Rule History

alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET 1024: (msg:"ET MALWARE Win32/CrimsonRAT Variant Sending System Information (outbound)"; flow:established,to_server; dsize:<120; content:"|69 6e 73 35 66 6f 3d 75 73 66 73 65 72 3b|"; fast_pattern; depth:20; reference:md5,9bb081fb563b2905ea52e4b858d392ed; classtype:trojan-activity; sid:2035600; 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;)