alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Ailurophile Infostealer Data Exfiltration Attempt M1"; flow:established,to_server; flowbits:set,ET.Ailurophile.Exfil; http.method; content:"POST"; http.uri; bsize:11; content:"/upload.php"; http.request_body; content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|"; content:"|5c 5c|AppData|5c 5c|Local|5c 5c|Ailurophile.zip"; fast_pattern; within:100; content:"PK"; within:50; content:"Ailurophile/PK"; within:50; reference:url,www.gdatasoftware.com/blog/2024/08/38005-ailurophile-infostealer; classtype:trojan-activity; sid:2055347; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_08_19, deployment Perimeter, malware_family Ailurophile_Stealer, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_08_19; target:src_ip;)