diff --git a/detection-rules/service_abuse_self_service_platform_new_domain.yml b/detection-rules/service_abuse_self_service_platform_new_domain.yml new file mode 100644 index 00000000000..d81fdb11f3a --- /dev/null +++ b/detection-rules/service_abuse_self_service_platform_new_domain.yml @@ -0,0 +1,25 @@ +name: "Service abuse: Self-service platform redirecting to newly registered suspicious domain" +description: "Detects inbound emails containing links to self-service creation platforms that ultimately redirect to newly registered domains (less than 30 days old) using suspicious top-level domains, indicating potential abuse of legitimate services." +type: "rule" +severity: "medium" +source: | + type.inbound + and any(body.current_thread.links, + .href_url.domain.root_domain in $self_service_creation_platform_domains + and any(ml.link_analysis(.).final_dom.links, + network.whois(.href_url.domain).days_old < 30 + and .href_url.domain.tld in $suspicious_tlds + ) + ) +tags: + - "Attack surface reduction" +attack_types: + - "Credential Phishing" +tactics_and_techniques: + - "Out of band pivot" + - "Evasion" +detection_methods: + - "URL analysis" + - "Whois" + - "HTML analysis" +id: "c4c38bbe-9d77-5040-9e78-92f2d50b3806"