ET MALWARE Suspected APT32/Oceanlotus Maldoc CnC

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".png?";
content:"=e010000127"; distance:0; fast_pattern;
content:".exe|3b|"; nocase;
pcre:"/^[^\r\n]+\.exe(?:\x3b)?$/Ri";
Raw source ET MALWARE Suspected APT32/Oceanlotus Maldoc CnC · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Suspected APT32/Oceanlotus Maldoc CnC";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".png?";
    content:"=e010000127"; distance:0; fast_pattern;
    content:".exe|3b|"; nocase;
    pcre:"/^[^\r\n]+\.exe(?:\x3b)?$/Ri";
    reference:md5,e2511f009b1ef8843e527f765fd875a7;
    reference:md5,cc2027319a878ee18550e35d9b522706;
    reference:url,twitter.com/HONKONE_K/status/1290511333343993856;
    classtype:command-and-control;
    sid:2030652; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2020_08_05, deployment Perimeter, deployment SSLDecrypt, malware_family APT32, malware_family OceanLotus, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_10;
)

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