The Cisco IOS XE web interface on the remote host is likely compromised.
Binary data cisco_ios_xe_implant_CVE-2023-20198.nbin
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20198
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20273
www.nessus.org/u?3f350d3d
www.nessus.org/u?c9f7676c