ET MALWARE Win32/PurpleFox Related Activity (GET)

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET /i.php?i="; fast_pattern; startswith;
http.user_agent;
content:"Windows Installer"; bsize:17;
http.header_names;
content:!"Referer";
content:"|0d 0a|Connection|0d 0a|Accept|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|";
Raw source ET MALWARE Win32/PurpleFox Related Activity (GET) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/PurpleFox Related Activity (GET)";
    flow:established,to_server;
    http.request_line;
    content:"GET /i.php?i="; fast_pattern; startswith;
    http.user_agent;
    content:"Windows Installer"; bsize:17;
    http.header_names;
    content:!"Referer";
    content:"|0d 0a|Connection|0d 0a|Accept|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|";
    reference:md5,7f757563585debbbccc3e34664de04fe;
    reference:md5,c793425d192af8f89b1b8c7e1ea6f792;
    reference:url,twitter.com/Max_Mal_/status/1498351091066589184;
    classtype:trojan-activity;
    sid:2035313; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_02_28, deployment Perimeter, malware_family PurpleFox, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_28;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.