// ch = cipher[i] ^ (i + 1) ^ (xorKey ^ 0xB)*(_QWORD *)&v1209[0] = &v1202[v1206 + 2];// out index++, in place modify
}