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Rev: 1 • Dec 8, 2021, 12:00 PMET MALWARE APT15/NICKEL KETRUM CnC Activity (POST)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE APT15/NICKEL KETRUM CnC Activity (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/index.html?q="; startswith; fast_pattern; http.content_type; content:"application/x-www-form-urlencoded"; bsize:33; http.header_names; content:!"Referer"; content:"|0d 0a|Connection|0d 0a|Pragma|0d 0a|Content-Type|0d 0a|"; startswith; reference:md5,002267297066965505e5e2ea1db867b4; reference:url,www.microsoft.com/security/blog/2021/12/06/nickel-targeting-government-organizations-across-latin-america-and-europe; classtype:trojan-activity; sid:2034633; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_12_08, deployment Perimeter, malware_family APT15, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_08;)
Dec 8, 2021, 12:00 PM
Dec 8, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 8, 2025, 9:34 PM
rules/emerging-malware.rules