Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE Observed Oscorp/UBEL CnC Domain (smoothcbots .xyz in TLS SNI)"; flow:established,to_server; tls.sni; content:"smoothcbots.xyz"; bsize:15; fast_pattern; reference:md5,8daf9ba69c0dcf9224fd1e4006c9dad3; reference:url,www.cleafy.com/cleafy-labs/ubel-oscorp-evolution; classtype:domain-c2; sid:2033675; rev:1; metadata:attack_target Mobile_Client, created_at 2021_08_05, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_05;)