alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Gh0st Remote Access Trojan Encrypted Session To CnC Server"; flow:established,to_server; dsize:100<>300; content:"Gh0st"; depth:5; reference:url,www.scribd.com/doc/13731776/Tracking-GhostNet-Investigating-a-Cyber-Espionage-Network; reference:url,www.symantec.com/connect/blogs/inside-back-door-attack; classtype:command-and-control; sid:2013214; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2011_07_06, deployment Perimeter, malware_family Gh0st, malware_family PCRAT, signature_severity Critical, tag PCRAT, tag Gh0st, tag RAT, updated_at 2019_07_26;)