Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE SparklingGoblin/Winnti Group SideWalk Domain in DNS Lookup"; dns.query; content:"cdn.cloudfiare.workers.dev"; nocase; bsize:26; reference:url,www.welivesecurity.com/2021/08/24/sidewalk-may-be-as-dangerous-as-crosswalk/; classtype:domain-c2; sid:2033785; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_08_25, deployment Perimeter, malware_family Winnti_related, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_25;)