ET MALWARE TA444 Related CnC Payload Request

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"-a";
content:"1.msi"; distance:5; within:5; endswith; fast_pattern;
pcre:"/-a[0-9]{5}1.msi$/";
Raw source ET MALWARE TA444 Related CnC Payload Request · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE TA444 Related CnC Payload Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"-a";
    content:"1.msi"; distance:5; within:5; endswith; fast_pattern;
    pcre:"/-a[0-9]{5}1.msi$/";
    reference:url,securelist.com/bluenoroff-methods-bypass-motw/108383/;
    classtype:trojan-activity;
    sid:2043157; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_12_30, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_30;
)

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