alert dns $HOME_NET any -> any any (msg:"ET PHISHING Observed DNS Query to UNK_SparkyCarp Domain"; dns.query; dotprefix; content:".accshieldportal.com"; nocase; endswith; classtype:trojan-activity; sid:2063455; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_06_13, deployment Perimeter, confidence High, signature_severity Major, tag UNK_SparkyCarp, tag AI_Generated_Description, updated_at 2025_07_14, former_sid 2862159;)