Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Inveigh Proxy Powershell Script Retrieval (Inbound)"; flow:established,to_client; file.data; content:"function Invoke-Inveigh"; fast_pattern; content:".PARAMETER Challenge"; reference:url,github.com/Kevin-Robertson/Inveigh; classtype:bad-unknown; sid:2038707; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_09_01, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_01;)