Facebook Google Plus Twitter LinkedIn YouTube RSS Menu Search Resource - BlogResource - WebinarResource - ReportResource - Eventicons_066 icons_067icons_068icons_069icons_070

Searching for "Classified" Content in Documents

Classified Sensitive government and military organizations classify their documents with familiar terms like "TOP SECRET" and also less well known terms like "NOFORN" (which means the data can't be shared with any foreign nationals).

These terms and phrases are usually placed in the headers and footers of every page in electronic documents. Most organizations that deal with extremely sensitive data have mandatory requirements for documents to be labeled according to their classification levels.

Nessus Direct Feed users can scan network servers for these types of documents with a new audit policy available on the Tenable Support Portal. The "Classified Documents" .audit file searches Word and Adobe files for many common keywords used in the US government and NATO to indicate the classification level of the document.

Modifying the policy to audit for specific code words is also very simple. Below is an example simple search for the word "TOP SECRET":

<item>
        type: FILE_CONTENT_CHECK
        description: "Server is hosting TOP SECRET level documents"
        file_extension: "pdf" | "doc"
        regex: "TOP SECRET"
        expect: "TOP SECRET"
    max_size : "3k"
</item>

Often, classified programs receive their own codeword. Documents from a program named "TENABLE" would be labeled "TOP SECRET TENABLE". If we wanted to modify the default policy "TOP SECRET" policy to look for two or more specific program code we could run an audit with this type of logic:

<item>
        type: FILE_CONTENT_CHECK
        description: "Server is hosting TS codeword level documents"
        file_extension: "pdf" | "doc"
        regex: "TOP SECRET (NESSUS|TENABLE|UFO|ELVIS)"
        expect: "TOP SECRET"
    max_size : "3k"
</item>

The new regular expression would look for documents from the various programs named NESSUS, TENABLE, UFO and ELVIS. 

To learn more about how countries around the world classify their sensitive data, please read this Wikipedia entry. To learn more about the Nessus Direct Feed, please visit our web site or consider watching one of the Nessus demonstration videos.

Subscribe to the Tenable Blog

Subscribe
Try for Free Buy Now

Try Tenable.io

FREE FOR 30 DAYS

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Sign up now.

Buy Tenable.io

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

65 assets

$2,275

Buy Now

Try for Free Buy Now

Try Nessus Professional Free

FREE FOR 7 DAYS

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy Nessus Professional

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy a multi-year license and save. Add Advanced Support for access to phone, email, community and chat support 24 hours a day, 365 days a year. Full details here.

Try for Free Buy Now

Try Tenable.io Web Application Scanning

FREE FOR 30 DAYS

Enjoy full access to our latest web application scanning offering designed for modern applications as part of the Tenable.io platform. Safely scan your entire online portfolio for vulnerabilities with a high degree of accuracy without heavy manual effort or disruption to critical web applications. Sign up now.

Buy Tenable.io Web Application Scanning

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

5 FQDNs

$3,578

Buy Now

Try for Free Contact Sales

Try Tenable.io Container Security

FREE FOR 30 DAYS

Enjoy full access to the only container security offering integrated into a vulnerability management platform. Monitor container images for vulnerabilities, malware and policy violations. Integrate with continuous integration and continuous deployment (CI/CD) systems to support DevOps practices, strengthen security and support enterprise policy compliance.

Buy Tenable.io Container Security

Tenable.io Container Security seamlessly and securely enables DevOps processes by providing visibility into the security of container images – including vulnerabilities, malware and policy violations – through integration with the build process.

Learn More about Industrial Security

Get a Demo of Tenable.sc

Please fill out the form below with your contact information and a sales representative will contact you shortly to schedule a demo. You may also include a short comment (limited to 255 characters). Please note that fields with asterisks (*) are mandatory.

Try for Free Contact Sales

Try Tenable Lumin

FREE FOR 30 DAYS

Visualize and explore your Cyber Exposure, track risk reduction over time and benchmark against your peers with Tenable Lumin.

Buy Tenable Lumin

Contact a Sales Representative to see how Lumin can help you gain insight across your entire organization and manage cyber risk.