Techniques › T1525
T1525 Implant Internal Image
persistence — IaaS, Containers · attack.mitre.org · JSON
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MITRE detection strategy
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analytics
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Sigma rules tagged attack.t1525
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KEV CVEs mapped here
<p>Adversaries may implant cloud or container images with malicious code to establish persistence after gaining access to an environment. Amazon Web Services (AWS) Amazon Machine Images (AMIs), Google Cloud Platform (GCP) Images, and Azure Images as well as popular container runtimes such as Docker can be implanted or backdoored. Unlike Upload Malware, this technique focuses on adversaries implanting an image in a registry within a victim’s environment. Depending on how the infrastructure is provisioned, this could provide persistent access if the infrastructure provisioning tool is instructed to always use the latest image.</p><p>A tool has been developed to facilitate planting backdoors in cloud container images. If an adversary has access to a compromised AWS instance, and permissions to list the available container images, they may implant a backdoor such as a Web Shell.</p>
KEV CVEs mapped to this technique · CTID Mappings Explorer
None. No KEV entry in the public mapping names this technique. Given that 74.7% of KEV has no mapping at all, this says more about the mapping than about the technique.
Detection strategy · ATT&CK Enterprise v19.2
- DET0334 Detection Strategy for T1525 – Implant Internal Image v1.0
AN0946 ContainersImplantation of malicious code into container images followed by registry push and use in new deployments.docker:daemon
docker build or docker commit commands followed by docker push to internal registry→ DC0015 Image Creationdocker:registrypush event of new image version from unrecognized user or context→ DC0036 Image ModificationTunable:TimeWindowUserContextRegistryNameRegexAN0947 IaaSCreation or modification of cloud virtual machine images (AMIs, custom images) with persistence mechanisms, followed by infrastructure provisioning that uses these implanted images.Tunable:IAMRoleImageTagRegexLaunchWindow
Sigma rules · SigmaHQ da9bb07d64, tag attack.t1525
Author: Darin Smith
· 2022-06-07 (modified 2023-04-24) · logsource: product=aws service=cloudtrail · b94bf91e-c2bf-4047-9c43-c6810f43baad
Detects when an Elastic Container Service (ECS) Task Definition includes a command to query the credential endpoint.
This can indicate a potential adversary adding a backdoor to establish persistence or escalate privileges.