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Then it changes the thread score of the file based on the new findings and generates automatic retrospective notifications.

Thread Grid could detect malicious activity by a sandboxed file hours after it was first detonated. Retrospection - Information about files is maintained and re-evaluated long after a file is downloaded by a host.Keep in mind that Thread Grid requires a separate account. Then ThreadGrid reports the score to the AMP cloud so that the next time the file is encountered, it's treated accordingly. During detonation, the sandbox captures hundreds of indicators of the behavior of the file, then gives an overall thread score from 1 through 100 (lower is better). File Analysis - If File Analysis is configured in the AMP policy, the edge router sends the file to ThreadGrid for detonation in a sandbox VM.

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The router allows the file download to complete and, depending on the config, sends the file for analysis. Unknown - the scariest scenario for security engineers is when the AMP cloud responds that the file is unknown.Clean - if the AMP cloud responds that the file is "clean," the router allows the file download to complete.The WAN edge router decides whether or not to allow the file download based on the following three responses by the AMP cloud:.The AMP cloud matches the SHA256 hash against the context-rich malware database and responds back with a file reputation score.

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If the hash does not match an entry in the local cache, the router sends the hash plus a context to the AMP cloud for further identification.

The Snort engine computes the SHA256 hash for the requested file and makes a local cache lookup to decide whether the hash is known to be clean or malicious.

The router sends the file to the Snort file pre-processor for identification.

When the router detects a file download, it performs the following actions, as shown in figure 1 above: When an AMP security policy is enabled on an edge router, it intercepts file downloads. Advanced Malware Protection (AMP) Overview How AMP works? The service detonates unknown files in a sandboxing environment and then analyzes their behavior against millions of samples and malware indicators.įigure 1 illustrates a high overview of the Advanced Malware Protection (AMP) process on a WAN edge router.

Secure Malware Analytics (formerly known as Threat Grid) - a unified security solution that provides thread intelligence and advanced sandboxing.

The knowledge-based service is provided by Cisco Talos, which is one of the largest and most trusted commercial cybersecurity providers in the world.

AMP Cloud - a context-rich malware database that provides information about encountered files based on millions of samples across thousands of customers.

AMP uses the Snort engine running on edge routers and leverages two cloud-based security services: Cisco SD-WAN Advanced Malware Protection (AMP) is a security service that allows edge routers to inspect file downloads and detect, contain, and remove malware in real-time.