ET EXPLOIT_KIT Spelevo VBS Payload Downloaded

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"&00000111&11"; fast_pattern; endswith;
http.content_len;
byte_test:0,=,0,0,string,dec;
http.header_names;
content:"|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a|Cookie|0d 0a 0d 0a|"; depth:49;
Raw source ET EXPLOIT_KIT Spelevo VBS Payload 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT_KIT Spelevo VBS Payload Downloaded";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"&00000111&11"; fast_pattern; endswith;
    http.content_len;
    byte_test:0,=,0,0,string,dec;
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a|Cookie|0d 0a 0d 0a|"; depth:49;
    classtype:exploit-kit;
    sid:2028865; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_10_18, deployment Perimeter, malware_family Spelevo_EK, signature_severity Major, tag Spelevo_EK, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_09;
)

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