ET WEB_CLIENT Likely Malicious PDF Containing StrReverse

Query · suricata

flow:established,to_client;
content:"%PDF-";
content:"StrReverse|28|"; distance:0; nocase;
Raw source ET WEB_CLIENT Likely Malicious PDF Containing StrReverse · 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_CLIENT Likely Malicious PDF Containing StrReverse";
    flow:established,to_client;
    content:"%PDF-";
    content:"StrReverse|28|"; distance:0; nocase;
    classtype:bad-unknown;
    sid:2011246; rev:4;
    metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;
)

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