Converts 16 bytes to a UUID using Microsoft's Variant 2 format.

byte2uuid.py

import ctypes

class BYTE2UUID(ctypes.Structure):
    """
    Variant 2 UUIDs
        https://en.wikipedia.org/wiki/Universally_unique_identifier#Encoding
    """
    _fields_ = [
        ("time_low", ctypes.c_uint), ("time_mid", ctypes.c_ushort), ("time_hi_and_version", ctypes.c_ushort),
        ("clock_seq_hi_and_res", ctypes.c_char * 2), ("node", ctypes.c_char * 6)
    ]

    def __new__(cls, buffer):
        return cls.from_buffer_copy(buffer)

    def __init__(self, data):
        self.uuid = "%08x-%04x-%04x-%04x-%012x"  % (self.time_low, self.time_mid, self.time_hi_and_version,
                                                    int.from_bytes(self.clock_seq_hi_and_res, "big"), int.from_bytes(self.node, "big"))
        return None

# example using IDA or replace "idc.get_bytes(here(), 16)" with b'\r*\xa6\x85\x17~_H\x9dOt\x9a(q\x93\xa6'
# p_data = BYTE2UUID(idc.get_bytes(here(), 16))
# print(p_data.uuid)