ET MALWARE JS/Cloud9 Clipboard Exfiltration Attempt

Query · suricata

flow:established,to_server;
http.uri;
content:"/clipboard.php?connect="; fast_pattern; startswith;
content:"clipboard=";
content:"referer=";
content:"rand=";
Raw source ET MALWARE JS/Cloud9 Clipboard Exfiltration Attempt · Suricata
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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 JS/Cloud9 Clipboard Exfiltration Attempt";
    flow:established,to_server;
    http.uri;
    content:"/clipboard.php?connect="; fast_pattern; startswith;
    content:"clipboard=";
    content:"referer=";
    content:"rand=";
    reference:url,www.zimperium.com/blog/the-case-of-cloud9-chrome-botnet/;
    classtype:trojan-activity;
    sid:2039763; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_11_09, deployment Perimeter, deployment SSLDecrypt, malware_family JS_Cloud9, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_09;
)

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