alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE TA459 Related Activity (Inbound)"; flow:established,to_client; http.stat_code; content:"200"; file.data; content:"<HIDER>"; startswith; fast_pattern; content:"|21|</HIDER>"; endswith; reference:md5,00079dbf1d25e1d592709e5f895ff5b7; reference:url,twitter.com/nao_sec/status/1539246761067573249; classtype:trojan-activity; sid:2037080; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_06_22, deployment Perimeter, malware_family TA459, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_22;)