alert tcp $HOME_NET any -> $EXTERNAL_NET 443 (msg:"ET MALWARE Win32/HMR RAT Sending System Information M3"; flow:established,to_server; content:"|25 56 0a dc 16 07 be fe 2e 05 fd a7|"; fast_pattern; content:"|63 00 3a 00 5c 00|"; reference:md5,f49e3a53cb88905982491b7e88740f33; reference:md5,dfcbc4d4be5cd43c26b1729ddb936df3; reference:md5,1fd2ad44d8a2f124a01a5cc4f8282c01; reference:md5,711114867e22b9573614b72756466e5a; classtype:trojan-activity; sid:2044595; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_03_14, deployment Perimeter, malware_family Win32_HMR, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_14; target:src_ip;)