ET NETBIOS PolarisOffice Insecure Library Loading - SMB ASCII

Query · suricata

flow:from_server;
content:"SMB"; offset:4; depth:5;
byte_test:1,!&,0x80,7,relative;
content:"puiframeworkproresenu|2E|dll"; nocase; distance:0; fast_pattern;
Raw source ET NETBIOS PolarisOffice Insecure Library Loading - SMB ASCII · 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 tcp $HOME_NET [445,139] -> any any (
    msg:"ET NETBIOS PolarisOffice Insecure Library Loading - SMB ASCII";
    flow:from_server;
    content:"SMB"; offset:4; depth:5;
    byte_test:1,!&,0x80,7,relative;
    content:"puiframeworkproresenu|2E|dll"; nocase; distance:0; fast_pattern;
    reference:cve,2018-12589;
    reference:url,exploit-db.com/exploits/44985;
    classtype:attempted-user;
    sid:2025790; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2018_07_06, cve CVE_2018_12589, deployment Perimeter, signature_severity Informational, updated_at 2021_09_09;
)

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