alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Parallax CnC Response Activity M7"; flow:established,to_client; content:"|5e 52 4a 3b|"; startswith; fast_pattern; content:"|11 7f b6|"; distance:1; within:4; flowbits:isset,ET.Parallax-7; reference:url,twitter.com/malwrhunterteam/status/1227196799997431809; classtype:command-and-control; sid:2029456; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2020_02_14, malware_family Parallax, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_02_14;)