initialize_string_table_variables.py

#!/usr/bin/env python3
from binaryninja import *


def replace_non_alphanumeric_characters(input_string):
    copy = input_string
    copy = ''.join(filter(str.isalnum, input_string))
    return copy


initialize_string_table_callers = bv.get_functions_by_name("initialize_string_table")[0].callers

for caller in initialize_string_table_callers:
    for h in caller.medium_level_il.instructions:
        if isinstance(h, MediumLevelILCall):
            if h.tokens[0].text == "0x7ff71634c9e0":
                # and h.params[2].operation ==
                if h.params[1].operation == MediumLevelILOperation.MLIL_CONST_PTR and h.params[2].operation == MediumLevelILOperation.MLIL_CONST_PTR:
                    arg1 = bv.get_data_var_at(h.params[1].value.value)
                    arg2 = bv.get_string_at(h.params[2].value.value)
                    if arg1 is not None and arg2 is not None:

                        arg2 = replace_non_alphanumeric_characters(arg2.value)
                        # arg1.name = arg2
                        if arg2 is not "Error":
                            print("call to initialize_string_table")
                            print(f"arg1: {arg1}, arg2: {arg2}")
                            print(f"{str(h)} is a call!")
                            arg1.name = f"str_{arg2}"