alert udp any 53 -> $HOME_NET any (msg:"ET TROJAN Possible Kelihos .eu CnC? Domain Generation Algorithm (DGA) Lookup NXDOMAIN Response"; byte_test:1,&,128,2; byte_test:1,&,1,3; byte_test:1,&,2,3; content:"|02|eu|00|"; fast_pattern:only; pcre:"/\x00\x07[a-z0-9]{7}\x02eu\x00/"; threshold: type both, track by_src, count 2, seconds 60; classtype:trojan-activity; sid:2014372; rev:5; metadata:created_at 2012_03_14, updated_at 2012_03_14;)

Added 2017-08-07 21:07:46 UTC


alert udp any 53 -> $HOME_NET any (msg:"ET TROJAN Possible Kelihos .eu CnC? Domain Generation Algorithm (DGA) Lookup NXDOMAIN Response"; byte_test:1,&,128,2; byte_test:1,&,1,3; byte_test:1,&,2,3; content:"|02|eu|00|"; fast_pattern:only; pcre:"/\x00\x07[a-z0-9]{7}\x02eu\x00/"; threshold: type both, track by_src, count 2, seconds 60; classtype:trojan-activity; sid:2014372; rev:5;)

Added 2014-09-15 18:30:49 UTC


alert udp any 53 -> $HOME_NET any (msg:"ET CURRENT_EVENTS Possible Kelihos .eu CnC? Domain Generation Algorithm (DGA) Lookup NXDOMAIN Response"; byte_test:1,&,128,2; byte_test:1,&,1,3; byte_test:1,&,2,3; content:"|02|eu|00|"; fast_pattern:only; pcre:"/\x00\x07[a-z0-9]{7}\x02eu\x00/"; threshold: type both, track by_src, count 2, seconds 60; classtype:trojan-activity; sid:2014372; rev:4;)

Added 2012-03-15 10:52:25 UTC


alert udp any 53 -> $HOME_NET any (msg:"ET CURRENT_EVENTS Possible Kelihos .eu CnC? Domain Generation Algorithm (DGA) Lookup NXDOMAIN Response"; byte_test:1,&,128,2; byte_test:1,&,1,3; byte_test:1,&,2,3; content:"|02|eu|00|"; fast_pattern:only; pcre:"/\x07[a-z0-9]{7}\x02eu\x00/"; threshold: type both, track by_src, count 2, seconds 60; classtype:trojan-activity; sid:2014372; rev:3;)

Added 2012-03-14 18:18:54 UTC


Topic revision: r1 - 2017-08-08 - TWikiGuest
 
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