SMTP server on a strange port High Medium Low Network Vulnerabilities Malware SMTP server on a strange port SummaryThis SMTP server is running on a non standard port. This might be a backdoor set up by crackers to send spam or even control your machine. SolutionCheck and clean your configuration Severity Classification CVSS Base Score: 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N Related Vulnerabilities F-Secure Products Malware Detection Bypass Vulnerability (Win)IIS Possible CompromiseSMTP server on a strange portJRun Sample FilesF-Secure Products Security Bypass Vulnerability (Linux)