alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [PTsecurity] Bladabindi/njRAT (Dd19271927)"; flow:established,to_server; content:"|00|llDd19271927"; fast_pattern; offset:2; depth:14; dsize:<512; reference:md5,18fcc5f04f74737ca8a3fcf65a45629c; classtype:trojan-activity; sid:2025077; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_11_28, deployment Perimeter, malware_family njrat, performance_impact Moderate, confidence Medium, signature_severity Major, updated_at 2019_07_26;)