#alert dns $HOME_NET any -> any any (msg:"ET POLICY Observed DNS Query to KnowBe4? Simulated Phish Domain"; dns_query; content:".authentication.directory"; nocase; isdataat:!1,relative; threshold: type limit, track by_src, count 1, seconds 120; classtype:trojan-activity; sid:2029834; rev:2; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, former_category POLICY, signature_severity Minor, updated_at 2021_12_23;)

Added 2021-12-23 14:00:06 UTC

#alert dns $HOME_NET any -> any any (msg:"ET POLICY Observed DNS Query to KnowBe4? Simulated Phish Domain"; dns_query; content:".authentication.directory"; nocase; isdataat:!1,relative; classtype:trojan-activity; sid:2029834; rev:1; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, former_category PHISHING, signature_severity Minor, updated_at 2020_11_16;)

Added 2021-12-22 17:07:54 UTC

#alert dns $HOME_NET any -> any any (msg:"ET CURRENT_EVENTS Observed DNS Query to KnowBe4? Simulated Phish Domain"; dns_query; content:".authentication.directory"; nocase; isdataat:!1,relative; classtype:trojan-activity; sid:2029834; rev:1; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, former_category PHISHING, signature_severity Minor, updated_at 2020_11_16;)

Added 2021-02-10 19:40:08 UTC

#alert dns $HOME_NET any -> any any (msg:"ET CURRENT_EVENTS Observed DNS Query to Knowb4 Simulated Phish Domain"; dns_query; content:".authentication.directory"; nocase; isdataat:!1,relative; classtype:trojan-activity; sid:2029834; rev:1; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, former_category PHISHING, signature_severity Minor, updated_at 2020_11_16;)

Added 2020-11-16 19:08:25 UTC

alert dns $HOME_NET any -> any any (msg:"ET CURRENT_EVENTS Observed DNS Query to Knowb4 Simulated Phish Domain"; dns_query; content:".authentication.directory"; nocase; isdataat:!1,relative; classtype:trojan-activity; sid:2029834; rev:1; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, former_category PHISHING, signature_severity Minor, updated_at 2020_04_08;)

Added 2020-08-05 19:17:54 UTC

alert dns $HOME_NET any -> any any (msg:"ET CURRENT_EVENTS Observed DNS Query to Knowb4 Simulated Phish Domain"; dns_query; content:".authentication.directory"; nocase; isdataat:!1,relative; metadata: former_category PHISHING; classtype:trojan-activity; sid:2029834; rev:1; metadata:affected_product Any, attack_target Client_Endpoint, deployment Perimeter, signature_severity Minor, created_at 2020_04_08, updated_at 2020_04_08;)

Added 2020-04-08 18:33:54 UTC