alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE RLPacked Binary - Likely Hostile"; flow:from_server,established; content:"|2E 70 61 63 6B 65 64|"; content:"|2E 52 4C 50 61 63 6B|"; within:50; reference:url,rlpack.jezgra.net; reference:url,www.teamfurry.com/wordpress/2007/04/01/unpacking-rlpack/; classtype:trojan-activity; sid:2008285; rev:2; metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, updated_at 2019_07_26;)