alert dns $HOME_NET any -> any any (msg:"ET MALWARE Possible Pegasus Related DNS Lookup (smscentro .com)"; dns.query; content:"smscentro.com"; startswith; nocase; endswith; fast_pattern; reference:url,citizenlab.org/2017/06/reckless-exploit-mexico-nso/; classtype:trojan-activity; sid:2024408; rev:6; metadata:attack_target Client_Endpoint, created_at 2017_06_19, deployment Perimeter, malware_family Pegasus, performance_impact Low, confidence Medium, signature_severity Major, tag Targeted, tag APT, updated_at 2024_04_13;)