ET MALWARE SluttyPutty isDebuggerPresent in Fake Putty Executable

Query · suricata

flow:established,to_client;
file_data;
content:"|4d 5a|"; depth:2;
content:"https://www.chiark.greenend.org.uk/~sgtatham/putty/"; fast_pattern;
content:"IsDebuggerPresent";
Raw source ET MALWARE SluttyPutty isDebuggerPresent in Fake Putty Executable · 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 SluttyPutty isDebuggerPresent in Fake Putty Executable";
    flow:established,to_client;
    file_data;
    content:"|4d 5a|"; depth:2;
    content:"https://www.chiark.greenend.org.uk/~sgtatham/putty/"; fast_pattern;
    content:"IsDebuggerPresent";
    reference:md5,b0dd930c652d1b9350b7c8a29e798cd5;
    classtype:trojan-activity;
    sid:2030382; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_06_23, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_23;
)

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