diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index 29f4ffda3..9172904b5 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -54,6 +54,7 @@ from lib.core.enums import HTTPMETHOD
 from lib.core.enums import NULLCONNECTION
 from lib.core.enums import PAYLOAD
 from lib.core.enums import PLACE
+from lib.core.enums import REDIRECTION
 from lib.core.exception import SqlmapConnectionException
 from lib.core.exception import SqlmapNoneDataException
 from lib.core.exception import SqlmapSilentQuitException
@@ -1163,6 +1164,8 @@ def identifyWaf():
     def _(*args, **kwargs):
         page, headers, code = None, None, None
         try:
+            pushValue(kb.redirectChoice)
+            kb.redirectChoice = REDIRECTION.NO
             if kwargs.get("get"):
                 kwargs["get"] = urlencode(kwargs["get"])
             kwargs["raise404"] = False
@@ -1170,6 +1173,8 @@ def identifyWaf():
             page, headers, code = Request.getPage(*args, **kwargs)
         except Exception:
             pass
+        finally:
+            kb.redirectChoice = popValue()
         return page or "", headers or {}, code
 
     retVal = False
diff --git a/lib/core/enums.py b/lib/core/enums.py
index 80cab9474..848678487 100644
--- a/lib/core/enums.py
+++ b/lib/core/enums.py
@@ -166,6 +166,7 @@ class HTTP_HEADER:
     COOKIE = "Cookie"
     SET_COOKIE = "Set-Cookie"
     HOST = "Host"
+    LOCATION = "Location"
     PRAGMA = "Pragma"
     PROXY_AUTHORIZATION = "Proxy-Authorization"
     PROXY_CONNECTION = "Proxy-Connection"
diff --git a/waf/urlscan.py b/waf/urlscan.py
new file mode 100644
index 000000000..0e0fc8e3e
--- /dev/null
+++ b/waf/urlscan.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2014 sqlmap developers (http://sqlmap.org/)
+See the file 'doc/COPYING' for copying permission
+"""
+
+import re
+
+from lib.core.enums import HTTP_HEADER
+from lib.core.settings import WAF_ATTACK_VECTORS
+
+__product__ = "UrlScan (Microsoft)"
+
+def detect(get_page):
+    retval = False
+
+    for vector in WAF_ATTACK_VECTORS:
+        page, headers, code = get_page(get=vector)
+        retval = re.search(r"Rejected-By-UrlScan", headers.get(HTTP_HEADER.LOCATION, ""), re.I) is not None
+        if retval:
+            break
+
+    return retval