ET PHISHING Tech Support Phone Scam Landing 2023-04-17

Query · suricata

flow:established,to_client;
http.stat_code;
content:"401";
http.header;
content:"WWW-Authenticate|3a 20|Basic realm=|22|"; nocase;
content:"Call"; nocase; distance:0;
content:"Security Helpline immediately."; nocase; distance:0; fast_pattern;
Raw source ET PHISHING Tech Support Phone Scam Landing 2023-04-17 · 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 PHISHING Tech Support Phone Scam Landing 2023-04-17";
    flow:established,to_client;
    http.stat_code;
    content:"401";
    http.header;
    content:"WWW-Authenticate|3a 20|Basic realm=|22|"; nocase;
    content:"Call"; nocase; distance:0;
    content:"Security Helpline immediately."; nocase; distance:0; fast_pattern;
    reference:url,malwarebytes.com/blog/threat-intelligence/2023/04/massive-malvertising-campaign-targets-seniors-via-fake-weebly-sites;
    classtype:credential-theft;
    sid:2044972; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_04_17, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_17;
)

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