ET HUNTING Microsoft Office Memory Corruption (CVE-2015-1641)

alert tcp any any -> $HOME_NET any (
    msg:"ET HUNTING Microsoft Office Memory Corruption (CVE-2015-1641)";
    flow:established,to_client;
    file.data;
    content:"|7b 5c|rtf";
    content:"|7b 5c 2a 5c|objdata|20|0105000002000000";
    content:"6f746b6c6f6164722e5752417373656d626c792e3100"; fast_pattern; nocase; distance:8;
    content:"d0cf11e0a1b11ae1"; nocase; distance:0;
    content:"|7c 34 24 04|";
    reference:url,degsew.wordpress.com/2016/03/28/new-microst-office-word-2007-2013-exploit-cve-2015-1641-analysis/;
    reference:cve,2015-1641;
    classtype:bad-unknown;
    sid:2059680; rev:1;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_01_27, cve CVE_2015_1641, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2025_01_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;
    target:dest_ip;
)