ET MALWARE TA422 Related Activity M4

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/execdwn.php?id="; startswith; fast_pattern;
pcre:"/^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}/R";
flowbits:set,ET.TA422.Mockingbird;
target:src_ip;

Rule dependencies

Feeds into

  • 1 rule read ET.TA422.Mockingbird · view all
Raw source ET MALWARE TA422 Related Activity M4 · 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 TA422 Related Activity M4";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/execdwn.php?id="; startswith; fast_pattern;
    pcre:"/^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}/R";
    flowbits:set,ET.TA422.Mockingbird;
    classtype:trojan-activity;
    sid:2049287; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, created_at 2023_11_16, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_22, reviewed_at 2025_07_14, former_sid 2855827;
    target:src_ip;
)

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.