ET MALWARE Bad PDF Editor Tamperedchef Payload Request


Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/AppSuites-PDF-"; startswith; fast_pattern;
pcre:"/^(?:\d{1,2}\x2e){1,4}\d/R";
content:"|2e|exe"; endswith; within:5;
target:src_ip;
Raw source ET MALWARE Bad PDF Editor Tamperedchef Payload Request · 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 Bad PDF Editor Tamperedchef Payload Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/AppSuites-PDF-"; startswith; fast_pattern;
    pcre:"/^(?:\d{1,2}\x2e){1,4}\d/R";
    content:"|2e|exe"; endswith; within:5;
    reference:url,www.truesec.com/hub/blog/tamperedchef-the-bad-pdf-editor;
    classtype:trojan-activity;
    sid:2065100; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_10_08, deployment Perimeter, malware_family Tamperedchef, confidence High, signature_severity Critical, tag c2, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_08, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)

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