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;
)