ET RETIRED PennyWise Stealer Data Exfil M1

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED PennyWise Stealer Data Exfil M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/getfile"; bsize:8;
    http.header_names;
    content:"|0d 0a|Content-Type|0d 0a|Host|0d 0a|Content-Length|0d 0a|Expect|0d 0a|Connection|0d 0a 0d 0a|"; bsize:60;
    http.request_body;
    content:"*PennyWise v"; fast_pattern;
    content:"*Browsers:*"; distance:0;
    content:"*Wallets:*"; distance:0;
    content:"*YouTube:*"; distance:0;
    content:"*Grabber:*"; distance:0;
    content:"PK|03 04|"; distance:0;
    byte_test:1,<=,20,0,relative;
    content:"Information.txt"; distance:0;
    reference:md5,6aa187bd65ee038e2e8c895a0b6a2977;
    classtype:trojan-activity;
    sid:2036597; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_05_16, deployment Perimeter, former_category MALWARE, malware_family pennywise_stealer, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;
)