Rule History

alert tcp-pkt any any -> $HOME_NET 21 (msg:"ET SCADA [nsacyber/ELITEWOLF] Schweitzer Engineering Laboratories SEL FTP Server Activity - Change working directory 2701"; flow:established,to_server; content:"CWD|20|"; content:"SEL-2701"; distance:0; within:10; fast_pattern; reference:url,github.com/nsacyber/ELITEWOLF; classtype:misc-activity; sid:2048670; rev:1; metadata:affected_product Schweitzer_Engineering_Laboratories_SEL_Series, attack_target ICS, created_at 2023_10_19, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Minor, updated_at 2023_10_19, reviewed_at 2024_10_02; target:src_ip;)