alert tcp any any -> $HOME_NET 80 (msg:"ET TROJAN SYNful Knock Cisco IOS Router Implant CnC? Beacon (INBOUND)"; flow:established,to_server; content:"|00 00 00 00|text|00|"; byte_jump:4,0,relative,post_offset -1; isdataat:!2,relative; reference:url,fireeye.com/blog/threat-research/2015/09/synful_knock_-_acis.html; classtype:trojan-activity; sid:2021785; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_09_15, deployment Perimeter, former_category MALWARE, signature_severity Major, tag c2, updated_at 2015_09_15, 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 18:19:29 UTC


alert tcp any any -> $HOME_NET 80 (msg:"ET TROJAN SYNful Knock Cisco IOS Router Implant CnC? Beacon (INBOUND)"; flow:established,to_server; content:"|00 00 00 00|text|00|"; byte_jump:4,0,relative,post_offset -1; isdataat:!2,relative; reference:url,fireeye.com/blog/threat-research/2015/09/synful_knock_-_acis.html; classtype:trojan-activity; sid:2021785; rev:3; metadata:created_at 2015_09_15, former_category MALWARE, updated_at 2015_09_15;)

Added 2020-08-05 19:11:38 UTC


alert tcp any any -> $HOME_NET 80 (msg:"ET TROJAN SYNful Knock Cisco IOS Router Implant CnC? Beacon (INBOUND)"; flow:established,to_server; content:"|00 00 00 00|text|00|"; byte_jump:4,0,relative,post_offset -1; isdataat:!2,relative; metadata: former_category MALWARE; reference:url,fireeye.com/blog/threat-research/2015/09/synful_knock_-_acis.html; classtype:trojan-activity; sid:2021785; rev:3; metadata:created_at 2015_09_15, updated_at 2015_09_15;)

Added 2019-09-19 19:26:28 UTC


alert tcp any any -> $HOME_NET 80 (msg:"ET TROJAN SYNful Knock Cisco IOS Router Implant CnC? Beacon (INBOUND)"; flow:established,to_server; content:"|00 00 00 00|text|00|"; byte_jump:4,0,relative,post_offset -1; isdataat:!2,relative; reference:url,fireeye.com/blog/threat-research/2015/09/synful_knock_-_acis.html; classtype:trojan-activity; sid:2021785; rev:3; metadata:created_at 2015_09_15, updated_at 2015_09_15;)

Added 2018-09-13 19:51:42 UTC


Added 2018-09-13 18:00:23 UTC


alert tcp any any -> $HOME_NET 80 (msg:"ET TROJAN SYNful Knock Cisco IOS Router Implant CnC? Beacon (INBOUND)"; flow:established,to_server; content:"|00 00 00 00|text|00|"; byte_jump:4,0,relative,post_offset -1; isdataat:!2,relative; reference:url,fireeye.com/blog/threat-research/2015/09/synful_knock_-_acis.html; classtype:trojan-activity; sid:2021785; rev:3; metadata:created_at 2015_09_15, updated_at 2015_09_15;)

Added 2017-08-07 21:16:32 UTC


alert tcp any any -> $HOME_NET 80 (msg:"ET TROJAN SYNful Knock Cisco IOS Router Implant CnC? Beacon (INBOUND)"; flow:established,to_server; content:"|00 00 00 00|text|00|"; byte_jump:4,0,relative,post_offset -1; isdataat:!2,relative; reference:url,fireeye.com/blog/threat-research/2015/09/synful_knock_-_acis.html; classtype:trojan-activity; sid:2021785; rev:3;)

Added 2015-09-16 11:17:50 UTC


alert tcp any any -> $HOME_NET 80 (msg:"ET TROJAN SYNful Knock Cisco IOS Router Implant CnC? Beacon (INBOUND)"; flow:established,to_server; content:"|00 00 00 00|text|00|"; byte_jump:4,0,relative,post_offset 3; isdataat:!2,relative; reference:url,fireeye.com/blog/threat-research/2015/09/synful_knock_-_acis.html; classtype:trojan-activity; sid:2021785; rev:2;)

Added 2015-09-15 18:14:33 UTC


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