ET MALWARE Suspected Cobalt Strike Beacon User-Agent String

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Mozilla/5.0 |28|compatible|3b 20|MSIE 9.0|3b 20|Windows NT 6.1|3b 20|Trident/5.0|3b 20|NP07|3b 20|NP07|29|";
Raw source ET MALWARE Suspected Cobalt Strike Beacon User-Agent String · Suricata
Esc
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 Suspected Cobalt Strike Beacon User-Agent String";
    flow:established,to_server;
    http.user_agent;
    content:"Mozilla/5.0 |28|compatible|3b 20|MSIE 9.0|3b 20|Windows NT 6.1|3b 20|Trident/5.0|3b 20|NP07|3b 20|NP07|29|";
    reference:url,github.com/sophoslabs/IoCs/blob/master/Troj-Miner-AED.csv;
    classtype:trojan-activity;
    sid:2037020; rev:1;
    metadata:attack_target Client_and_Server, created_at 2022_06_15, deployment Perimeter, malware_family CobaltStrike, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_15;
)

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