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find_data_ptr.py

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+import idautils 
+import idc 
+import idaapi 
+
+# Get the start and end addresses of .data segment 
+data_seg = idaapi.get_segm_by_name('.data') 
+if data_seg: 
+    data_start, data_end = data_seg.start_ea, data_seg.end_ea 
+else: 
+    print("Error: .data segment not found.") 
+    exit() 
+
+global_vars = {} 
+
+# Traverse all functions in the IDB 
+for function_ea in idautils.Functions(): 
+    # Traverse all instruction addresses in the current function 
+    for instruction_ea in idautils.FuncItems(function_ea): 
+        # Check if the instruction operates on a memory location 
+        if idc.is_loaded(idc.get_operand_value(instruction_ea, 1)): 
+            # Get the segment address of the memory location 
+            seg_ea = idaapi.getseg(idc.get_operand_value(instruction_ea, 1)).start_ea 
+
+            # Check if the segment is the .data segment 
+            if seg_ea == data_start: 
+                # Get the name of the global variable being accessed 
+                global_var_name = idc.get_name(idc.get_operand_value(instruction_ea, 1)) 
+
+                # If the global variable is not already in the dictionary, add it 
+                if global_var_name not in global_vars: 
+                    global_vars[global_var_name] = {'refs': [], 'calls': []} 
+
+                # Add the current instruction address to the list of references for the current global variable 
+                global_vars[global_var_name]['refs'].append(instruction_ea) 
+
+                # Check if the next instruction is a call instruction 
+                if idaapi.is_call_insn(instruction_ea + idaapi.get_item_size(instruction_ea)): 
+                    # Get the address being called 
+                    call_instr_ea = instruction_ea + idaapi.get_item_size(instruction_ea) 
+                    call_ea = idc.get_operand_value(call_instr_ea, 0) 
+
+                    # If the call is to a function, add it to the list of calls for the current global variable 
+                    if idaapi.get_func(call_ea): 
+                        global_vars[global_var_name]['calls'].append((call_ea, call_instr_ea)) 
+
+# Output the results to the console 
+for global_var_name, info_dict in global_vars.items(): 
+    print(".data ptr: %s" % global_var_name) 
+
+    if info_dict['refs']: 
+        print("  References:") 
+        for ref_ea in info_dict['refs']: 
+            func = idaapi.get_func(ref_ea) 
+            func_ea = func.start_ea 
+            func_name = idaapi.get_func_name(func_ea) 
+            print("    0x%x in function %s" % (ref_ea, func_name)) 
+
+    if info_dict['calls']: 
+        print("  Calls:") 
+        for call_ea, call_instr_ea in info_dict['calls']: 
+            unc = idaapi.get_func(call_ea) 
+            func_ea = func.start_ea 
+            func_name = idaapi.get_func_name(func_ea) 
+            print("    Function %s (called at: 0x%x)" % (func_name, call_instr_ea))