#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"User-Agent|3a| "; nocase; http_header; content:"msnbot"; nocase; http_header; fast_pattern; threshold: type both, track by_src, count 10, seconds 60; reference:url,search.msn.com/msnbot.htm; reference:url,doc.emergingthreats.net/2002831; classtype:attempted-recon; sid:2002831; rev:7;)

Added 2011-10-12 19:12:21 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"User-Agent|3a| "; nocase; http_header; content:"msnbot"; nocase; http_header; fast_pattern; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; reference:url,doc.emergingthreats.net/2002831; sid:2002831; rev:7;)

Added 2011-09-14 22:25:16 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"User-Agent|3a| "; nocase; http_header; content:"msnbot"; nocase; http_header; fast_pattern; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; reference:url,doc.emergingthreats.net/2002831; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Web_Crawling; sid:2002831; rev:7;)

Added 2011-02-04 17:22:04 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"|0d 0a|User-Agent\: "; content:"msnbot"; nocase; within:30; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; reference:url,doc.emergingthreats.net/2002831; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Web_Crawling; sid:2002831; rev:5;)

Added 2010-03-08 13:53:45 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"|0d 0a|User-Agent\: "; content:"msnbot"; nocase; within:30; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; reference:url,doc.emergingthreats.net/2002831; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Web_Crawling; sid:2002831; rev:5;)

Added 2010-03-08 13:53:45 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"msnbot"; nocase; pcre:"/User-Agent\:[^\n]+msnbot/i"; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; reference:url,doc.emergingthreats.net/2002831; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Web_Crawling; sid:2002831; rev:4;)

Added 2009-02-11 19:24:43 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"msnbot"; nocase; pcre:"/User-Agent\:[^\n]+msnbot/i"; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; reference:url,doc.emergingthreats.net/2002831; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Web_Crawling; sid:2002831; rev:4;)

Added 2009-02-11 19:24:43 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"msnbot"; nocase; pcre:"/User-Agent\:[^\n]+msnbot/i"; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; sid:2002831; rev:3;)

Added 2008-01-31 18:48:10 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"ET POLICY Msnbot Crawl"; flow:established,to_server; content:"msnbot"; nocase; pcre:"/User-Agent\:[^\n]+msnbot/i"; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; sid:2002831; rev:3;)

Added 2008-01-31 18:48:10 UTC

#alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"BLEEDING-EDGE POLICY Msnbot Crawl"; flow:established,to_server; content:"msnbot"; nocase; pcre:"/User-Agent\:[^\n]+msnbot/i"; threshold: type both, track by_src, count 10, seconds 60; classtype: attempted-recon; reference:url,search.msn.com/msnbot.htm; sid:2002831; rev:2;)