import idautils
from idaapi import *
import re

sc = idautils.Strings()

packets = {}

for s in sc:
    value = str(s)
    if re.match("eTr[a-zA-Z0-9]+Ack", value):
        xrefs = idautils.XrefsTo(s.ea)
        for xref in xrefs:
            opcode = GetMnem(xref.frm)
            if opcode == 'lea':
                opcod2 =  GetMnem(xref.frm-0x4C)
                if opcod2 == 'mov':
                    packets[value.replace('eTr', '')] = hex(GetOperandValue(xref.frm-0x4C, 1)).replace('L', '')

with open('G:\\packets.txt', 'wb') as f:
    for opcode in packets:
        f.write(opcode + '=' + packets[opcode] + '\n')