ET MALWARE SharpExec EXE Lateral Movement Tool Downloaded

Query · suricata

flow:established,to_client;
file_data;
content:"MZ"; within:2;
byte_jump:4,58,relative,little;
content:"PE|00 00|"; distance:-64; within:4;
content:"|00|S|00|h|00|a|00|r|00|p|00|E|00|x|00|e|00|c|00 2e 00|e|00|x|00|e|00 20|"; distance:0; fast_pattern;
content:"M|00|y|00|P|00|@|00|s|00|s|00|w|00|0|00|r|00|d"; distance:0;
Raw source ET MALWARE SharpExec EXE Lateral Movement Tool Downloaded · 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 SharpExec EXE Lateral Movement Tool Downloaded";
    flow:established,to_client;
    file_data;
    content:"MZ"; within:2;
    byte_jump:4,58,relative,little;
    content:"PE|00 00|"; distance:-64; within:4;
    content:"|00|S|00|h|00|a|00|r|00|p|00|E|00|x|00|e|00|c|00 2e 00|e|00|x|00|e|00 20|"; distance:0; fast_pattern;
    content:"M|00|y|00|P|00|@|00|s|00|s|00|w|00|0|00|r|00|d"; distance:0;
    reference:url,github.com/anthemtotheego/SharpExec;
    classtype:trojan-activity;
    sid:2029574; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_03_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_03_04;
)

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