ET MALWARE Java EXE Download by Vulnerable Version - Likely Driveby

Query · suricata

flowbits:isset,ET.http.javaclient.vulnerable;
flow:established,to_client;
content:"|0d 0a 0d 0a|MZ";
byte_jump:4,58,relative,little;
content:"PE|00 00|"; distance:-64; within:4;
threshold:type limit,track by_src,count 1,seconds 3;

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 Java EXE Download by Vulnerable Version - Likely Driveby · Suricata
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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 Java EXE Download by Vulnerable Version - Likely Driveby";
    flowbits:isset,ET.http.javaclient.vulnerable;
    flow:established,to_client;
    content:"|0d 0a 0d 0a|MZ";
    byte_jump:4,58,relative,little;
    content:"PE|00 00|"; distance:-64; within:4;
    threshold:type limit,track by_src,count 1,seconds 3;
    classtype:trojan-activity;
    sid:2013036; rev:7;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2011_06_16, deployment Perimeter, confidence Medium, signature_severity Major, tag DriveBy, updated_at 2019_07_26;
)

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