alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS Nuclear EK Exploit URI Struct Aug 12"; flow:to_server,established; urilen:>100; content:!"|20|"; http_uri; content:!"+"; http_uri; content:!"_"; http_uri; content:!"-"; http_uri; content:"search?q="; http_header; fast_pattern; pcre:"/\/(?:[^?]+\?)(?=[A-Z&=\d]*?[a-z])(?=[a-zA-Z\d&=]*?[A-Za-z=&]\d[A-Za-z])(?=[a-zA-Z\d&=]*?[a-z\d][A-Z][A-Za-z\d])[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+[&=A-Za-z0-9]*?$/U"; pcre:"/Referer\x3a\x20http\x3a\x2f+(?!www\.)(?P[^\x3a\x2f\r\n]+)[^\r\n]*?\/search\?q=(?=[A-Z&=\d]*?[a-z])(?=[a-zA-Z\d&=]*?[A-Za-z=&]\d[A-Za-z])(?=[a-zA-Z\d&=]*?[a-z\d][A-Z][A-Za-z\d])[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+[&=A-Za-z0-9]*?\r\n.*?Host\x3a\x20(?P=refhost)/Hsi"; pcre:!"/^Host\x3a\x20(?:[^\r\n]+\.)?(?:ya(?:ndex|hoo)|google|bing)\.(?:com?)?(?:\.[a-z]{2})?(:?\x3a\d{1,5})?\r$/Hmi"; content:!"Cookie|3a 20|"; flowbits:set,NuclearEK; classtype:trojan-activity; sid:2021620; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag Exploit_Kit, tag Nuclear, signature_severity Critical, created_at 2015_08_12, malware_family Nuclear, updated_at 2019_10_07;)

Added 2019-10-08 19:34:31 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS Nuclear EK Exploit URI Struct Aug 12"; flow:to_server,established; urilen:>100; content:!"|20|"; http_uri; content:!"+"; http_uri; content:!"_"; http_uri; content:!"-"; http_uri; content:"search?q="; http_header; fast_pattern:only; pcre:"/\/(?:[^?]+\?)(?=[A-Z&=\d]*?[a-z])(?=[a-zA-Z\d&=]*?[A-Za-z=&]\d[A-Za-z])(?=[a-zA-Z\d&=]*?[a-z\d][A-Z][A-Za-z\d])[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+[&=A-Za-z0-9]*?$/U"; pcre:"/Referer\x3a\x20http\x3a\x2f+(?!www\.)(?P[^\x3a\x2f\r\n]+)[^\r\n]*?\/search\?q=(?=[A-Z&=\d]*?[a-z])(?=[a-zA-Z\d&=]*?[A-Za-z=&]\d[A-Za-z])(?=[a-zA-Z\d&=]*?[a-z\d][A-Z][A-Za-z\d])[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+&[A-Za-z0-9]+=[A-Za-z0-9]+[&=A-Za-z0-9]*?\r\n.*?Host\x3a\x20(?P=refhost)/Hsi"; pcre:!"/^Host\x3a\x20(?:[^\r\n]+\.)?(?:ya(?:ndex|hoo)|google|bing)\.(?:com?)?(?:\.[a-z]{2})?(:?\x3a\d{1,5})?\r$/Hmi"; content:!"Cookie|3a 20|"; flowbits:set,NuclearEK; classtype:trojan-activity; sid:2021620; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag Exploit_Kit, tag Nuclear, signature_severity Critical, created_at 2015_08_12, malware_family Nuclear, updated_at 2016_07_01;)

Added 2017-08-07 21:16:19 UTC


Topic revision: r1 - 2019-10-08 - TWikiGuest
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © Emerging Threats