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File Download Detected via Defend for Containers

This rule detects the download of files from inside a container. The files are downloaded using the "curl" or "wget" command-line tools. Adversaries may use these tools to download files from the internet to gain…

Description

This rule detects the download of files from inside a container. The files are downloaded using the "curl" or "wget" command-line tools. Adversaries may use these tools to download files from the internet to gain access to sensitive data or communicate with C2 servers.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

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Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.

Log source category
event_index

Known benign triggers

  • There is a potential for false positives if the files are downloaded for legitimate purposes, such as debugging or troubleshooting, or if the files are downloaded from a known benign source. It is important to investigate any alerts generated by this rule to determine if they are indicative of malicious activity or part of legitimate container activity.

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