alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Generic CMD Remote Shell"; flow:established,to_server; content:"|00 00 00 13|CMD session opened|2e 00 00 00 01 00 00 00|qMicrosoft Windows"; startswith; fast_pattern; reference:md5,38e3ff2c1ad395cc854e2b620adc1a0f; classtype:trojan-activity; sid:2037255; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_01, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_07_01;)