Versions (3)
Version DetailsCurrent
Rev: 1 • Oct 1, 2021, 12:00 PMET MALWARE Cobalt Strike Activity (GET)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Cobalt Strike Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/Home.aspx"; bsize:10; http.host; content:"www.funding-exchange.org"; bsize:24; fast_pattern; http.cookie; content:"ASP.NET_SessionId="; startswith; http.header_names; content:"Accept|0d 0a|Host|0d 0a|Accept-Encoding|0d 0a|DNT|0d 0a|Cache-Control|0d 0a|"; content:!"Referer"; reference:url,www.ptsecurity.com/ww-en/analytics/pt-esc-threat-intelligence/new-apt-group-chamelgang/; classtype:trojan-activity; sid:2034081; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_10_01, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2021_10_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)
Oct 1, 2021, 12:00 PM
Oct 1, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 21, 2024, 3:00 AM
rules/emerging-malware.rules