ET MALWARE Win32/Grandoreiro Related Activity (GET)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Grandoreiro Related Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"|2f 24|TIME"; bsize:6;
    http.host;
    pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
    http.user_agent;
    content:"|28|compatible|3b 20|Clever|20|Internet|20|Suite|29|"; endswith; fast_pattern;
    reference:md5,9b1160a7c9a6b94effe25fd4e04797d3;
    reference:url,www.zscaler.com/blogs/security-research/grandoreiro-banking-trojan-new-ttps-targeting-various-industry-verticals;
    classtype:trojan-activity;
    sid:2038619; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_08_25, deployment Perimeter, malware_family Grandoreiro, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_13, reviewed_at 2025_10_24;
)