ET ACTIVEX Adobe browser document ActiveX DoS Attempt

Query · suricata

flow:established,to_client;
content:"clsid"; nocase;
content:"CA8A9780-280D-11CF-A24D-444553540000"; nocase; distance:0;
content:"src"; nocase;
pcre:"/<OBJECT\s+[^>]*classid\s*=\s*[\x22\x27]?\s*clsid\s*\x3a\s*\x7B?\s*CA8A9780-280D-11CF-A24D-444553540000/si";
Raw source ET ACTIVEX Adobe browser document ActiveX DoS Attempt · 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 ACTIVEX Adobe browser document ActiveX DoS Attempt";
    flow:established,to_client;
    content:"clsid"; nocase;
    content:"CA8A9780-280D-11CF-A24D-444553540000"; nocase; distance:0;
    content:"src"; nocase;
    pcre:"/<OBJECT\s+[^>]*classid\s*=\s*[\x22\x27]?\s*clsid\s*\x3a\s*\x7B?\s*CA8A9780-280D-11CF-A24D-444553540000/si";
    reference:url,www.packetstormsecurity.nl/0911-exploits/acropdf-dos.txt;
    classtype:attempted-user;
    sid:2010726; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence Medium, signature_severity Major, tag ActiveX, updated_at 2019_09_27;
)

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