ET WEB_SERVER c99 Shell Backdoor Var Override Cookie

Query · suricata

flow:to_server,established;
content:"c99shcook"; nocase; fast_pattern;
pcre:"/c99shcook/Ci";
Raw source ET WEB_SERVER c99 Shell Backdoor Var Override Cookie · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SERVER c99 Shell Backdoor Var Override Cookie";
    flow:to_server,established;
    content:"c99shcook"; nocase; fast_pattern;
    pcre:"/c99shcook/Ci";
    reference:url,thehackerblog.com/every-c99-php-shell-is-backdoored-aka-free-shells/;
    classtype:trojan-activity;
    sid:2018602; rev:3;
    metadata:created_at 2014_06_24, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_08;
)

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.