alert dns $HOME_NET any -> any any (msg:"ET INFO Android Adups Firmware DNS Query"; dns.query; content:"bigdata.adups.com"; startswith; nocase; endswith; fast_pattern; reference:url,www.kryptowire.com/adups_security_analysis.html; classtype:policy-violation; sid:2023515; rev:6; metadata:affected_product Android, attack_target Mobile_Client, created_at 2016_11_16, deployment Perimeter, confidence High, signature_severity Informational, tag Android, updated_at 2024_04_13;)