diff --git a/etc/checksum/md5sum.md5 b/etc/checksum/md5sum.md5
index 118f904..d8044f3 100644
--- a/etc/checksum/md5sum.md5
+++ b/etc/checksum/md5sum.md5
@@ -1,4 +1,4 @@
-9874a6fea201b6c9a9105c61256c0335  ./zeus.py
+f75a6d23bd80e9861153c9c52dce15bd  ./zeus.py
 6ad5f22ec4a6f8324bfb1b01ab6d51ec  ./etc/scripts/cleanup.sh
 155c9482f690f1482f324a7ffd8b8098  ./etc/scripts/fix_pie.sh
 0e435c641bc636ac0b3d54e032d9cf6a  .etc/scripts/install_nmap.sh
@@ -32,20 +32,20 @@ c10fdf73c2b655e07d13ac8103bd321e  ./lib/tamper_scripts/space2null_encode.py
 3b8c95a6a3b7cecce5118f2fb1ccc6b8  ./lib/tamper_scripts/appendnull_encode.py
 d41d8cd98f00b204e9800998ecf8427e  ./lib/__init__.py
 d41d8cd98f00b204e9800998ecf8427e  ./lib/attacks/__init__.py
-a48dc0484668393bece144e102273e99  ./lib/attacks/sqlmap_scan/__init__.py
+d93cf7cdeabe951251f2f4d56687b5f4  ./lib/attacks/sqlmap_scan/__init__.py
 5e5bb575014ebe613db6bf671d008cf8  ./lib/attacks/sqlmap_scan/sqlmap_opts.py
 d41d8cd98f00b204e9800998ecf8427e  ./lib/attacks/whois_lookup/__init__.py
 f27322b9716e1a2b0b0b0487f3149474  ./lib/attacks/whois_lookup/whois.py
 2782c48ef762413f0e7ce7392786ce2d  ./lib/attacks/admin_panel_finder/__init__.py
 23c1e5e934029f9acc89d2c95e7748e7  ./lib/attacks/xss_scan/__init__.py
-f5e10264d98d8c59b3d5ae86051bbcf2  ./lib/attacks/nmap_scan/__init__.py
+27358f26bda30d7356143c3ea1fa99c5  ./lib/attacks/nmap_scan/__init__.py
 216999fa0e84866d5c1d96d5676034e4  ./lib/attacks/nmap_scan/nmap_opts.py
 c5ebb0c56c9ae3b9a72a14e3f05afa16  ./lib/attacks/intel_me/__init__.py
 1faa2b5dfad6eb538bbfe42942d2a9da  ./lib/core/errors.py
 d41d8cd98f00b204e9800998ecf8427e  ./lib/core/__init__.py
-5e744093802861aa8548c29847fd3dbf  ./lib/core/settings.py
+95f45565a70e223e091ff306464c9888  ./lib/core/settings.py
 d41d8cd98f00b204e9800998ecf8427e  ./var/google_search/__init__.py
-b8761604c5d4f88ae653526057491a5f  ./var/google_search/search.py
+6fe42683a339115709c32562b305f116  ./var/google_search/search.py
 d41d8cd98f00b204e9800998ecf8427e  ./var/__init__.py
 d41d8cd98f00b204e9800998ecf8427e  ./var/auto_issue/__init__.py
 4506850a02aa18e12bef4efeb760ad9e  ./var/auto_issue/github.py
diff --git a/lib/attacks/nmap_scan/__init__.py b/lib/attacks/nmap_scan/__init__.py
index 8fb2370..3f34721 100644
--- a/lib/attacks/nmap_scan/__init__.py
+++ b/lib/attacks/nmap_scan/__init__.py
@@ -1,6 +1,7 @@
 import json
 import os
 import socket
+import shlex
 import subprocess
 
 import nmap
@@ -140,7 +141,8 @@ def perform_port_scan(url, scanner=NmapHook, verbose=False, opts=None, **kwargs)
             "would you like to automatically install it", opts="yN"
         )
         if question.lower().startswith("y"):
-            subprocess.call(["sudo",  "sh", "{}".format(lib.core.settings.NMAP_INSTALLER_TOOL)])
+            install_nmap_command = shlex.split("sudo sh {}".format(lib.core.settings.NMAP_INSTALLER_TOOL))
+            subprocess.call(install_nmap_command)
             lib.core.settings.logger.info(lib.core.settings.set_color(
                 "nmap has been successfully installed, re-running..."
             ))
diff --git a/lib/attacks/sqlmap_scan/__init__.py b/lib/attacks/sqlmap_scan/__init__.py
index 4ecc12d..dd6f9b0 100644
--- a/lib/attacks/sqlmap_scan/__init__.py
+++ b/lib/attacks/sqlmap_scan/__init__.py
@@ -1,6 +1,7 @@
 import json
 import re
 import subprocess
+import shlex
 
 try:
     import urllib2  # python 2
@@ -140,10 +141,10 @@ def sqlmap_scan_main(url, port=None, verbose=None, opts=None, auto_start=False):
         lib.core.settings.logger.info(lib.core.settings.set_color(
             "attempting to launch sqlmap API..."
         ))
-        subprocess.Popen(
-            ["sudo", "sh", "{}".format(lib.core.settings.LAUNCH_SQLMAP_API_TOOL), "p", "{}".format("".join(found_path))],
-            stdout=subprocess.PIPE
-        )
+        sqlmap_api_command = shlex.split("sudo sh {} p {}".format(
+            lib.core.settings.LAUNCH_SQLMAP_API_TOOL, "".join(found_path)
+        ))
+        subprocess.Popen(sqlmap_api_command, stdout=subprocess.PIPE)
         if is_started:
             lib.core.settings.logger.info(lib.core.settings.set_color(
                 "sqlmap API is up and running, continuing process..."
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 797a7e7..d153aed 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -5,6 +5,7 @@ import sys
 import glob
 import json
 import time
+import shlex
 import difflib
 import logging
 import string
@@ -482,15 +483,16 @@ def get_browser_version():
         "attempting to get firefox browser version..."
     ))
     try:
-        output = subprocess.check_output(['firefox', '--version'])
-    except Exception:
+        firefox_version_command = shlex.split("firefox --version")
+        output = subprocess.check_output(firefox_version_command)
+    except (OSError, Exception):
         logger.error(set_color(
             "failed to run firefox...", level=50
         ))
         return "failed to start"
     try:
         major, minor = map(int, re.search(r"(\d+).(\d+)", output).groups())
-    except Exception:
+    except (ValueError, Exception):
         logger.error(set_color(
             "failed to parse '{}' for version number...".format(output), level=50
         ))
diff --git a/var/google_search/search.py b/var/google_search/search.py
index b7ab79c..ed7a245 100644
--- a/var/google_search/search.py
+++ b/var/google_search/search.py
@@ -1,6 +1,7 @@
 import os
 import re
 import time
+import shlex
 import subprocess
 
 try:
@@ -288,7 +289,8 @@ def parse_search_results(
                 logger.warning(set_color(
                     "this will kill all instances of the firefox web browser...", level=30
                 ))
-                subprocess.call(["sudo", "sh", CLEANUP_TOOL_PATH])
+                auto_clean_command = shlex.split("sudo sh {}".format(CLEANUP_TOOL_PATH))
+                subprocess.call(auto_clean_command)
                 logger.info(set_color(
                     "all open sessions of firefox killed, it should be safe to re-run "
                     "Zeus..."
@@ -307,7 +309,8 @@ def parse_search_results(
                 logger.info(set_color(
                     "attempting to reinstall failing dependency..."
                 ))
-                subprocess.call(["sudo", "sh", FIX_PROGRAM_INSTALL_PATH])
+                do_fix_command = shlex.split("sudo sh {}".format(FIX_PROGRAM_INSTALL_PATH))
+                subprocess.call(do_fix_command)
                 logger.info(set_color(
                     "successfully installed, you should be good to re-run Zeus..."
                 ))
diff --git a/zeus.py b/zeus.py
old mode 100755
new mode 100644
index d60d4bb..8657400
--- a/zeus.py
+++ b/zeus.py
@@ -2,6 +2,7 @@
 
 import optparse
 import os
+import shlex
 import subprocess
 import time
 
@@ -510,7 +511,7 @@ if __name__ == "__main__":
             else:
                 if URL_QUERY_REGEX.match(opt.spiderWebSite):
                     is_sure = prompt(
-                        "it is recomened to not use a URL that has a GET(query) parameter in it, "
+                        "it is recommended to not use a URL that has a GET(query) parameter in it, "
                         "would you like to continue", "yN"
                     )
                     if is_sure.lower().startswith("y"):
@@ -532,7 +533,8 @@ if __name__ == "__main__":
                 "failed to provide a mandatory argument, you will be redirected to the help menu...", level=50
             ))
             time.sleep(2)
-            subprocess.call("python zeus.py --help", shell=True)
+            zeus_help_menu_command = shlex.split("python zeus.py --help")
+            subprocess.call(zeus_help_menu_command)
     except IOError as e:
         if "Invalid URL" in str(e):
             logger.exception(set_color(