ET MALWARE W2KM_BARTALEX Downloading Payload M2

Query · suricata

flow:established,from_server;
flowbits:isset,ET.BARTALEX;
content:"text/plain|0d 0a 0d 0a|http"; fast_pattern;
http.stat_code;
content:"200";
file.data;
content:"http"; within:4;
pcre:"/^s?\x3a\x2f+[^\r\n\s]+\.exe/Ri";

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET MALWARE W2KM_BARTALEX Downloading Payload M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE W2KM_BARTALEX Downloading Payload M2";
    flow:established,from_server;
    flowbits:isset,ET.BARTALEX;
    content:"text/plain|0d 0a 0d 0a|http"; fast_pattern;
    http.stat_code;
    content:"200";
    file.data;
    content:"http"; within:4;
    pcre:"/^s?\x3a\x2f+[^\r\n\s]+\.exe/Ri";
    classtype:trojan-activity;
    sid:2021532; rev:4;
    metadata:created_at 2015_07_24, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_01;
)

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