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2008064
(2008-03-28,
MattJonkman
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<h2> #alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"|0d 0a|Server|3a| nginx|0d 0a|"; nocase; threshold:type limit, seconds 60, count 3, track by_src; reference:url,doc.emergingthreats.net/2008064; classtype:bad-unknown; sid:2008064; rev:6; metadata:created_at 2010_07_30, updated_at 2010_07_30;) </h2> Added 2018-09-13 19:39:38 UTC %COMMENT{type="threadmode" default="Please enter documentation, comments, false positives, or concerns with this signature. Press the Attach button below to add samples or Pcaps." button="Add to Documentation" }% <hr> <h2> </h2> Added 2018-09-13 17:53:44 UTC <hr> <h2> #alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"|0d 0a|Server|3a| nginx|0d 0a|"; nocase; threshold:type limit, seconds 60, count 3, track by_src; reference:url,doc.emergingthreats.net/2008064; classtype:bad-unknown; sid:2008064; rev:6; metadata:created_at 2010_07_30, updated_at 2010_07_30;) </h2> Added 2017-08-07 21:01:16 UTC <hr> <h2> ##alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET DELETED Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"Server|3a| nginx|0d 0a|"; nocase; http_header; threshold:type limit, seconds 60, count 3, track by_src; reference:url,doc.emergingthreats.net/2008064; classtype:bad-unknown; sid:2008064; rev:5;) </h2> Added 2012-11-28 18:14:34 UTC <hr> <h2> #alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"Server|3a| nginx|0d 0a|"; nocase; http_header; threshold:type limit, seconds 60, count 3, track by_src; reference:url,doc.emergingthreats.net/2008064; classtype:bad-unknown; sid:2008064; rev:4;) </h2> Added 2011-10-12 19:24:22 UTC <hr> <h2> #alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"Server|3a| nginx|0d 0a|"; nocase; http_header; threshold:type limit, seconds 60, count 3, track by_src; classtype:bad-unknown; reference:url,doc.emergingthreats.net/2008064; sid:2008064; rev:4;) </h2> Added 2011-09-14 22:37:51 UTC <hr> <h2> #alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"Server|3a| nginx|0d 0a|"; nocase; http_header; threshold:type limit, seconds 60, count 3, track by_src; classtype:bad-unknown; reference:url,doc.emergingthreats.net/2008064; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Nginx; sid:2008064; rev:4;) </h2> Added 2011-02-04 17:27:10 UTC <hr> <h2> #alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"HTTP/1."; depth:7; content:"|0d 0a|Server\: nginx|0d 0a|"; nocase; distance:4; within:300; threshold:type limit, seconds 60, count 3, track by_src; classtype:bad-unknown; reference:url,doc.emergingthreats.net/2008064; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Nginx; sid:2008064; rev:2;) </h2> Added 2009-02-11 19:15:23 UTC <hr> <h2> #alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"HTTP/1."; depth:7; content:"|0d 0a|Server\: nginx|0d 0a|"; nocase; distance:4; within:300; threshold:type limit, seconds 60, count 3, track by_src; classtype:bad-unknown; reference:url,doc.emergingthreats.net/2008064; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Nginx; sid:2008064; rev:2;) </h2> Added 2009-02-11 19:15:23 UTC <hr> <h2> #alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"HTTP/1."; depth:7; content:"|0d 0a|Server\: nginx|0d 0a|"; nocase; distance:4; within:300; threshold:type limit, seconds 60, count 3, track by_src; classtype:bad-unknown; sid:2008064; rev:1;) </h2> Added 2008-04-01 11:35:15 UTC <hr> <h2> #alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"HTTP/1."; depth:7; content:"|0d 0a|Server\: nginx|0d 0a|"; nocase; distance:4; within:300; threshold:type limit, seconds 60, count 3, track by_src; classtype:bad-unknown; sid:2008064; rev:1;) </h2> Added 2008-04-01 11:35:15 UTC <hr> <h2> alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET POLICY Nginx Server with no version string - Often Hostile Traffic"; flow:established,from_server; content:"HTTP/1."; depth:7; content:"|0d 0a|Server\: nginx|0d 0a|"; nocase; distance:4; within:300; threshold:type limit, seconds 60, count 3, track by_src; classtype:bad-unknown; sid:2008064; rev:1;) </h2> Added 2008-03-28 13:33:34 UTC Often hostile. But not always. Many malware uses of nginx have the version string stripped. -- Main.MattJonkman - 28 Mar 2008 <hr>
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Topic revision: r2 - 2008-03-28
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MattJonkman
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