alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"Mozilla/5.0 (compatible|3b 20|Grendel-Scan"; nocase; http_user_agent; depth:37; fast_pattern; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type limit, track by_dst, count 1, seconds 60; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; classtype:attempted-recon; sid:2009480; rev:9; metadata:created_at 2010_07_30, updated_at 2020_10_14;)

Added 2020-10-14 20:54:42 UTC

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"Mozilla/5.0 (compatible|3b 20|Grendel-Scan"; nocase; http_user_agent; depth:37; fast_pattern; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type limit, track by_dst, count 1, seconds 60; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; classtype:attempted-recon; sid:2009480; rev:9; metadata:created_at 2010_07_30, updated_at 2019_10_11;)

Added 2019-10-11 19:56:30 UTC

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"User-Agent|3a| Mozilla/5.0 (compatible|3b| Grendel-Scan"; nocase; http_header; fast_pattern:37,12; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type limit, track by_dst, count 1, seconds 60; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; classtype:attempted-recon; sid:2009480; rev:8; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2018-09-13 19:40:39 UTC

Added 2018-09-13 17:54:17 UTC

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"User-Agent|3a| Mozilla/5.0 (compatible|3b| Grendel-Scan"; nocase; http_header; fast_pattern:37,12; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type limit, track by_dst, count 1, seconds 60; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; classtype:attempted-recon; sid:2009480; rev:8; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 21:02:37 UTC

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"User-Agent|3a| Mozilla/5.0 (compatible|3b| Grendel-Scan"; nocase; http_header; fast_pattern:37,12; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type limit, track by_dst, count 1, seconds 60; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; classtype:attempted-recon; sid:2009480; rev:8;)

Added 2014-08-27 17:48:58 UTC

alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"User-Agent|3a| Mozilla/5.0 (compatible|3b| Grendel-Scan"; fast_pattern:37,12; http_header; nocase; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type threshold, track by_dst, count 50, seconds 60; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; classtype:attempted-recon; sid:2009480; rev:8;)

Added 2011-12-19 18:45:34 UTC

alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"User-Agent|3a| Mozilla/5.0 (compatible|3b| Grendel-Scan"; http_header; nocase; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type threshold, track by_dst, count 50, seconds 60; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; classtype:attempted-recon; sid:2009480; rev:7;)

Added 2011-10-12 19:27:28 UTC

alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"User-Agent|3a| Mozilla/5.0 (compatible|3b| Grendel-Scan"; http_header; nocase; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type threshold, track by_dst, count 50, seconds 60; classtype:attempted-recon; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; sid:2009480; rev:7;)

Added 2011-09-14 22:40:50 UTC

alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"User-Agent|3a| Mozilla/5.0 (compatible|3b| Grendel-Scan"; http_header; nocase; content:"http|3a|//www.grendel-scan.com"; http_header; nocase; threshold: type threshold, track by_dst, count 50, seconds 60; classtype:attempted-recon; reference:url,www.grendel-scan.com; reference:url,doc.emergingthreats.net/2009480; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_Grendel; sid:2009480; rev:7;)

Added 2011-02-04 17:28:49 UTC

alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"|0d 0a|User-Agent\: Mozilla/5.0 (compatible\; Grendel-Scan"; nocase; content:"http\://www.grendel-scan.com"; offset:90; distance:1; depth:55; nocase; threshold: type threshold, track by_dst, count 50, seconds 60; reference:url,www.grendel-scan.com; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2009480; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_Grendel; sid:2009480; rev:2;)

Added 2009-07-01 20:03:01 UTC

alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"|0d 0a|User-Agent\: Mozilla/5.0 (compatible\; Grendel-Scan"; nocase; content:"http\://www.grendel-scan.com"; offset:90; distance:1; depth:55; nocase; threshold: type threshold, track by_dst, count 50, seconds 60; reference:url,www.grendel-scan.com; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2009480; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_Grendel; sid:2009480; rev:2;)

Added 2009-07-01 20:03:01 UTC

alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET SCAN Grendel Web Scan - Default User Agent Detected"; flow:to_server,established; content:"|0d 0a|User-Agent\: Mozilla/5.0 (compatible\; Grendel-Scan"; nocase; content:"http\://www.grendel-scan.com"; offset:90; distance:1; depth:55; nocase; threshold: type threshold, track by_dst, count 50, seconds 60; reference:url,www.grendel-scan.com; classtype:attempted-recon; sid:2009480; rev:1;)

Added 2009-07-01 10:45:35 UTC