diff --git a/monkey/infection_monkey/post_breach/actions/modify_shell_startup_files.py b/monkey/infection_monkey/post_breach/actions/modify_shell_startup_files.py
index 932007252..5e8208c96 100644
--- a/monkey/infection_monkey/post_breach/actions/modify_shell_startup_files.py
+++ b/monkey/infection_monkey/post_breach/actions/modify_shell_startup_files.py
@@ -53,7 +53,9 @@ class ModifyShellStartupFiles(PBA):
             def run(self):
                 if self.command:
                     try:
-                        output = subprocess.check_output(self.command, stderr=subprocess.STDOUT, shell=True).decode()
+                        output = subprocess.check_output(self.command,  # noqa: DUO116
+                                                         stderr=subprocess.STDOUT,
+                                                         shell=True).decode()
                         return output, True
                     except subprocess.CalledProcessError as e:
                         # Return error output of the command
diff --git a/monkey/monkey_island/cc/services/attack/technique_reports/T1156.py b/monkey/monkey_island/cc/services/attack/technique_reports/T1156.py
index a379c3907..a9c0ea338 100644
--- a/monkey/monkey_island/cc/services/attack/technique_reports/T1156.py
+++ b/monkey/monkey_island/cc/services/attack/technique_reports/T1156.py
@@ -20,8 +20,8 @@ class T1156(AttackTechnique):
                                        'ips': [{'$arrayElemAt': ['$data.ip', 0]}]},
                            'result': '$data.result'}},
              {'$unwind': '$result'},
-             {'$match': {'$or': [{'result': {'$regex': '\.bash'}},
-                                 {'result': {'$regex': '\.profile'}}]}}]
+             {'$match': {'$or': [{'result': {'$regex': '\.bash'}},  # noqa: W605
+                                 {'result': {'$regex': '\.profile'}}]}}]  # noqa: W605
 
     @staticmethod
     def get_report_data():
diff --git a/monkey/monkey_island/cc/services/attack/technique_reports/T1504.py b/monkey/monkey_island/cc/services/attack/technique_reports/T1504.py
index b1013085e..7bfda1d8e 100644
--- a/monkey/monkey_island/cc/services/attack/technique_reports/T1504.py
+++ b/monkey/monkey_island/cc/services/attack/technique_reports/T1504.py
@@ -20,7 +20,7 @@ class T1504(AttackTechnique):
                                        'ips': [{'$arrayElemAt': ['$data.ip', 0]}]},
                            'result': '$data.result'}},
              {'$unwind': '$result'},
-             {'$match': {'result': {'$regex': 'profile\.ps1'}}}]
+             {'$match': {'result': {'$regex': 'profile\.ps1'}}}]  # noqa: W605
 
     @staticmethod
     def get_report_data():
diff --git a/monkey/monkey_island/cc/services/attack/technique_reports/technique_report_tools.py b/monkey/monkey_island/cc/services/attack/technique_reports/technique_report_tools.py
index 44b2fdd82..80bfb952d 100644
--- a/monkey/monkey_island/cc/services/attack/technique_reports/technique_report_tools.py
+++ b/monkey/monkey_island/cc/services/attack/technique_reports/technique_report_tools.py
@@ -1,4 +1,3 @@
-from common.utils.attack_utils import ScanStatus
 from monkey_island.cc.encryptor import encryptor