alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Sakula/Mivast RAT CnC Beacon 6"; flow:to_server,established; http.method; content:"POST"; http.uri; content:".asp?cookie="; fast_pattern; content:"&type="; content:"&vid="; http.header_names; content:!"Accept-"; content:!"Referer"; reference:md5,3cd598e8e2fd033134d8784251eff59e; reference:url,www.secureworks.com/cyber-threat-intelligence/threats/sakula-malware-family/; classtype:command-and-control; sid:2021569; rev:4; metadata:attack_target Client_Endpoint, created_at 2015_08_01, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_08_18, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)