alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TrueBot/Silence.Downlaoder Screenshot Post M1"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.request_body; content:"|0d 0a|Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|fileToUpload|22 3b 20|filename|3d 22|"; fast_pattern; pcre:"/^[a-f0-9]{8}\-[a-f0-9]{8}\x22\x0d\x0a/R"; content:"Content|2d|Type|3a 20|application|2f|octet|2d|stream|0d 0a 0d 0a 89 50 4e 47 0d 0a 1a 0a|"; within:50; reference:md5,20643549f19bed9a6853810262622755; reference:url,tria.ge/221006-rxe8gshhep; classtype:trojan-activity; sid:2039120; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_10_07, deployment Perimeter, malware_family TrueBot, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_07;)