alert tcp-pkt $EXTERNAL_NET any -> $HOME_NET any (msg:"ET RETIRED Win32/Aurora Stealer WORK Command"; flow:to_client,established; dsize:5; content:"WORK|0a|"; reference:md5,875e34da7d4eaf4b93276025f840780c; classtype:trojan-activity; sid:2043198; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_01_03, deployment Perimeter, former_category MALWARE, malware_family Win32_Aurora, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_17, reviewed_at 2025_04_17;)