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Automate Malware Removing & Quarantine in Workloads
Workload Safety
Leverage automated and programmable APIs to rapidly safe and quarantine workloads with out interrupting downstream workflows.
By: Amar Babu
August 03, 2021
Learn time: ( phrases)
Manually monitoring and investigating workloads for malware is sort of not possible given the velocity of constructing within the cloud. Automated safety insurance policies that detect and defend new workloads as rapidly as you create them is important to staying on observe.
On this article, we’ll reveal how Pattern Micro Cloud One™ – Workload Safety makes use of APIs to mechanically isolate a workload and quarantine it with a firewall module when a risk is detected.
Structure and configurations overview To observe alongside, join your free, 30-day trial of Pattern Micro Cloud One™ and clone the GitHub repository. We will probably be utilizing EICAR, a well known benign malware that evokes an analogous response to different “actual” malwares. We will even be utilizing 4 AWS providers: Easy Notification System (SNS), Elastic Computing (EC2), Secrets and techniques Supervisor, and Lambda. Under is an summary of the use case answer structure:
We now have already built-in the take a look at compute occasion 18.188.15.133 (am-demo-1) [i-0d81213afa3ea2637] with Workload Safety. Now that your occasion is put in, let’s check out its configurations.
As you may see, Anti-Malware scanning is on, however Firewall is presently off, which means there’s no filtration of ingress and egress site visitors. For Anti-Malware, you may configure many guidelines, insurance policies, and actions to be taken after detection. On this demo, now we have configured it to activate the Firewall solely after malware is detected. If no malware is detected, Firewall will stay off and reset to its unique state, so that you don’t have to fret about adjusting the foundations each time.
Subsequent, let’s dive deeper into the configurations for the 4 distinctive Lambda capabilities in our structure.
Step Operate (TM-Workload-Quarantine-Cycle-Set off-StepFunction-Lambda): This operate triggers the AWS Step Operate cycle for the anti-malware occasion. Underneath Atmosphere variables, you may see now we have arrange a delayed auto-release (worth = 1. Indefinite quarantine worth is 0) with a quarantine interval of 180 seconds. You may have the flexibleness to set any time worth of your alternative, however for the aim of this demo, we selected 3 minutes so you may see your complete lifecycle with out ready round for too lengthy. It’s extremely advisable that you just indefinitely quarantine any potential threats till it’s inspected and accepted by a safety skilled.
Impose Quarantine (TM-Workload-Impose-Quarantine-Lambda): Right here, now we have configured our API key, Host ID, and AWS Secrets and techniques Supervisor. The API secret is used to authenticate the operate earlier than it may talk with the Pattern Micro Cloud One server.
To configure API keys:
Go to the Workload Safety console
Click on Administration tab
Click on API Keys
Click on New and add the permissions, which will probably be saved in AWS Secrets and techniques Supervisor
Launch Quarantine: That is equivalent to the Impose Quarantine operate however right here we activate the discharge after 180 seconds.
Quarantine Standing (TM-Workload-Quarantine-Standing-Groups-Writer-Lambda): This operate sends an alert by way of Amazon SNS. Right here you may specify the place the notifications will probably be printed, which in our case is Microsoft Groups. Organising alerts is an effective way to foster a collaborative atmosphere and maintain growth and safety groups on the identical web page.
Demo
Okay, now that we’ve lined the fundamentals of our setup, let’s set off the occasion:
Open your AWS EC2 dashboard and duplicate the general public IP handle (18.188.15.133) related to the occasion you’ve arrange for this demo
Ping the IP handle to examine for the community connectivity. It’s best to obtain a response and see the site visitors is flowing.
Open the SSH session and enter the EICAR malware textual content (X5O!P%@AP[4PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*)
Return to the Workload Security console, click Anti-Malware then scroll down.
Under Malware Scan, click Full Scan for Malware.
Go to Anti-Malware Events and you should see a new anti-malware event has been detected and the EICAR malware was identified (under Malware Type). Under Action Type, you will see the quarantine has been automatically triggered.
Now it’s time to sit back and watch the magic of Workload Security.
After the anti-malware event begins, it will communicate with the first Lambda function in line (TM-Workload-Quarantine-Cycle-Trigger-StepFunction-Lambda)
In your Lambda dashboard:
Click Step Functions
Click State Machines
Click TM-AutoIsolate_Workload_State-Machine
Under Executions, you will see the step function is now running.
Click on that function and scroll down to Graph inspector, which shows the workflow of the anti-malware event. The screenshot below shows we have successfully passed through the first three stages and are in the delayed quarantine phase.
After AWS Step Functions is triggered, the second custom Lambda (TM-Workload-Impose-Quarantine-Lambda) is prompted to communicate with the AWS Secrets Manager, fetch the API key to authenticate itself, and send instructions to the Trend Micro Cloud One Server to quarantine the malware. In this demo, we have chosen to quarantine with a delayed release, so production isn’t abruptly interrupted by any false positives.
Now that the malware is being quarantined, Amazon SNS will send a notification to Microsoft Teams to release an alert. Amazon SNS color codes each alert to make it easy for busy teams to identify the current stage of the event. Yellow = quarantine, orange = indefinite quarantine, and green = release.
After the malware has been quarantined, check that the Firewall is now active by going to the Workload Security console and selecting the compute instance for this demo. You should see that it has been activated with two new rules: block all incoming traffic and block all outgoing traffic. These are level three priority rules, meaning only one type of communication is being sent. It is not advised to use level four priority rules because it will interrupt communication between the Workload Agent and the Trend Micro Cloud One Server.
You can also test that the Firewall is working by trying to send a ping to check network connectivity. You should see that all the traffic has stopped, which contains the threat so it cannot travel to other areas of your environment. You also will be unable to type and perform communications in the SSH session box. Perfect, everything is running as it should be.
After 180 seconds have passed, you’ll see the Graph inspector is now in the Release Cycle stage. Subsequently, you should receive the release alert in Teams.
Do a final check to make sure traffic is running again and that you can type and perform communications. Et voila, you are done!
Next steps
Not all automation is equal. Just like how a vendor sells different models of robot vacuums, automation capabilities vary from one security solution to another. Workload Security can automatically detect and protect against new and existing workloads and integrates with your cloud services from AWS, Microsoft Azure, Google Cloud Platform™, and more.
To learn more about the capabilities of Workload Security for DevOps, check out this video.
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