Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Chaos Botnet CnC Domain (are .nishabig .pro) in DNS Lookup"; dns.query; content:"are.nishabig.pro"; nocase; bsize:16; reference:url,blog.lumen.com/chaos-is-a-go-based-swiss-army-knife-of-malware/; classtype:domain-c2; sid:2039063; rev:2; metadata:affected_product Any, attack_target Client_and_Server, created_at 2022_09_29, deployment Perimeter, deprecation_reason Relevance, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_05_10;)