Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Unattributed CnC Domain in DNS Lookup (xsecuremail .com)"; dns.query; content:"xsecuremail.com"; nocase; endswith; reference:url,krebsonsecurity.com/wp-content/uploads/2019/04/wiproiocs.txt; classtype:command-and-control; sid:2027224; rev:3; metadata:created_at 2019_04_18, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_17;)