Rule History

alert tcp $HOME_NET any -> $EXTERNAL_NET 16052 (msg:"ET MALWARE Win64/Spy.Agent.EU CnC Checkin"; flow:established,to_server; content:"|28 0f 00 00 31 00 32 00 33 00 34 00 35 00 36 00 00 00 03 00|"; startswith; fast_pattern; content:"|00 0a 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00|"; distance:0; reference:md5,b3d7480ac748ce375ee8f84f656222a1; classtype:command-and-control; sid:2037953; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_08_04, deployment Perimeter, malware_family Win64_Spy_Agent_EU, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_04;)