ET DELETED Blackhole/Cool obfuscated plugindetect in charcodes w/o sep Jul 10 2013

Query · suricata

flow:established,from_server;
file_data;
content:"<div>";
content:!"<"; within:1000;
pcre:"/^([0-9a-z]{8})?(?P<p>[0-9a-z]{2})(?P<d>(?!(?P=p))[0-9a-z]{2})(?P=p)(?P=d)([0-9a-z]{2}){10}(?P<q>[0-9a-z]{2})[0-9a-z]{2}(?P<dot>[0-9a-z]{2})[0-9a-z]{2}(?P=dot)[0-9a-z]{2}(?P=q)/R";
Raw source ET DELETED Blackhole/Cool obfuscated plugindetect in charcodes w/o sep Jul 10 2013 · 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 DELETED Blackhole/Cool obfuscated plugindetect in charcodes w/o sep Jul 10 2013";
#    flow:established,from_server;
#    file_data;
#    content:"<div>";
#    content:!"<"; within:1000;
#    pcre:"/^([0-9a-z]{8})?(?P<p>[0-9a-z]{2})(?P<d>(?!(?P=p))[0-9a-z]{2})(?P=p)(?P=d)([0-9a-z]{2}){10}(?P<q>[0-9a-z]{2})[0-9a-z]{2}(?P<dot>[0-9a-z]{2})[0-9a-z]{2}(?P=dot)[0-9a-z]{2}(?P=q)/R";
#    classtype:trojan-activity;
#    sid:2017346; rev:5;
#    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2013_08_20, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, updated_at 2019_07_26, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information;
#)

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