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<h2> #alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"Zilla"; http_user_agent; depth:5; isdataat:!1,relative; threshold:type limit,count 2,track by_src,seconds 300; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:9; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, former_category HUNTING, signature_severity Major, tag User_Agent, updated_at 2020_10_16;) </h2> Added 2020-10-16 18:22:56 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> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"Zilla"; http_user_agent; depth:5; isdataat:!1,relative; threshold:type limit,count 2,track by_src,seconds 300; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:9; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, former_category HUNTING, signature_severity Major, tag User_Agent, updated_at 2019_10_11;) </h2> Added 2020-08-05 19:05:19 UTC <hr> <h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"Zilla"; http_user_agent; depth:5; isdataat:!1,relative; threshold:type limit,count 2,track by_src,seconds 300; metadata: former_category HUNTING; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:9; metadata:affected_product Any, attack_target Client_Endpoint, deployment Perimeter, tag User_Agent, signature_severity Major, created_at 2010_07_30, updated_at 2019_10_11;) </h2> Added 2019-10-11 19:56:26 UTC <hr> <h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"User-Agent|3a| Zilla|0d 0a|"; http_header; threshold:type limit,count 2,track by_src,seconds 300; metadata: former_category HUNTING; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:8; metadata:affected_product Any, attack_target Client_Endpoint, deployment Perimeter, tag User_Agent, signature_severity Major, created_at 2010_07_30, updated_at 2017_10_30;) </h2> Added 2019-10-09 19:08:42 UTC <hr> <h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"User-Agent|3a| Zilla|0d 0a|"; http_header; threshold:type limit,count 2,track by_src,seconds 300; metadata: former_category TROJAN; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:8; metadata:affected_product Any, attack_target Client_Endpoint, deployment Perimeter, tag User_Agent, signature_severity Major, created_at 2010_07_30, updated_at 2017_10_30;) </h2> Added 2017-10-30 18:17:32 UTC <hr> <h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"User-Agent|3a| Zilla|0d 0a|"; http_header; threshold:type limit,count 2,track by_src,seconds 300; metadata: former_category TROJAN; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:8; metadata:affected_product Any, attack_target Client_Endpoint, deployment Perimeter, tag User_Agent, signature_severity Major, created_at 2010_07_30, updated_at 2017_10_30;) </h2> Added 2017-10-30 16:39:40 UTC <hr> <h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"User-Agent|3a| Zilla|0d 0a|"; http_header; threshold:type limit,count 2,track by_src,seconds 300; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:7; metadata:affected_product Any, attack_target Client_Endpoint, deployment Perimeter, tag User_Agent, signature_severity Major, created_at 2010_07_30, updated_at 2016_07_01;) </h2> Added 2017-08-07 21:01:26 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"User-Agent|3a| Zilla|0d 0a|"; http_header; threshold:type limit,count 2,track by_src,seconds 300; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; classtype:trojan-activity; sid:2008266; rev:8;) </h2> Added 2011-10-12 19:24:47 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"User-Agent|3a| Zilla|0d 0a|"; http_header; threshold:type limit,count 2,track by_src,seconds 300; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; sid:2008266; rev:8;) </h2> Added 2011-09-14 22:38:14 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"User-Agent|3a| Zilla|0d 0a|"; http_header; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2008266; rev:7;) </h2> Added 2011-02-04 17:27:22 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Zilla|0d 0a|"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2008266; rev:4;) </h2> Added 2009-10-19 09:15:44 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Zilla|0d 0a|"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2008266; rev:4;) </h2> Added 2009-10-19 09:15:44 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Zilla|0d 0a|"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/bin/view/Main/2008266; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_USER_Agents; sid:2008266; rev:2;) </h2> Added 2009-02-09 22:22:08 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious User-Agent (Zilla)"; flow:to_server,established; content:"|0d 0a|User-Agent\: Zilla|0d 0a|"; classtype:trojan-activity; sid:2008266; rev:1;) </h2> Added 2008-05-29 11:04:02 UTC <hr>
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Topic revision: r1 - 2020-10-16
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