alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE OSX/OceanLotus / ELF/RotaJakario CnC Checkin"; flow:established,to_server; content:"|41 61 54 03|"; offset:1; depth:4; fast_pattern; content:"|63 63 63 63 63 63 63 63|"; distance:0; reference:url,researchcenter.paloaltonetworks.com/2017/06/unit42-new-improved-macos-backdoor-oceanlotus/; reference:url,blog.netlab.360.com/stealth_rotajakiro_backdoor_en; classtype:targeted-activity; sid:2024425; rev:1; metadata:affected_product Mac_OSX, affected_product Linux, attack_target Client_Endpoint, created_at 2017_06_26, deployment Perimeter, malware_family OceanLotus, performance_impact Low, confidence Medium, signature_severity Major, tag Targeted, tag APT, tag OceanLotus, tag OSX, updated_at 2019_07_26;)