#alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"0/"; http_uri; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; http_header; fast_pattern:21,20; content:"%"; http_client_body; pcre:"/^\/[a-z]+\/[a-z]+\//U"; pcre:"/^-?\d+=(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){6}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P=var2)(?:[a-zA-Z0-9]|%[A-F0-9]{2}){4}(?P=var1)/P"; classtype:trojan-activity; sid:2021038; rev:4; metadata:attack_target Client_Endpoint, created_at 2015_04_29, deployment Perimeter, former_category EXPLOIT_KIT, signature_severity Major, tag c2, updated_at 2015_04_29, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)

Added 2021-06-18 18:19:25 UTC


#alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"0/"; http_uri; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; http_header; fast_pattern:21,20; content:"%"; http_client_body; pcre:"/^\/[a-z]+\/[a-z]+\//U"; pcre:"/^-?\d+=(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){6}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P=var2)(?:[a-zA-Z0-9]|%[A-F0-9]{2}){4}(?P=var1)/P"; classtype:trojan-activity; sid:2021038; rev:4; metadata:created_at 2015_04_29, updated_at 2015_04_29;)

Added 2020-02-26 20:42:12 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"0/"; http_uri; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; http_header; fast_pattern:21,20; content:"%"; http_client_body; pcre:"/^\/[a-z]+\/[a-z]+\//U"; pcre:"/^-?\d+=(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){6}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P=var2)(?:[a-zA-Z0-9]|%[A-F0-9]{2}){4}(?P=var1)/P"; classtype:trojan-activity; sid:2021038; rev:4; metadata:created_at 2015_04_29, updated_at 2015_04_29;)

Added 2018-09-13 19:51:08 UTC


Added 2018-09-13 18:00:02 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"0/"; http_uri; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; http_header; fast_pattern:21,20; content:"%"; http_client_body; pcre:"/^\/[a-z]+\/[a-z]+\//U"; pcre:"/^-?\d+=(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){6}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P=var2)(?:[a-zA-Z0-9]|%[A-F0-9]{2}){4}(?P=var1)/P"; classtype:trojan-activity; sid:2021038; rev:4; metadata:created_at 2015_04_29, updated_at 2015_04_29;)

Added 2017-08-07 21:15:39 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"0/"; http_uri; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; http_header; fast_pattern:21,20; content:"%"; http_client_body; pcre:"/^\/[a-z]+\/[a-z]+\//U"; pcre:"/^-?\d+=(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){6}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P=var2)(?:[a-zA-Z0-9]|%[A-F0-9]{2}){4}(?P=var1)/P"; classtype:trojan-activity; sid:2021038; rev:4;)

Added 2015-06-23 00:31:02 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"0/"; http_uri; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; http_header; fast_pattern:21,20; content:"%"; http_client_body; pcre:"/^\/[a-z]+\/[a-z]+\//U"; pcre:"/^-?\d+=(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){6}(?P(?:[a-zA-Z0-9]|%[A-F0-9]{2}))(?:[a-zA-Z0-9]|%[A-F0-9]{2}){2}(?P=var2)(?:[a-zA-Z0-9]|%[A-F0-9]{2}){4}(?P=var1)/P"; classtype:trojan-activity; sid:2021038; rev:4;)

Added 2015-06-22 18:24:09 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"CpvkUr%7ByctgRtqfwev"; http_client_body; fast_pattern; content:"Ykpfqyu%22Fghgpfgt"; http_client_body; classtype:trojan-activity; sid:2021038; rev:3;)

Added 2015-05-01 18:45:28 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS CottonCastle?/Niteris EK POST Beacon April 29 2015"; flow:established,to_server; content:"POST"; http_method; content:"/0/"; http_uri; fast_pattern:only; pcre:"/\/0\/\d+\/[a-z]+$/U"; content:"Referer|3a 20|"; http_header; pcre:"/^Referer\x3a[^\r\n]+\/\d\/[A-Z]+\/[a-f0-9]{32}\r?$/Hm"; classtype:trojan-activity; sid:2021038; rev:2;)

Added 2015-04-29 19:06:23 UTC


Topic revision: r1 - 2021-06-18 - TWikiGuest
 
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