ET MALWARE APT28/SkinnyBoy Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.user_agent;
content:"Opera"; bsize:5;
http.request_body;
content:"id="; startswith;
content:"#"; distance:0;
content:"#"; distance:0;
content:"&current="; distance:0; fast_pattern;
content:"&total="; distance:0;
content:"&data="; distance:0;
Raw source ET MALWARE APT28/SkinnyBoy Checkin · 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 APT28/SkinnyBoy Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"Opera"; bsize:5;
    http.request_body;
    content:"id="; startswith;
    content:"#"; distance:0;
    content:"#"; distance:0;
    content:"&current="; distance:0; fast_pattern;
    content:"&total="; distance:0;
    content:"&data="; distance:0;
    reference:url,cluster25.io/wp-content/uploads/2021/05/2021-05_FancyBear.pdf;
    classtype:command-and-control;
    sid:2033096; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_06_04, deployment Perimeter, malware_family SkinnyBoy, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_11;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.