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Rev: 2 • Mar 21, 2022, 12:00 PMET MALWARE Suspected Mustang Panda APT Related Activity (GET)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspected Mustang Panda APT Related Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/newtap.css"; fast_pattern; endswith; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; http.header_names; content:!"Referer"; content:!"User-Agent"; reference:url,twitter.com/StillAzureH/status/1505823479945625604; reference:md5,4a9b98832ba5c2b74f80dadd16b8a079; classtype:trojan-activity; sid:2035551; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_03_21, deployment Perimeter, confidence Medium, signature_severity Major, tag TA416, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_12;)
Mar 21, 2022, 12:00 PM
Jul 12, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 4, 2025, 9:34 PM
rules/emerging-malware.rules