Rule History

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Parallax CnC Response Activity M16"; flow:established,to_client; content:"|a0 cd 78 e6|"; startswith; fast_pattern; content:"|ff fc 36|"; distance:1; within:3; flowbits:isset,ET.Parallax-16; reference:md5,36439a5f029df1777b51a34bd454b9d2; classtype:command-and-control; sid:2034433; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_11, deployment Perimeter, malware_family Parallax, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_11;)