alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/Ropest.H CnC - INBOUND set"; flow:established,from_server; content:"|28 00 00 00 00 01 00 00|"; depth:8; flowbits:set,ET.Zberp; flowbits:noalert; reference:md5,a0d843b52e33ba4f1dc72f5a28729806; classtype:command-and-control; sid:2025068; rev:1; metadata:created_at 2014_10_30, malware_family Win32_Ropest_H, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)