Malware Protection for EC2 finding types

GuardDuty Malware Protection for EC2 provides a single Malware Protection for EC2 finding for all threats detected during the scan of an EC2 instance or a container workload. The finding includes the total number of detections made during the scan, and based on the severity, provides details for the top 32 threats that it detects. Unlike other GuardDuty findings, Malware Protection for EC2 findings are not updated when the same EC2 instance or container workload is scanned again.

A new Malware Protection for EC2 finding is generated for each scan that detects malware. Malware Protection for EC2 findings include information about the corresponding scan that produced the finding as well as the GuardDuty finding that initiated this scan. This makes it easier to correlate the suspicious behavior with the detected malware.

Note

When GuardDuty detects malicious activity on a container workload, Malware Protection for EC2 doesn't generate an EC2 level finding.

The following findings are specific to GuardDuty Malware Protection for EC2.

Execution:EC2/MaliciousFile

A malicious file has been detected on an EC2 instance.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more malicious files on the listed EC2 instance within your AWS environment. This listed instance might be compromised. For more information, see Threats detected section in the findings' details.

Remediation recommendations:

If this activity is unexpected, your instance may be compromised. For more information, see Remediating a potentially compromised Amazon EC2 instance.

Execution:ECS/MaliciousFile

A malicious file has been detected on an ECS cluster.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more malicious files on a container workload that belongs to an ECS cluster. For more information, see Threats detected section in the findings' details.

Remediation recommendations:

If this activity is unexpected, your container belonging to the ECS cluster may be compromised. For more information, see Remediating a potentially compromised ECS cluster.

Execution:Kubernetes/MaliciousFile

A malicious file has been detected on an Kubernetes cluster.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more malicious files on a container workload that belongs to a Kubernetes cluster. If this is an EKS managed cluster, the findings details will provide additional information about the impacted EKS resource. For more information, see Threats detected section in the findings' details.

Remediation recommendations:

If this activity is unexpected, your container workload may be compromised. For more information, see Remediating EKS Audit Log Monitoring findings.

Execution:Container/MaliciousFile

A malicious file has been detected on a standalone container.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more malicious files on a container workload and no cluster information has been identified. For more information, see Threats detected section in the findings' details.

Remediation recommendations:

If this activity is unexpected, your container workload may be compromised. For more information, see Remediating a potentially compromised standalone container.

Execution:EC2/SuspiciousFile

A suspicious file has been detected on an EC2 instance.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more suspicious files on an EC2 instance. For more information, see Threats detected section in the findings' details.

SuspiciousFile type detections indicate that potentially unwanted programs such as adware, spyware, or dual use tools are present on an impacted resource. These programs could have a negative impact on your resource, or be used by attackers for malicious purposes. For example, networking tools can be used legitimately or maliciously by adversaries as hack tools to try and compromise resources.

When a suspicious file has been detected, evaluate whether you expect to see the detected file in your AWS environment. If the file is unexpected, follow the remediation recommendations provided in the next section.

Remediation recommendations:

If this activity is unexpected, your instance may be compromised. For more information, see Remediating a potentially compromised Amazon EC2 instance.

Execution:ECS/SuspiciousFile

A suspicious file has been detected on an ECS cluster.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more suspicious files on a container that belongs to an ECS cluster. For more information, see Threats detected section in the findings' details.

SuspiciousFile type detections indicate that potentially unwanted programs such as adware, spyware, or dual use tools are present on an impacted resource. These programs could have a negative impact on your resource, or be used by attackers for malicious purposes. For example, networking tools can be used legitimately or maliciously by adversaries as hack tools to try and compromise resources.

When a suspicious file has been detected, evaluate whether you expect to see the detected file in your AWS environment. If the file is unexpected, follow the remediation recommendations provided in the next section.

Remediation recommendations:

If this activity is unexpected, your container belonging to the ECS cluster may be compromised. For more information, see Remediating a potentially compromised ECS cluster.

Execution:Kubernetes/SuspiciousFile

A suspicious file has been detected on a Kubernetes cluster.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more suspicious files on a container that belongs to a Kubernetes cluster. If this is an EKS managed cluster, the findings' details will provide additional information about the impacted EKS. For more information, see Threats detected section in the findings' details.

SuspiciousFile type detections indicate that potentially unwanted programs such as adware, spyware, or dual use tools are present on an impacted resource. These programs could have a negative impact on your resource, or be used by attackers for malicious purposes. For example, networking tools can be used legitimately or maliciously by adversaries as hack tools to try and compromise resources.

When a suspicious file has been detected, evaluate whether you expect to see the detected file in your AWS environment. If the file is unexpected, follow the remediation recommendations provided in the next section.

Remediation recommendations:

If this activity is unexpected, your container workload may be compromised. For more information, see Remediating EKS Audit Log Monitoring findings.

Execution:Container/SuspiciousFile

A suspicious file has been detected on a standalone container.

Default severity: Varies depending on the detected threat.

• Feature: EBS Malware Protection

This finding indicates that the GuardDuty Malware Protection for EC2 scan has detected one or more suspicious files on a container with no cluster information. For more information, see Threats detected section in the findings' details.

SuspiciousFile type detections indicate that potentially unwanted programs such as adware, spyware, or dual use tools are present on an impacted resource. These programs could have a negative impact on your resource, or be used by attackers for malicious purposes. For example, networking tools can be used legitimately or maliciously by adversaries as hack tools to try and compromise resources.

When a suspicious file has been detected, evaluate whether you expect to see the detected file in your AWS environment. If the file is unexpected, follow the remediation recommendations provided in the next section.

Remediation recommendations:

If this activity is unexpected, your container workload may be compromised. For more information, see Remediating a potentially compromised standalone container.