diff --git a/monkey/common/network/network_range.py b/monkey/common/network/network_range.py
index 60178a3dc..21a1fa83b 100644
--- a/monkey/common/network/network_range.py
+++ b/monkey/common/network/network_range.py
@@ -151,10 +151,10 @@ class SingleIpRange(NetworkRange):
         return self._ip_address
 
     @staticmethod
-    def string_to_host(string):
+    def string_to_host(string_):
         """
         Converts the string that user entered in "Scan IP/subnet list" to a tuple of domain name and ip
-        :param string: String that was entered in "Scan IP/subnet list"
+        :param string_: String that was entered in "Scan IP/subnet list"
         :return: A tuple in format (IP, domain_name). Eg. (192.168.55.1, www.google.com)
         """
         # The most common use case is to enter ip/range into "Scan IP/subnet list"
@@ -162,16 +162,16 @@ class SingleIpRange(NetworkRange):
 
         # Try casting user's input as IP
         try:
-            ip = ipaddress.ip_address(string).exploded
+            ip = ipaddress.ip_address(string_).exploded
         except ValueError:
             # Exception means that it's a domain name
             try:
-                ip = socket.gethostbyname(string)
-                domain_name = string
+                ip = socket.gethostbyname(string_)
+                domain_name = string_
             except socket.error:
                 LOG.error("Your specified host: {} is not found as a domain name and"
-                          " it's not an IP address".format(string))
-                return None, string
-        # If a string was entered instead of IP we presume that it was domain name and translate it
+                          " it's not an IP address".format(string_))
+                return None, string_
+        # If a string_ was entered instead of IP we presume that it was domain name and translate it
         return ip, domain_name
 
diff --git a/monkey/infection_monkey/exploit/sambacry.py b/monkey/infection_monkey/exploit/sambacry.py
index 16366c586..e48a21616 100644
--- a/monkey/infection_monkey/exploit/sambacry.py
+++ b/monkey/infection_monkey/exploit/sambacry.py
@@ -217,6 +217,7 @@ class SambaCryExploiter(HostExploiter):
         pattern = re.compile(r'\d*\.\d*\.\d*')
         smb_server_name = self.host.services[SMB_SERVICE].get('name')
         if not smb_server_name:
+            LOG.info("Host: %s refused SMB connection" % self.host.ip_addr)
             return False
         samba_version = "unknown"
         pattern_result = pattern.search(smb_server_name)
diff --git a/monkey/infection_monkey/system_info/windows_info_collector.py b/monkey/infection_monkey/system_info/windows_info_collector.py
index 9d6f6a1f2..08ca6ff29 100644
--- a/monkey/infection_monkey/system_info/windows_info_collector.py
+++ b/monkey/infection_monkey/system_info/windows_info_collector.py
@@ -1,6 +1,7 @@
 import os
 import logging
 import sys
+sys.coinit_flags = 0  # needed for proper destruction of the wmi python module
 
 import infection_monkey.config
 from infection_monkey.system_info.mimikatz_collector import MimikatzCollector
@@ -8,9 +9,6 @@ from infection_monkey.system_info import InfoCollector
 from infection_monkey.system_info.wmi_consts import WMI_CLASSES
 from common.utils.wmi_utils import WMIUtils
 
-
-sys.coinit_flags = 0  # needed for proper destruction of the wmi python module
-
 LOG = logging.getLogger(__name__)
 LOG.info('started windows info collector')
 
diff --git a/monkey/monkey_island/cc/models/monkey.py b/monkey/monkey_island/cc/models/monkey.py
index fe0745496..324903809 100644
--- a/monkey/monkey_island/cc/models/monkey.py
+++ b/monkey/monkey_island/cc/models/monkey.py
@@ -48,7 +48,7 @@ class Monkey(Document):
     @staticmethod
     def __ring_key__():
         """
-        Cash key representation
+        Cache key representation
         https://ring-cache.readthedocs.io/en/stable/quickstart.html#method-classmethod-staticmethod-property
         :return:
         """
diff --git a/monkey/monkey_island/cc/services/config_schema.py b/monkey/monkey_island/cc/services/config_schema.py
index 3318783b0..32ee13b12 100644
--- a/monkey/monkey_island/cc/services/config_schema.py
+++ b/monkey/monkey_island/cc/services/config_schema.py
@@ -1,4 +1,4 @@
-WARNING_SIGN = " \\u26A0"
+WARNING_SIGN = " \u26A0"
 
 SCHEMA = {
     "title": "Monkey",
diff --git a/monkey/monkey_island/cc/services/edge.py b/monkey/monkey_island/cc/services/edge.py
index a2023d4d2..ae3d2a2de 100644
--- a/monkey/monkey_island/cc/services/edge.py
+++ b/monkey/monkey_island/cc/services/edge.py
@@ -155,7 +155,7 @@ class EdgeService:
             else:
                 to_label = NodeService.get_node_label(NodeService.get_node_by_id(to_id))
 
-        RIGHT_ARROW = "\\u2192"
+        RIGHT_ARROW = "\u2192"
         return "%s %s %s" % (from_label, RIGHT_ARROW, to_label)