def pretty_repr(self, full_config_data):
        data_offset = full_config_data.find(self.binary_repr())
        if data_offset < 0 and self.datatype == confConsts.TYPE_STR:
            self.length = 16
            while self.length < 2048:
                data_offset = full_config_data.find(self.binary_repr())
                if data_offset > 0:
                    break
                self.length *= 2

        if data_offset < 0:
            return 'Not Found'

        repr_len = len(self.binary_repr())
        conf_data = full_config_data[data_offset + repr_len:data_offset +
                                     repr_len + self.length]
        if self.datatype == confConsts.TYPE_SHORT:
            conf_data = unpack('>H', conf_data)[0]
            if self.is_bool:
                ret = 'False' if conf_data == self.bool_false_value else 'True'
                return ret
            elif self.enum:
                return self.enum[conf_data]
            elif self.mask:
                ret_arr = []
                for k, v in self.mask.items():
                    if k == 0 and k == conf_data:
                        ret_arr.append(v)
                    if k & conf_data:
                        ret_arr.append(v)
                return ret_arr
            else:
                return conf_data

        elif self.datatype == confConsts.TYPE_INT:
            if self.is_ipaddress:
                return inet_ntoa(conf_data)

            else:
                conf_data = unpack('>i', conf_data)[0]
                if self.is_date and conf_data != 0:
                    fulldate = str(conf_data)
                    return "%s-%s-%s" % (fulldate[0:4], fulldate[4:6],
                                         fulldate[6:])

                return conf_data

        if self.is_blob:
            if self.enum != None:
                ret_arr = []
                i = 0
                while i < len(conf_data):
                    v = conf_data[i]
                    if v == 0:
                        return ret_arr
                    v = self.enum[v]
                    if v:
                        ret_arr.append(v)
                        i += 1

                    # Only EXECUTE_TYPE for now
                    else:
                        # Skipping unknown short value in the start
                        string1 = netunpack(b'I$',
                                            conf_data[i + 3:])[0].decode()
                        string2 = netunpack(
                            b'I$',
                            conf_data[i + 3 + 4 + len(string1):])[0].decode()
                        ret_arr.append(
                            "%s:%s" %
                            (string1.strip('\x00'), string2.strip('\x00')))
                        i += len(string1) + len(string2) + 11

            if self.is_transform:
                if conf_data == bytes(len(conf_data)):
                    return 'Empty'

                ret_arr = []
                prepend_length = unpack('>I', conf_data[0:4])[0]
                prepend = conf_data[4:4 + prepend_length]
                append_length_offset = prepend_length + 4
                append_length = unpack(
                    '>I', conf_data[append_length_offset:append_length_offset +
                                    4])[0]
                append = conf_data[append_length_offset +
                                   4:append_length_offset + 4 + append_length]
                ret_arr.append(prepend)
                ret_arr.append(append if append_length < 256
                               and append != bytes(append_length) else 'Empty')
                return ret_arr

            if self.is_malleable_stream:
                prog = []
                fh = io.BytesIO(conf_data)
                while True:
                    op = read_dword_be(fh)
                    if not op:
                        break
                    if op == 1:
                        l = read_dword_be(fh)
                        prog.append("Remove %d bytes from the end" % l)
                    elif op == 2:
                        l = read_dword_be(fh)
                        prog.append("Remove %d bytes from the beginning" % l)
                    elif op == 3:
                        prog.append("Base64 decode")
                    elif op == 8:
                        prog.append("NetBIOS decode 'a'")
                    elif op == 11:
                        prog.append("NetBIOS decode 'A'")
                    elif op == 13:
                        prog.append("Base64 URL-safe decode")
                    elif op == 15:
                        prog.append("XOR mask w/ random key")

                conf_data = prog
            if self.hashBlob:
                conf_data = conf_data.strip(b'\x00')
                conf_data = hashlib.md5(conf_data).hexdigest()

            return conf_data

        if self.is_headers:
            return self.parse_transformdata(conf_data)

        conf_data = conf_data.strip(b'\x00').decode()
        return conf_data
Exemplo n.º 2
0
    def pretty_repr(self, full_config_data):
        data_offset = full_config_data.find(self.binary_repr())
        if data_offset < 0:
            return "Not Found"

        repr_len = len(self.binary_repr())
        conf_data = full_config_data[data_offset + repr_len:data_offset +
                                     repr_len + self.length]
        if self.datatype == confConsts.TYPE_SHORT:
            conf_data = unpack(">H", conf_data)[0]
            if self.is_bool:
                ret = "False" if conf_data == self.bool_false_value else "True"
                return ret
            elif self.enum:
                return self.enum[conf_data]
            elif self.mask:
                ret_arr = []
                for k, v in self.mask.items():
                    if k == 0 and k == conf_data:
                        ret_arr.append(v)
                    if k & conf_data:
                        ret_arr.append(v)
                return ret_arr
            else:
                return conf_data

        elif self.datatype == confConsts.TYPE_INT:
            if self.is_ipaddress:
                return inet_ntoa(conf_data)

            else:
                conf_data = unpack(">I", conf_data)[0]
                if self.is_date and conf_data != 0:
                    fulldate = str(conf_data)
                    return f"{fulldate[0:4]}-{fulldate[4:6]}-{fulldate[6:]}"

                return conf_data

        if self.is_blob:
            if self.enum is not None:
                ret_arr = []
                i = 0
                while i < len(conf_data):
                    v = conf_data[i]
                    if v == 0:
                        return ret_arr
                    v = self.enum[v]
                    if v:
                        ret_arr.append(v)
                        i += 1

                    # Only EXECUTE_TYPE for now
                    else:
                        # Skipping unknown short value in the start
                        string1 = netunpack(b"I$",
                                            conf_data[i + 3:])[0].decode()
                        string2 = netunpack(
                            b"I$",
                            conf_data[i + 3 + 4 + len(string1):])[0].decode()
                        ret_arr.append("{}:{}".format(string1.strip("\x00"),
                                                      string2.strip("\x00")))
                        i += len(string1) + len(string2) + 11

            elif self.is_transform:
                if conf_data == bytes(len(conf_data)):
                    return "Empty"

                ret_arr = []
                prepend_length = unpack(">I", conf_data[0:4])[0]
                prepend = conf_data[4:4 + prepend_length].hex()
                append_length_offset = prepend_length + 4
                append_length = unpack(
                    ">I", conf_data[append_length_offset:append_length_offset +
                                    4])[0]
                append = conf_data[append_length_offset +
                                   4:append_length_offset + 4 +
                                   append_length].hex()
                ret_arr.append(prepend)
                ret_arr.append(append if append_length < 256
                               and append != bytes(append_length) else "Empty")
                return ret_arr

            elif self.is_malleable_stream:
                prog = []
                fh = io.BytesIO(conf_data)
                while True:
                    op = read_dword_be(fh)
                    if not op:
                        break
                    if op == 1:
                        l = read_dword_be(fh)
                        prog.append(f"Remove {l} bytes from the end")
                    elif op == 2:
                        l = read_dword_be(fh)
                        prog.append(f"Remove {l} bytes from the beginning")
                    elif op == 3:
                        prog.append("Base64 decode")
                    elif op == 8:
                        prog.append("NetBIOS decode 'a'")
                    elif op == 11:
                        prog.append("NetBIOS decode 'A'")
                    elif op == 13:
                        prog.append("Base64 URL-safe decode")
                    elif op == 15:
                        prog.append("XOR mask w/ random key")

                conf_data = prog

            else:
                conf_data = conf_data.hex()

            return conf_data

        if self.is_headers:
            conf_data = conf_data.strip(b"\x00")
            conf_data = [
                chunk[1:].decode() for chunk in conf_data.split(b"\x00")
                if len(chunk) > 1
            ]
            return conf_data

        conf_data = conf_data.strip(b"\x00").decode()
        return conf_data
Exemplo n.º 3
0
    def pretty_repr(self, full_config_data):
        data_offset = full_config_data.find(self.binary_repr())
        if data_offset < 0:
            return "Not Found"

        repr_len = len(self.binary_repr())
        conf_data = full_config_data[data_offset + repr_len:data_offset +
                                     repr_len + self.length]
        if self.datatype == confConsts.TYPE_SHORT:
            conf_data = unpack(">H", conf_data)[0]
            if self.is_bool:
                ret = "False" if conf_data == self.bool_false_value else "True"
                return ret
            elif self.enum:
                return self.enum[conf_data]
            elif self.mask:
                ret_arr = []
                for k, v in self.mask.items():
                    if k == 0 and k == conf_data:
                        ret_arr.append(v)
                    if k & conf_data:
                        ret_arr.append(v)
                return ret_arr
            else:
                return conf_data

        elif self.datatype == confConsts.TYPE_INT:
            if self.is_ipaddress:
                return inet_ntoa(conf_data)

            else:
                conf_data = unpack(">I", conf_data)[0]
                if self.is_date and conf_data != 0:
                    fulldate = str(conf_data)
                    return "%s-%s-%s" % (fulldate[0:4], fulldate[4:6],
                                         fulldate[6:])

                return conf_data

        if self.is_blob:
            if self.enum != None:
                ret_arr = []
                i = 0
                while i < len(conf_data):
                    v = conf_data[i]
                    if v == 0:
                        return ret_arr
                    v = self.enum[v]
                    if v:
                        ret_arr.append(v)
                        i += 1

                    # Only EXECUTE_TYPE for now
                    else:
                        # Skipping unknown short value in the start
                        string1 = netunpack(b"I$",
                                            conf_data[i + 3:])[0].decode()
                        string2 = netunpack(
                            b"I$",
                            conf_data[i + 3 + 4 + len(string1):])[0].decode()
                        ret_arr.append(
                            "%s:%s" %
                            (string1.strip("\x00"), string2.strip("\x00")))
                        i += len(string1) + len(string2) + 11

            if self.is_transform:
                if conf_data == bytes(len(conf_data)):
                    return "Empty"

                ret_arr = []
                prepend_length = unpack(">I", conf_data[0:4])[0]
                prepend = conf_data[4:4 + prepend_length]
                append_length_offset = prepend_length + 4
                append_length = unpack(
                    ">I", conf_data[append_length_offset:append_length_offset +
                                    4])[0]
                append = conf_data[append_length_offset +
                                   4:append_length_offset + 4 + append_length]
                ret_arr.append(prepend)
                ret_arr.append(append if append_length < 256
                               and append != bytes(append_length) else "Empty")
                return ret_arr

            return conf_data

        if self.is_headers:
            conf_data = conf_data.strip(b"\x00")
            conf_data = [
                chunk[1:].decode() for chunk in conf_data.split(b"\x00")
                if len(chunk) > 1
            ]
            return conf_data

        conf_data = conf_data.strip(b"\x00").decode()
        return conf_data