alert dns $HOME_NET any -> any any (msg:"ET INFO Clearbit Logo Query in DNS Lookup"; dns.query; content:"logo.clearbit.com"; nocase; bsize:17; classtype:misc-activity; sid:2044300; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_02_22, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2023_02_22;)