ET MALWARE PS1Loader Encoded Profiling POST

Query · suricata

flow:established,to_server;
http.request_line;
content:"POST /c/"; startswith; fast_pattern;
http.user_agent;
content:"WindowsPowerShell";
http.request_body;
content:"ps="; startswith;
content:"&magic="; distance:0;
content:"&domain="; distance:0;
content:"&systeminfo="; distance:0;
Raw source ET MALWARE PS1Loader Encoded Profiling POST · 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 PS1Loader Encoded Profiling POST";
    flow:established,to_server;
    http.request_line;
    content:"POST /c/"; startswith; fast_pattern;
    http.user_agent;
    content:"WindowsPowerShell";
    http.request_body;
    content:"ps="; startswith;
    content:"&magic="; distance:0;
    content:"&domain="; distance:0;
    content:"&systeminfo="; distance:0;
    reference:md5,946f19e1af51a042aea63a9e8ce8ce63;
    classtype:trojan-activity;
    sid:2044345; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_02_24, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_24;
)

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.