AWS VPC Flow
- Aparna Rr
- Aparna Rr
About the Device
A virtual private cloud (VPC) is a virtual network dedicated to your AWS account. You can launch your AWS resources, such as Amazon EC2 instances, into your VPC. Amazon VPC provides features like Security groups, Network access control lists (ACLs) and Flow logs. "VPC Flow Logs" is a feature that enables you to capture information about the IP traffic going to and from network interfaces in your VPC.
Device Information
Entity | Particulars |
|---|---|
Vendor Name | Amazon Web Services |
Product Name | VPC Flow |
Type of Device | Cloud |
Collection Method
Log Type | Ingestion label | Preferred Logging Protocol - Format | Log Collection Method | Data Source |
|---|---|---|---|---|
AWS VPC Flow | AWS_VPC_FLOW (Raw log telemetry) | API Pull | C2C - Storage C2C - Push | Feed management API | Google Security Operations | Google Cloud |
Device Configuration
Please follow the steps below to enable raw log telemetry.
Prerequisite:
To send logs to S3, S3 bucket is created. Please refer the following page to create a S3 bucket. Getting started with Amazon S3 - Amazon Simple Storage Service
To send logs to Amazon Firehose, stream is created. To create a stream, please refer Amazon Data Firehose to Chronicle: C2C-Push | Create Amazon Data Firehose . Please only refer this KB only for creating stream and Updating IAM role attached to Firehose Stream. No Eventbridge rule is required.
Creation of flow logs for network interface, subnets and VPCs
After you have created and configured your Amazon S3 bucket, you can create flow logs for your network interfaces, subnets, and VPCs.
To create a flow log for a network interface:
Open the Amazon EC2 console
In the navigation pane, choose Network Interfaces
Select one or more network interfaces
Choose Actions, Create flow log
Configure the flow log settings [Please see, Step 4]
To create a flow log for a subnet:
Open the Amazon VPC console
In the navigation pane, choose Subnets.
Select one or more subnets.
Choose Actions, Create flow log.
Configure the flow log settings [Please see, Step 4]
To create a flow log for a VPC:
Open the Amazon VPC console
In the navigation pane, choose your VPCs.
Select one or more VPCs.
Choose Actions, Create flow log.
Configure the flow log settings [Please see, Step 4]
To configure flow log settings:
Select All in Filter
b. Select 1 minute for Maximum aggregation interval
c. Select Send to an S3 bucket or Send to Amazon Data Firehose for Destination.
d. Based on your selection, Provide S3 bucket ARN or select Amazon Firehose stream name from dropdown [Please see, prerequisites]
e. Select AWS default format
If you want to use Custom format, you can also use that, but the format should be in below mentioned sequential order. Both log formats are supported by Adaptive MxDR.
f. Select Text (default) in Log file format
g. Don’t enable Hive-compatible S3 prefixes
h. Select Every 1 hour (60 mins) in partition logs by time.
i. To add a tag to the flow log [optional config] - if you want to add a tag, select Add new tag and specify the tag key and value.
j. Click Create Flow Log
Create SQS and attach with S3
If you have selected S3 bucket as destination in above configuration, create SQS and attach with S3, please refer https://mdrkb.atlassian.net/wiki/spaces/AAMDARCQSG/pages/468746342
Integration Parameter details: Please refer below page to get credentials for Chronicle feed.
Get Credentials for AWS Storage
IAM user policies: Please refer below page to check required IAM user policies:
IAM User and KMS Key Policies Required for AWS
Integration parameters
SQS:
Property | Default value | Description |
|---|---|---|
REGION | Yes | Select the region of your S3 bucket |
QUEUE NAME | Yes | The SQS queue name. |
ACCOUNT NUMBER | Yes | The account number for the SQS queue and S3 bucket. |
QUEUE ACCESS KEY ID | Yes | This is the 20 character ID associated with your Amazon IAM account. |
QUEUE SECRET ACCESS KEY | Yes | This is the 40 character access key associated with your Amazon IAM account. |
SOURCE DELETION OPTION | Yes | Whether to delete source files after they have been transferred to Chronicle. This reduces storage costs. Valid values are:
|
S3 BUCKET ACCESS KEY ID | No | This is the 20 character ID associated with your Amazon IAM account. Only specify if using a different access key for the S3 bucket. |
S3 BUCKET SECRET ACCESS KEY | No | This is the 40 character access key associated with your Amazon IAM account. Only specify if using a different access key for the S3 bucket. |
ASSET NAMESPACE | No | To assign an asset namespace to all events that are ingested from a particular feed, set the |
Amazon Data Firehose:
Configure Amazon Data Firehose on Google Chronicle instance and copy a Endpoint URL & Secret key.
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