ET MALWARE TA402/Molerats Related VBS Retrieval

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/xx/f_Skoifa.vbs"; fast_pattern; bsize:16;
http.user_agent;
content:"Mozilla/4.0|20|(compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)"; bsize:57;
Raw source ET MALWARE TA402/Molerats Related VBS Retrieval · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE TA402/Molerats Related VBS Retrieval";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/xx/f_Skoifa.vbs"; fast_pattern; bsize:16;
    http.user_agent;
    content:"Mozilla/4.0|20|(compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)"; bsize:57;
    reference:url,www.cadosecurity.com/post/threat-group-uses-voice-changing-software-in-espionage-attempt;
    reference:md5,27d85a6aff129deb07048a735de1c884;
    classtype:trojan-activity;
    sid:2032530; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_04_07, deployment Perimeter, malware_family Molerats, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_07;
)

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