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Vulnerabilities / Threats

10/10/2013
06:39 AM
John H. Sawyer
John H. Sawyer
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Creating And Maintaining A Custom Threat Profile

Threat intelligence is only useful if it's tailored to your specific organization. Here are some tips on how to customize

[The following is excerpted from "Creating and Maintaining a Custom Threat Profile," a new report posted this week on Dark Reading's Threat Intelligence Tech Center.]

Security researchers and vendors are developing a wealth of new data on threats and exploits in the wild. Organizations can tap into this data through the use of threat intelligence feeds, but all too often these feeds are served up in a generic fashion -- identical for all customers, no matter what their industry, size, location or other distinguishing characteristics.

What enterprises need is threat intelligence that is relevant and actionable, which requires not only a prioritization model but also deep knowledge of the systems and data that must be protected in the first place -- and at what cost.

There are numerous sources and types of threat intelligence feeds. Some are internally sourced, while others come from external third parties and are part of a subscription service.

The information available also varies widely based on the vendor providing the service. It may be directly downloadable into a security information and event management (SIEM) product, or it may come in the form of detailed reports that are harder to parse and act on immediately. In any case, the purpose is the same: to provide data that enables a company to make quick and informed decisions about threats against their assets.

It's important to keep in mind that not all threat intelligence feeds are created equal. The average feed will include reputation-based data such as known bad IP addresses, domain names, spam sources and active attackers. That information may be simply a regurgitation of data a vendor received from another source, or a vendor may vet the data to ensure its accuracy before providing it to customers. Clearly, the latter is the preferred model.

And not all intelligence comes in for the form of a "feed." Detailed threat reports are valuable for learning more about specific attacker groups or types of attacks. These reports come in either a long, detailed document form for investigators or in an executive summary-style format for getting management up to speed on active threats. The detailed versions can include identifiable characteristics for determining if particular attacker groups have compromised systems, but they need to be read in detail and parsed for information that is actionable.

Another distinguishing factor is the degree to which intelligence data is tailored to the customer. Some intelligence feeds come as a generic set of information that is delivered to all customers, regardless of their size or what industry they are in. Depending on the vendor, there may be options for customizing data based on industry and technologies in use by the customer.

Joe Magee, CTO of threat intelligence services provider Vigilant, explained to Dark Reading that it's often this value-added prefiltering, validation and customization of information that sets vendors apart. Instead of simply providing a data feed, a provider should work closely with customers to determine what intelligence data is important, customize what is delivered and ensure that it's integrated into the customer's security information and event management (SIEM) system, Magee says. The SIEM itself can be on site at the customer's facility and managed remotely, or part of its cloud-based service.

One very big problem that many companies face is that they don't fully understand the threats against their organizations. Creating a threat profile is a key step in understanding what threats a company faces and the potential impact if an attack were to be successful. A threat profile can also help companies prioritize resources in order to successfully defend sensitive data.

To learn more about how to build a customized threat profile -- and how to use it to prioritize security tasks and measure security risk -- download the free report.

Have a comment on this story? Please click "Add a Comment" below. If you'd like to contact Dark Reading's editors directly, send us a message.

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sspinola21ct
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sspinola21ct,
User Rank: Apprentice
10/16/2013 | 7:09:17 PM
re: Creating And Maintaining A Custom Threat Profile
Great article John. Of course, threat feeds cost money, and gaining relevant and actionable intelligence from them is difficult and time-consuming (for the reasons you state and more) so security teams have a hard time proving their value as it is. Customized feeds will cost even more, so pitching management on them may be a hard sell. One way to gain additional value from the feeds you already have is to combine them with other data you already collect (such as NetFlow and HTTP metadata) to see not only connections to known bad IP addresses identified in the feeds, but also the before, the after, and any contextual behaviors that ultimately show you information well beyond the original threat feed. This approach reduces time-to-detection and remediation (and thus increases the business value of the feeds). That could provide the ammunition an organizations needs to encourage management to "upgrade" to more customized feeds.
anon6368133649
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anon6368133649,
User Rank: Apprentice
10/10/2013 | 4:12:33 PM
re: Creating And Maintaining A Custom Threat Profile
Thanks for the great read! However, the link to the free report seems incomplete.
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