alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Great Cannon DDoS? JS M2"; flow:established,to_client; content:"200"; http_stat_code; file_data; content:"var _a"; depth:6; content:"|27 2c|_b"; distance:0; within:120; content:"|27 2c|_c"; distance:0; within:120; content:"|2c|TASKID|3d|"; distance:0; content:"|2c|MAGICNUM|3d|"; distance:0; within:25; content:"|2c|EXECNUM|3d|"; distance:0; within:25; content:"|2c|FEEDBACKADDR|3d|"; distance:0; within:25; content:"|5d 3b|if|28 2f|chrome|5c 2f 28 5b 5c|d|5d 2b 29 2f|gi"; distance:0; fast_pattern; content:"|5d 5d 28|window|5b 5f|"; distance:27; within:11; metadata: former_category WEB_CLIENT; reference:url,citizenlab.ca/2015/04/chinas-great-cannon/; reference:url,twitter.com/chrisdoman/status/1168576334777454594; classtype:attempted-dos; sid:2027962; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, deployment Perimeter, signature_severity Minor, created_at 2019_09_06, updated_at 2019_09_09;)

Added 2019-09-09 19:16:22 UTC


alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Great Cannon DDoS? JS M2"; content:"200"; http_stat_code; file_data; content:"var _a"; depth:6; content:"|27 2c|_b"; distance:0; within:120; content:"|27 2c|_c"; distance:0; within:120; content:"|2c|TASKID|3d|"; distance:0; content:"|2c|MAGICNUM|3d|"; distance:0; within:25; content:"|2c|EXECNUM|3d|"; distance:0; within:25; content:"|2c|FEEDBACKADDR|3d|"; distance:0; within:25; content:"|5d 3b|if|28 2f|chrome|5c 2f 28 5b 5c|d|5d 2b 29 2f|gi"; distance:0; fast_pattern; content:"|5d 5d 28|window|5b 5f|"; distance:27; within:11; metadata: former_category WEB_CLIENT; reference:url,citizenlab.ca/2015/04/chinas-great-cannon/; reference:url,twitter.com/chrisdoman/status/1168576334777454594; classtype:attempted-dos; sid:2027962; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, deployment Perimeter, signature_severity Minor, created_at 2019_09_06, updated_at 2019_09_06;)

Added 2019-09-06 19:00:13 UTC


Topic revision: r1 - 2019-09-09 - TWikiGuest
 
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