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2018419
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<h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN W32/Zbot.InfoStealer WindowsUpdate Connectivity Check With Opera UA"; flow:established,to_server; content:"GET"; http_method; urilen:1; content:"Opera/9.25 (Windows NT 6.0|3b 20|U|3b|"; http_user_agent; fast_pattern; depth:30; content:"Host|3a 20|windowsupdate.microsoft.com"; http_header; content:"Connection|3a 20|Close"; http_header; content:!"Referer|3a|"; http_header; content:!"Accept"; http_header; reference:md5,aa696180cd0369e264ed8e9137a4f254; classtype:trojan-activity; sid:2018419; rev:7; metadata:created_at 2014_04_24, updated_at 2020_04_30;) </h2> Added 2020-04-30 19:21:20 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 TROJAN W32/Zbot.InfoStealer WindowsUpdate Connectivity Check With Opera UA"; flow:established,to_server; content:"GET"; http_method; urilen:1; content:"Opera/9.25 (Windows NT 6.0|3b 20|U|3b|"; http_user_agent; fast_pattern; depth:30; content:"Host|3a 20|windowsupdate.microsoft.com"; http_header; content:"Connection|3a 20|Close"; http_header; content:!"Referer|3a|"; http_header; content:!"Accept"; http_header; reference:md5,aa696180cd0369e264ed8e9137a4f254; classtype:trojan-activity; sid:2018419; rev:7; metadata:created_at 2014_04_24, updated_at 2019_10_15;) </h2> Added 2019-10-15 19:25:33 UTC <hr> <h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN W32/Zbot.InfoStealer WindowsUpdate Connectivity Check With Opera UA"; flow:established,to_server; content:"GET"; http_method; urilen:1; content:"User-Agent|3A| Opera/9.25 (Windows NT 6.0|3B| U|3B|"; http_header; fast_pattern:12,20; content:"Host|3A| windowsupdate.microsoft.com"; http_header; content:"Connection|3A| Close"; http_header; content:!"Referer|3A|"; http_header; content:!"Accept"; http_header; reference:md5,aa696180cd0369e264ed8e9137a4f254; classtype:trojan-activity; sid:2018419; rev:6; metadata:created_at 2014_04_24, updated_at 2014_04_24;) </h2> Added 2018-09-13 19:48:43 UTC <hr> <h2> </h2> Added 2018-09-13 17:58:38 UTC <hr> <h2> alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN W32/Zbot.InfoStealer WindowsUpdate Connectivity Check With Opera UA"; flow:established,to_server; content:"GET"; http_method; urilen:1; content:"User-Agent|3A| Opera/9.25 (Windows NT 6.0|3B| U|3B|"; http_header; fast_pattern:12,20; content:"Host|3A| windowsupdate.microsoft.com"; http_header; content:"Connection|3A| Close"; http_header; content:!"Referer|3A|"; http_header; content:!"Accept"; http_header; reference:md5,aa696180cd0369e264ed8e9137a4f254; classtype:trojan-activity; sid:2018419; rev:6; metadata:created_at 2014_04_24, updated_at 2014_04_24;) </h2> Added 2017-08-07 21:12:29 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN W32/Zbot.InfoStealer WindowsUpdate Connectivity Check With Opera UA"; flow:established,to_server; content:"GET"; http_method; urilen:1; content:"User-Agent|3A| Opera/9.25 (Windows NT 6.0|3B| U|3B|"; http_header; fast_pattern:12,20; content:"Host|3A| windowsupdate.microsoft.com"; http_header; content:"Connection|3A| Close"; http_header; content:!"Referer|3A|"; http_header; content:!"Accept"; http_header; reference:md5,aa696180cd0369e264ed8e9137a4f254; classtype:trojan-activity; sid:2018419; rev:5;) </h2> Added 2014-05-13 18:00:10 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN W32/Zbot.InfoStealer WindowsUpdate Connectivity Check With Opera UA"; flow:established,to_server; content:"GET"; http_method; urilen:1; content:"User-Agent|3A| Opera/9.25 (Windows NT 6.0|3B| U|3B| en)"; http_header; fast_pattern:12,20; content:"Host|3A| windowsupdate.microsoft.com"; http_header; content:"Connection|3A| Close"; http_header; content:!"Referer|3A|"; http_header; content:!"Accept"; http_header; reference:md5,aa696180cd0369e264ed8e9137a4f254; classtype:trojan-activity; sid:2018419; rev:3;) </h2> Added 2014-04-29 19:55:12 UTC <hr> <h2> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN W32/Zbot.InfoStealer WindowsUpdate Connectivity Check With Opera UA"; flow:established,to_server; content:"GET"; http_method; urilen:1; content:"User-Agent|3A| Opera/9.25 (Windows NT 6.0|3B| U|3B| en)"; http_header; fast_pattern:12,20; content:"Host|3A| windowsupdate.microsoft.com"; http_header; content:"Connection|3A| Close"; http_header; Content:!"Referer|3A|"; http_header; content:!"Accept"; http_header; reference:md5,aa5797bef9d954f2a0df6f4f5df05a7b; classtype:trojan-activity; sid:2018419; rev:1;) </h2> Added 2014-04-24 18:35:44 UTC <hr>
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Topic revision: r1 - 2020-04-30
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