Rule History

alert tcp-pkt $EXTERNAL_NET 1024: -> $HOME_NET any (msg:"ET MALWARE Win32/CrimsonRAT Variant Sending Command M2 (inbound)"; flow:established,to_client; dsize:<20; content:"|67 65 74 32 61 76 73 3d 61 76 70 72 6f|"; fast_pattern; endswith; reference:md5,9bb081fb563b2905ea52e4b858d392ed; classtype:trojan-activity; sid:2035599; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_03_24, deployment Perimeter, malware_family TransparentTribe, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_16;)