diff --git a/monkey/infection_monkey/dropper.py b/monkey/infection_monkey/dropper.py
index 3d34688ef..3b7bba818 100644
--- a/monkey/infection_monkey/dropper.py
+++ b/monkey/infection_monkey/dropper.py
@@ -4,6 +4,7 @@ import filecmp
 import logging
 import os
 import pprint
+import shlex
 import shutil
 import subprocess
 import sys
@@ -164,9 +165,10 @@ class MonkeyDrops(object):
                 "monkey_commandline": inner_monkey_cmdline,
             }
 
+        monkey_cmdline_split = shlex.split(monkey_cmdline)
+
         monkey_process = subprocess.Popen(
-            monkey_cmdline,
-            shell=True,
+            monkey_cmdline_split,
             stdin=subprocess.PIPE,
             stdout=subprocess.PIPE,
             stderr=subprocess.PIPE,
diff --git a/monkey/infection_monkey/system_info/windows_info_collector.py b/monkey/infection_monkey/system_info/windows_info_collector.py
index f978a9942..cc46aae93 100644
--- a/monkey/infection_monkey/system_info/windows_info_collector.py
+++ b/monkey/infection_monkey/system_info/windows_info_collector.py
@@ -1,4 +1,5 @@
 import logging
+import shlex
 import subprocess
 import sys
 
@@ -51,10 +52,10 @@ class WindowsInfoCollector(InfoCollector):
     def get_installed_packages(self):
         LOG.info("Getting installed packages")
 
-        packages = subprocess.check_output("dism /online /get-packages", shell=True)
+        packages = subprocess.check_output(shlex.split("dism /online /get-packages"))
         self.info["installed_packages"] = packages.decode("utf-8", errors="ignore")
 
-        features = subprocess.check_output("dism /online /get-features", shell=True)
+        features = subprocess.check_output(shlex.split("dism /online /get-features"))
         self.info["installed_features"] = features.decode("utf-8", errors="ignore")
 
         LOG.debug("Got installed packages")
diff --git a/monkey/infection_monkey/utils/windows/users.py b/monkey/infection_monkey/utils/windows/users.py
index d27b74547..06e626783 100644
--- a/monkey/infection_monkey/utils/windows/users.py
+++ b/monkey/infection_monkey/utils/windows/users.py
@@ -39,7 +39,7 @@ class AutoNewWindowsUser(AutoNewUser):
 
         windows_cmds = get_windows_commands_to_add_user(self.username, self.password, True)
         logger.debug("Trying to add {} with commands {}".format(self.username, str(windows_cmds)))
-        _ = subprocess.check_output(windows_cmds, stderr=subprocess.STDOUT, shell=True)
+        _ = subprocess.check_output(windows_cmds, stderr=subprocess.STDOUT)
 
     def __enter__(self):
         # Importing these only on windows, as they won't exist on linux.
@@ -127,9 +127,7 @@ class AutoNewWindowsUser(AutoNewUser):
                     self.username, str(commands_to_deactivate_user)
                 )
             )
-            _ = subprocess.check_output(
-                commands_to_deactivate_user, stderr=subprocess.STDOUT, shell=True
-            )
+            _ = subprocess.check_output(commands_to_deactivate_user, stderr=subprocess.STDOUT)
         except Exception as err:
             raise NewUserError("Can't deactivate user {}. Info: {}".format(self.username, err))
 
@@ -141,8 +139,6 @@ class AutoNewWindowsUser(AutoNewUser):
                     self.username, str(commands_to_delete_user)
                 )
             )
-            _ = subprocess.check_output(
-                commands_to_delete_user, stderr=subprocess.STDOUT, shell=True
-            )
+            _ = subprocess.check_output(commands_to_delete_user, stderr=subprocess.STDOUT)
         except Exception as err:
             raise NewUserError("Can't delete user {}. Info: {}".format(self.username, err))
diff --git a/monkey/infection_monkey/windows_upgrader.py b/monkey/infection_monkey/windows_upgrader.py
index cea71a326..8739ae556 100644
--- a/monkey/infection_monkey/windows_upgrader.py
+++ b/monkey/infection_monkey/windows_upgrader.py
@@ -1,4 +1,5 @@
 import logging
+import shlex
 import shutil
 import subprocess
 import sys
@@ -50,9 +51,10 @@ class WindowsUpgrader(object):
             + monkey_options
         )
 
+        monkey_cmdline_split = shlex.split(monkey_cmdline)
+
         monkey_process = subprocess.Popen(
-            monkey_cmdline,
-            shell=True,
+            monkey_cmdline_split,
             stdin=None,
             stdout=None,
             stderr=None,