ET MALWARE Perl CGI Web Shell (DSAUTOKEN) Activity Observed Inbound

Query · suricata

flow:established,to_server;
http.uri;
content:"data|3d|";
http.cookie;
content:"DSAUTOKEN|3d|af95380019083db5"; fast_pattern;
target:dest_ip;
Raw source ET MALWARE Perl CGI Web Shell (DSAUTOKEN) Activity Observed Inbound · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET MALWARE Perl CGI Web Shell (DSAUTOKEN) Activity Observed Inbound";
    flow:established,to_server;
    http.uri;
    content:"data|3d|";
    http.cookie;
    content:"DSAUTOKEN|3d|af95380019083db5"; fast_pattern;
    reference:url,blogs.jpcert.or.jp/en/2025/04/dslogdrat.html;
    classtype:trojan-activity;
    sid:2061885; rev:1;
    metadata:affected_product Ivanti, attack_target Server, created_at 2025_04_25, deployment Perimeter, deployment Internet, confidence High, signature_severity Major, updated_at 2025_04_25, mitre_tactic_id TA0003, mitre_tactic_name Persistence, mitre_technique_id T1505, mitre_technique_name Server_Software_Component;
    target:dest_ip;
)

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