alert dns $HOME_NET any -> any any (msg:"ET INFO QR Code Generator Domain in DNS Lookup (qrco .de)"; dns.query; content:"qrco.de"; nocase; bsize:7; classtype:misc-activity; sid:2039504; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_10_20, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_20, reviewed_at 2024_10_14;)