diff --git a/waf/isaserver.py b/waf/isaserver.py
new file mode 100644
index 000000000..6d7369a48
--- /dev/null
+++ b/waf/isaserver.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2013 sqlmap developers (http://sqlmap.org/)
+See the file 'doc/COPYING' for copying permission
+"""
+
+import re
+
+from lib.core.common import randomInt
+from lib.core.enums import HTTPHEADER
+
+__product__ = "ISA Server (Microsoft)"
+
+def detect(get_page):
+    page, headers, code = get_page(host=randomInt(6))
+    return "The server denied the specified Uniform Resource Locator (URL). Contact the server administrator" in page