alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01 00 00 00 00|"; offset:2; depth:10; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; isdataat:!1,relative; threshold: type both, count 10, seconds 90, track by_dst; content:!"|02|l2|06|nessus|03|org"; content:!"trr|03|dns|07|nextdns|02|io"; content:!"|08|cloudapp|03|net"; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:7; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_28, deployment Perimeter, former_category MALWARE, malware_family Cobalt_Strike, signature_severity Major, tag c2, updated_at 2021_07_19, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)

Added 2021-07-19 18:17:35 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!"|02|l2|06|nessus|03|org"; content:!"trr|03|dns|07|nextdns|02|io"; content:!"|08|cloudapp|03|net"; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_28, deployment Perimeter, former_category MALWARE, malware_family Cobalt_Strike, signature_severity Major, tag c2, updated_at 2020_08_19, 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 18:19:37 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!"|02|l2|06|nessus|03|org"; content:!"trr|03|dns|07|nextdns|02|io"; content:!"|08|cloudapp|03|net"; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_28, deployment Perimeter, former_category MALWARE, malware_family Cobalt_Strike, signature_severity Major, updated_at 2020_08_19;)

Added 2020-09-23 18:34:52 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!"|02|l2|06|nessus|03|org"; content:!"trr|03|dns|07|nextdns|02|io"; content:!"|08|cloudapp|03|net"; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_28, deployment Perimeter, former_category TROJAN, malware_family CobaltStrike?, malware_family Cobalt_Strike, signature_severity Major, updated_at 2020_08_19;)

Added 2020-08-19 18:14:32 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!"|02|l2|06|nessus|03|org"; content:!"trr|03|dns|07|nextdns|02|io"; content:!"|08|cloudapp|03|net"; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_28, deployment Perimeter, former_category TROJAN, malware_family CobaltStrike?, malware_family Cobalt_Strike, signature_severity Major, updated_at 2020_08_06;)

Added 2020-08-07 19:05:37 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!"|02|l2|06|nessus|03|org"; content:!"trr|03|dns|07|nextdns|02|io"; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_28, deployment Perimeter, former_category TROJAN, malware_family CobaltStrike?, malware_family Cobalt_Strike, signature_severity Major, updated_at 2020_07_09;)

Added 2020-08-05 19:15:06 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!"|02|l2|06|nessus|03|org"; content:!"trr|03|dns|07|nextdns|02|io"; metadata: former_category TROJAN; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_08_28, malware_family CobaltStrike?, malware_family Cobalt_Strike, updated_at 2020_07_09;)

Added 2020-07-09 18:48:43 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!".l2.nessus.org"; content:!"trr|03|dns|07|nextdns|02|io"; metadata: former_category TROJAN; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_08_28, malware_family CobaltStrike?, malware_family Cobalt_Strike, updated_at 2020_06_10;)

Added 2020-06-10 18:27:11 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!".l2.nessus.org"; content:!"trr.dns.nextdns.io"; metadata: former_category TROJAN; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_08_28, malware_family CobaltStrike?, malware_family Cobalt_Strike, updated_at 2020_06_04;)

Added 2020-06-04 18:24:49 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; content:!".l2.nessus.org"; metadata: former_category TROJAN; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_08_28, malware_family CobaltStrike?, malware_family Cobalt_Strike, updated_at 2018_08_28;)

Added 2018-09-17 18:33:36 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; metadata: former_category TROJAN; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_08_28, malware_family CobaltStrike?, malware_family Cobalt_Strike, updated_at 2018_08_28;)

Added 2018-09-13 19:55:08 UTC


Added 2018-09-13 18:02:26 UTC


alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"ET TROJAN CobaltStrike? DNS Beacon Response"; content:"|81 80 00 01 00 01|"; depth:6; offset:2; content:"|c0 0c 00 01 00 01 00 00 00 00 00 04 00 00 00 00|"; threshold: type both, count 10, seconds 90, track by_dst; metadata: former_category TROJAN; reference:url,www.youtube.com/watch?v=zAB5G-QOyx8; classtype:trojan-activity; sid:2026040; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_08_28, malware_family CobaltStrike?, malware_family Cobalt_Strike, updated_at 2018_08_28;)

Added 2018-08-28 17:07:04 UTC


Topic revision: r1 - 2021-07-19 - TWikiGuest
 
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