alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible APT40/Dadstache Stage 2 Payload Beacon"; flow:to_server,established; http.method; content:"POST"; http.request_body; content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|file|22 3b 20|filename=|22|"; content:".png|22 0d 0a|Content-Type: video/JPEG|0d 0a 0d 0a 89 50 4e 47|"; distance:0; fast_pattern; reference:url,www.mycert.org.my/portal/advisory?id=MA-774.022020; reference:md5,9cf5fb135c3cc29e79b2a1c78233934b; classtype:targeted-activity; sid:2029420; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_11, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2020_02_11, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)