diff --git a/monkey/infection_monkey/exploit/mssqlexec.py b/monkey/infection_monkey/exploit/mssqlexec.py
index c30a3c1ad..5c531054e 100644
--- a/monkey/infection_monkey/exploit/mssqlexec.py
+++ b/monkey/infection_monkey/exploit/mssqlexec.py
@@ -1,6 +1,7 @@
 import logging
 from pathlib import PureWindowsPath
 from time import sleep
+from typing import Sequence, Tuple
 
 import pymssql
 
@@ -84,7 +85,9 @@ class MSSQLExploiter(HostExploiter):
         self.exploit_result.propagation_success = True
         return self.exploit_result
 
-    def _brute_force(self, host, port, users_passwords_pairs_list):
+    def _brute_force(
+        self, host: str, port: str, users_passwords_pairs_list: Sequence[Tuple[str, str]]
+    ) -> pymssql.Cursor:
         """
         Starts the brute force connection attempts and if needed then init the payload process.
         Main loop starts here.
@@ -181,11 +184,11 @@ class MSSQLExploiter(HostExploiter):
         self._write_agent_launch_command_to_batch_file(agent_path_on_victim)
         self.run_payload_file()
 
-    def _write_agent_launch_command_to_batch_file(self, agent_path_on_victim):
+    def _write_agent_launch_command_to_batch_file(self, agent_path_on_victim: PureWindowsPath):
         agent_launch_command = self._build_agent_launch_command(agent_path_on_victim)
         self._write_command_to_batch_file(agent_launch_command)
 
-    def _build_agent_launch_command(self, agent_path_on_victim: PureWindowsPath):
+    def _build_agent_launch_command(self, agent_path_on_victim: PureWindowsPath) -> str:
         agent_args = build_monkey_commandline(
             self.host, self.current_depth - 1, agent_path_on_victim
         )
@@ -203,6 +206,6 @@ class MSSQLExploiter(HostExploiter):
         return http_thread
 
     @staticmethod
-    def _stop_agent_server(http_thread):
+    def _stop_agent_server(http_thread: LockedHTTPServer):
         http_thread.stop()
         http_thread.join(LONG_REQUEST_TIMEOUT)