poisoners/DHCP.py

@@ -240,9 +240,8 @@ def ParseSrcDSTAddr(data):
 
 def FindIP(data):
     IPPos = data.find(b"\x32\x04") + 2
-    if IPPos == -1 or IPPos + 4 >= len(data) or IPPos == 1:
-        #Probably not present in the DHCP options we received, let's grab it from the IP header instead
-        return data[12:16]
+    if IPPos == -1 or IPPos + 4 >= len(data):
+        return None
     else:
         IP = data[IPPos:IPPos+4]
         return IP

utils.py

@@ -485,13 +485,21 @@ def banner():
 	])
 
 	print(banner)
+	print("\n           \033[1;33mNBT-NS, LLMNR & MDNS %s\033[0m" % settings.__version__)
+	print('')
+	print("  To support this project:")
+	print("  Github -> https://github.com/sponsors/lgandx")
+	print("  Paypal  -> https://paypal.me/PythonResponder")
+	print('')
+	print("  Author: Laurent Gaffie (laurent.gaffie@gmail.com)")
+	print("  To kill this script hit CTRL-C")
 	print('')
 
 
 def StartupMessage():
 	enabled  = color('[ON]', 2, 1) 
 	disabled = color('[OFF]', 1, 1)
-	print(color("[*] ", 2, 1)+"Sponsor Responder: https://paypal.me/PythonResponder")
+
 	print('')
 	print(color("[+] ", 2, 1) + "Poisoners:")
 	print('    %-27s' % "LLMNR" + (enabled if (settings.Config.AnalyzeMode == False and settings.Config.LLMNR_On_Off) else disabled))
@@ -572,7 +580,3 @@ def StartupMessage():
 	print('    %-27s' % "Responder Domain Name" + color('[%s]' % settings.Config.DomainName, 5, 1))
 	print('    %-27s' % "Responder DCE-RPC Port " + color('[%s]' % settings.Config.RPCPort, 5, 1))
 
-	#credits
-	print('')
-	print(color("[*] ", 2, 1)+"Version: "+settings.__version__)
-	print(color("[*] ", 2, 1)+"Author: Laurent Gaffie, <lgaffie@secorizon.com>")