Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Known Indexsinas CnC Domain"; dns.query; content:"a.ccmd.website"; endswith; fast_pattern; reference:url,www.guardicore.com/labs/smb-worm-indexsinas/; classtype:domain-c2; sid:2033235; rev:1; metadata:created_at 2021_07_05, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_05;)