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cloudtrail-alarms-full.cf.json
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cloudtrail-alarms-full.cf.json
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{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "AWS CloudTrail API Activity Alarm Template for CloudWatch Logs",
"Parameters" : {
"CloudTrailLogGroupName" : {
"Type" : "String",
"Default" : "CloudTrail/DefaultLogGroup",
"Description" : "Enter CloudWatch Logs log group name. Default is CloudTrail/DefaultLogGroup"
},
"AlarmNotificationTopic" : {
"Type": "String",
"Description": "SNS Notification Topic to send alarms to"
}
},
"Resources" : {
"SecurityGroupChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = AuthorizeSecurityGroupIngress) || ($.eventName = AuthorizeSecurityGroupEgress) || ($.eventName = RevokeSecurityGroupIngress) || ($.eventName = RevokeSecurityGroupEgress) || ($.eventName = CreateSecurityGroup) || ($.eventName = DeleteSecurityGroup) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "SecurityGroupEventCount",
"MetricValue": "1"
}
]
}
},
"SecurityGroupChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailSecurityGroupChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, update or delete a Security Group.",
"MetricName" : "SecurityGroupEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"NetworkAclChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = CreateNetworkAcl) || ($.eventName = CreateNetworkAclEntry) || ($.eventName = DeleteNetworkAcl) || ($.eventName = DeleteNetworkAclEntry) || ($.eventName = ReplaceNetworkAclEntry) || ($.eventName = ReplaceNetworkAclAssociation) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "NetworkAclEventCount",
"MetricValue": "1"
}
]
}
},
"NetworkAclChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailNetworkAclChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, update or delete a Network ACL.",
"MetricName" : "NetworkAclEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"GatewayChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = CreateCustomerGateway) || ($.eventName = DeleteCustomerGateway) || ($.eventName = AttachInternetGateway) || ($.eventName = CreateInternetGateway) || ($.eventName = DeleteInternetGateway) || ($.eventName = DetachInternetGateway) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "GatewayEventCount",
"MetricValue": "1"
}
]
}
},
"GatewayChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailGatewayChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, update or delete a Customer or Internet Gateway.",
"MetricName" : "GatewayEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"VpcChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = CreateVpc) || ($.eventName = DeleteVpc) || ($.eventName = ModifyVpcAttribute) || ($.eventName = AcceptVpcPeeringConnection) || ($.eventName = CreateVpcPeeringConnection) || ($.eventName = DeleteVpcPeeringConnection) || ($.eventName = RejectVpcPeeringConnection) || ($.eventName = AttachClassicLinkVpc) || ($.eventName = DetachClassicLinkVpc) || ($.eventName = DisableVpcClassicLink) || ($.eventName = EnableVpcClassicLink) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "VpcEventCount",
"MetricValue": "1"
}
]
}
},
"VpcChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailVpcChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, update or delete a VPC, VPC peering connection or VPC connection to classic.",
"MetricName" : "VpcEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"EC2InstanceChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = RunInstances) || ($.eventName = RebootInstances) || ($.eventName = StartInstances) || ($.eventName = StopInstances) || ($.eventName = TerminateInstances) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "EC2InstanceEventCount",
"MetricValue": "1"
}
]
}
},
"EC2InstanceChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailEC2InstanceChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, terminate, start, stop or reboot an EC2 instance.",
"MetricName" : "EC2InstanceEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"EC2LargeInstanceChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = RunInstances) && (($.requestParameters.instanceType = *.8xlarge) || ($.requestParameters.instanceType = *.4xlarge)) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "EC2LargeInstanceEventCount",
"MetricValue": "1"
}
]
}
},
"EC2LargeInstanceChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailEC2LargeInstanceChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, terminate, start, stop or reboot a 4x or 8x-large EC2 instance.",
"MetricName" : "EC2LargeInstanceEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"CloudTrailChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = CreateTrail) || ($.eventName = UpdateTrail) || ($.eventName = DeleteTrail) || ($.eventName = StartLogging) || ($.eventName = StopLogging) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "CloudTrailEventCount",
"MetricValue": "1"
}
]
}
},
"CloudTrailChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, update or delete a CloudTrail trail, or to start or stop logging to a trail.",
"MetricName" : "CloudTrailEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"ConsoleSignInFailuresMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = ConsoleLogin) && ($.errorMessage = \"Failed authentication\") }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "ConsoleSignInFailureCount",
"MetricValue": "1"
}
]
}
},
"ConsoleSignInFailuresAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailConsoleSignInFailuresV2",
"AlarmDescription" : "Alarms when an unauthenticated API call is made to sign into the console.",
"MetricName" : "ConsoleSignInFailureCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "3"
}
},
"AuthorizationFailuresMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.errorCode = \"*UnauthorizedOperation\") || ($.errorCode = \"AccessDenied*\") }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "AuthorizationFailureCount",
"MetricValue": "1"
}
]
}
},
"AuthorizationFailuresAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailAuthorizationFailuresV2",
"AlarmDescription" : "Alarms when an unauthorized API call is made.",
"MetricName" : "AuthorizationFailureCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"IAMPolicyChangesMetricFilter": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{($.eventName=DeleteGroupPolicy)||($.eventName=DeleteRolePolicy)||($.eventName=DeleteUserPolicy)||($.eventName=PutGroupPolicy)||($.eventName=PutRolePolicy)||($.eventName=PutUserPolicy)||($.eventName=CreatePolicy)||($.eventName=DeletePolicy)||($.eventName=CreatePolicyVersion)||($.eventName=DeletePolicyVersion)||($.eventName=AttachRolePolicy)||($.eventName=DetachRolePolicy)||($.eventName=AttachUserPolicy)||($.eventName=DetachUserPolicy)||($.eventName=AttachGroupPolicy)||($.eventName=DetachGroupPolicy)}",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "IAMPolicyEventCount",
"MetricValue": "1"
}
]
}
},
"IAMPolicyChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailIAMPolicyChangesV2",
"AlarmDescription" : "Alarms when an API call is made to change an IAM policy.",
"MetricName" : "IAMPolicyEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"RouteTableConfigChanges": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventName = CreateRoute) || ($.eventName = CreateRouteTable) || ($.eventName = ReplaceRoute) || ($.eventName = ReplaceRouteTableAssociation) || ($.eventName = DeleteRouteTable) || ($.eventName = DeleteRoute) || ($.eventName = DisassociateRouteTable) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "RouteTableEventCount",
"MetricValue": "1"
}
]
}
},
"RouteTableConfigChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CloudTrailRouteTableChangesV2",
"AlarmDescription" : "Alarms when an API call is made to create, update or delete a Route Table.",
"MetricName" : "RouteTableEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"CMKChanges": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventSource = kms.amazonaws.com) && (($.eventName = DisableKey) || ($.eventName = ScheduleKeyDeletion)) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "CMKEventCount",
"MetricValue": "1"
}
]
}
},
"CMKChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "CMKChangesV2",
"AlarmDescription" : "Alarms each time when a CMK configuration change is made.",
"MetricName" : "CMKEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"RootAccountUsage": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ $.userIdentity.type = Root && $.userIdentity.invokedBy NOT EXISTS && $.eventType != AwsServiceEvent }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "RootAccountUsageEventCount",
"MetricValue": "1"
}
]
}
},
"RootAccountUsageAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "RootAccountUsageAlarmV2",
"AlarmDescription" : "Alarms each time when Root Account is used.",
"MetricName" : "RootAccountUsageEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"AWSConfigChanges": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventSource = config.amazonaws.com) && (($.eventName = StopConfigurationRecorder)||($.eventName = DeleteDeliveryChannel)||($.eventName = PutDeliveryChannel)||($.eventName = PutConfigurationRecorder)) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "ConfigEventCount",
"MetricValue": "1"
}
]
}
},
"AWSConfigChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "AWSConfigChangesAlarmV2",
"AlarmDescription" : "Triggered by AWS Config changes.",
"MetricName" : "ConfigEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"S3BucketConfigChanges": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventSource = s3.amazonaws.com) && (($.eventName = PutBucketAcl) || ($.eventName = PutBucketPolicy) || ($.eventName = PutBucketCors) || ($.eventName = PutBucketLifecycle) || ($.eventName = PutBucketReplication) || ($.eventName = DeleteBucketPolicy) || ($.eventName = DeleteBucketCors) || ($.eventName = DeleteBucketLifecycle) || ($.eventName = DeleteBucketReplication)) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "S3BucketEventCount",
"MetricValue": "1"
}
]
}
},
"S3BucketConfigChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "S3BucketConfigChangesAlarmV2",
"AlarmDescription" : "Triggered by AWS S3 Bucket config changes.",
"MetricName" : "S3BucketEventCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"ConsoleSignInWithoutMfaCount": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ $.eventName = ConsoleLogin && $.additionalEventData.MFAUsed = No }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "ConsoleSignInWithoutMfaCount",
"MetricValue": "1"
}
]
}
},
"ConsoleSignInWithoutMfaAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "ConsoleSignInWithoutMfaAlarmV2",
"AlarmDescription" : "Triggered by sign-in requests made without MFA.",
"MetricName" : "ConsoleSignInWithoutMfaCount",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
},
"OrganizationsChanges": {
"Type": "AWS::Logs::MetricFilter",
"Properties": {
"LogGroupName": { "Ref" : "CloudTrailLogGroupName" },
"FilterPattern": "{ ($.eventSource = organizations.amazonaws.com) && ($.eventName = AcceptHandshake) || ($.eventName = AttachPolicy) || ($.eventName = CancelHandshake) || ($.eventName = CreateAccount) || ($.eventName = CreateOrganization) || ($.eventName = CreateOrganizationalUnit) || ($.eventName = CreatePolicy) || ($.eventName = DeclineHandshake) || ($.eventName = DeleteOrganization) || ($.eventName = DeleteOrganizationalUnit) || ($.eventName = DeletePolicy) || ($.eventName = EnableAllFeatures) || ($.eventName = EnablePolicyType) || ($.eventName = InviteAccountToOrganization) || ($.eventName = LeaveOrganization) || ($.eventName = DetachPolicy) || ($.eventName = DisablePolicyType) || ($.eventName = MoveAccount) || ($.eventName = RemoveAccountFromOrganization) || ($.eventName = UpdateOrganizationalUnit) || ($.eventName = UpdatePolicy) }",
"MetricTransformations": [
{
"MetricNamespace": "CloudTrailMetrics",
"MetricName": "OrganizationsEvents",
"MetricValue": "1"
}
]
}
},
"OrganizationsChangesAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmName" : "OrganizationsChangesAlarmV2",
"AlarmDescription" : "Triggered by AWS Organizations events.",
"MetricName" : "OrganizationsEvents",
"Namespace" : "CloudTrailMetrics",
"ComparisonOperator" : "GreaterThanOrEqualToThreshold",
"EvaluationPeriods" : "1",
"Period" : "300",
"Statistic" : "Sum",
"Threshold" : "1"
}
}
}
}