alert http $HOME_NET any -> $EXTERNAL_NET 1024: (msg:"ET MALWARE MustangPanda APT Dropper Activity (POST)"; flow:established,to_server; http.method; content:"POST"; http.header_names; content:"|0d 0a|Connection|0d 0a|Accept|0d 0a|Content-Length|0d 0a|Host|0d 0a 0d 0a|"; bsize:46; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; http.request_body; content:">"; offset:8; content:">"; distance:1; within:1; content:">"; distance:7; within:1; content:"|2e|exe|5c|"; distance:0; fast_pattern; reference:md5,4a9b98832ba5c2b74f80dadd16b8a079; reference:url,twitter.com/StillAzureH/status/1505823479945625604; classtype:trojan-activity; sid:2035682; rev:3; metadata:created_at 2022_03_31, confidence High, signature_severity Major, tag TA416, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_12;)