Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/Spy.Agent.OHT - AnunakAPT HTTP Checkin Response 2"; flow:established,to_client; flowbits:isset,ET.Anunanak.HTTP.2; http.header; content:"Content-Length|3a 20|9|0d 0a|"; file.data; content:"no result"; fast_pattern; reference:url,fox-it.com/en/files/2014/12/Anunak_APT-against-financial-institutions2.pdf; classtype:targeted-activity; sid:2020030; rev:5; metadata:created_at 2014_12_23, malware_family Win32_Spy_Agent_OHT, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_27, reviewed_at 2023_09_27;)