diff --git a/shared/bin/zeek_threat_feed_utils.py b/shared/bin/zeek_threat_feed_utils.py
index 5ab872066..82c3b1e31 100644
--- a/shared/bin/zeek_threat_feed_utils.py
+++ b/shared/bin/zeek_threat_feed_utils.py
@@ -190,55 +190,11 @@ def download_to_file(url, session=None, local_filename=None, chunk_bytes=4096, s
         return None
 
 
-def mandiant_json_serializer(obj):
-    """
-    JSON serializer for mandiant_threatintel.APIResponse object (for debug output)
-    """
-
-    if isinstance(obj, datetime):
-        return obj.astimezone(UTCTimeZone).isoformat()
-
-    elif isinstance(obj, GeneratorType):
-        return list(map(mandiant_json_serializer, obj))
-
-    elif isinstance(obj, list):
-        return [mandiant_json_serializer(item) for item in obj]
-
-    elif isinstance(obj, dict):
-        return {key: mandiant_json_serializer(value) for key, value in obj.items()}
-
-    elif isinstance(obj, set):
-        return {mandiant_json_serializer(item) for item in obj}
-
-    elif isinstance(obj, tuple):
-        return tuple(mandiant_json_serializer(item) for item in obj)
-
-    elif isinstance(obj, FunctionType):
-        return f"function {obj.__name__}" if obj.__name__ != "<lambda>" else "lambda"
-
-    elif isinstance(obj, LambdaType):
-        return "lambda"
-
-    elif (not hasattr(obj, "__str__") or obj.__str__ is object.__str__) and (
-        not hasattr(obj, "__repr__") or obj.__repr__ is object.__repr__
-    ):
-        return obj.__class__.__name__
-
-    else:
-        return str(obj)
-
-
 def mandiant_indicator_as_json_str(indicator, skip_attr_map={}):
-    return json.dumps(
-        {
-            key: getattr(indicator, key)
-            for key in indicator.__dir__()
-            if (skip_attr_map.get(key, False) == False)
-            and (not key.startswith("_"))
-            and (not callable(getattr(indicator, key)))
-        },
-        default=mandiant_json_serializer,
-    )
+    if indicator and indicator._api_response:
+        return json.dumps(indicator._api_response)
+    else:
+        return 'unknown indicator'
 
 
 def map_mandiant_indicator_to_zeek(