Rule History

alert tls $HOME_NET any -> any any (msg:"ET SCADA [nsacyber/ELITEWOLF] Tridium NiagaraN4 Default Cert Issuer Common Name"; flow:established,to_client; tls.cert_issuer; content:"CN=NiagaraN4"; fast_pattern; reference:url,github.com/nsacyber/ELITEWOLF; classtype:misc-activity; sid:2048743; rev:1; metadata:affected_product Tridum_Niagara_Series, attack_target ICS, created_at 2023_10_23, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Minor, updated_at 2023_10_23, reviewed_at 2023_10_23; target:src_ip;)