ET MALWARE MICROPSIA CnC Checkin M2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"D5wdnvX3A="; startswith;
content:"&WgJEo7TIB=c2xsZ3JhdA&"; distance:0; fast_pattern;
Raw source ET MALWARE MICROPSIA CnC Checkin M2 · 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 MICROPSIA CnC Checkin M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.request_body;
    content:"D5wdnvX3A="; startswith;
    content:"&WgJEo7TIB=c2xsZ3JhdA&"; distance:0; fast_pattern;
    reference:md5,bbe4dddc09dcef160db0fd4c24c4f052;
    reference:url,about.fb.com/wp-content/uploads/2021/04/Technical-threat-report-Arid-Viper-April-2021.pdf;
    classtype:command-and-control;
    sid:2032821; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_04_23, deployment Perimeter, malware_family MICROPSIA, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_23;
)

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