File Extension Search

.nessus File Extension

Developer: Tenable Network Security
File type: Scanner File
You're here because you have a file that has a file extension ending in .nessus. Files with the file extension .nessus can only be launched by certain applications. It's possible that .nessus files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .nessus file?

The NESSUS is a file extension known as Nessus Network Security Scanner File which was developed by Tenable Network Security. Nessus is a network vulnerability scanning application. Specifically, the data file format saves the results of a network security scan as well as the policies used for the performed scan. It enables the results from corporate or home network scans to be saved and imported for review. NESSUS files use XML formatting which means it is XML internally. It was introduced in Nessus 3.2, the reference format for the future. It contains the full context of the scan -- the actual policy used, the plugin set used, the list of the targets, and others. An updated .nessus file format (.nessus v2) is now available, for easier scan, import and export report data. Descriptions can now be split into different labels such as CVSS base scores, risk factors and more. Files in NESSUS format can be opened with Tenable Network Security Nessus in Microsoft Windows, Linux, and Mac OS platforms.

how to open a .nessus file?

Launch a .nessus file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .nessus file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .nessus files aren't yet associated with it. In this case, when you try to open a .nessus file, you can tell Windows which application is the correct one for that file. From then on, opening a  .nessus file will open the correct application. Click here to fix .nessus file association errors

applications that open a .nessus file

Tenable Network Security Nessus

Tenable Network Security Nessus

Tenable Network Security Nessus is a configuration and vulnerability assessment software that controls un-credentialed and credentialed scans; patch, configuration, and mobile managers; outside repositories; global threat information to protect and decrease risk in sensitive data and website reputation. Nessus also offers compliance auditing and extensive configuration wherein it checks for compliance and eliminates external audit findings and fines. It covers HIPAA/HITECH, PCI DSS, DISA STIGs, and NIST, routers, firewalls and virtualization. It also provides broad asset profiling and coverage, the program detects profiles and scans resources and numerous devices to leverage security and compliance in the network. That covers virtual host, devices, OSes, databases and Web apps. Tenable Network Security Nessus gives its key features such as scanning unlimited number of IPs, receiving daily updates that are over 50,000 configuration and vulnerability checks and downloading audit, compliance files and receiving software updates and support.

a word of warning

Be careful not to rename the extension on .nessus files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .nessus. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.
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