Forensics is the application of science to criminal and civil laws. It is a proven approach for gathering and processing evidence at a crime scene. An integral step in the forensics process is the isolation of the scene without contaminating or modifying the evidence. The isolation step prevents any further contamination or tampering with possible evidence. The same philosophy can be applied to the investigation of digital events.

In this post we will review methods, tactics and architecture designs to isolate an infected VM while still making it accessible to forensic tools. The goal is to allow access so that data and evidence can be captured while protecting other assets. There are many forensic tools for networking that can be used to analyze the captured traffic. This post does not cover these tools but rather how to configure GCP to capture live traffic in the most efficient and secured way. Once traffic is captured, customers can use whatever tools they prefer to run the analysis. More details about these tools and required agents can be found here and details about open source tooling that Google and others are developing are available here.

In cloud security context, when a VM shows signs of compromise, the most common immediate reaction is to take a snapshot, shut down the instance and relocate the image snapshot to an isolated environment, a method known as “dead analysis”. However, shutting down the instance will impede an important step in the investigation and digital forensics, as some important information in a buffer or the RAM may be lost. 

The other forensic approach is “live analysis”, in which the VM is kept on and evidence is gathered from the VM directly. Live forensics enables the imaging of RAM, bypasses most hard drives and software encryption, determines the cause of abnormal traffic, and is extremely useful when dealing with active network intrusions. This process is usually performed by forensic analysts. For example, if there is a good chance the malware resides only in memory then live forensics is, in some cases, the only way to capture and analyze the malware. In this method, in addition to disk and memory evidence, a forensic analysis can also capture live-network from data sent over the compromised VM network interfaces. Some of the benefits of collecting live networks are reconstruction and visualizing traffic flow in real-time, in particular during active network intrusions or attacks. 

In the cloud, a VM must be isolated when it becomes apparent that an incident has happened, in order to protect other VMs from being infected. Our Cloud Forensics 101 session covers the process and required artifacts, such as logs, that need to be collected for cloud forensics. 

What happens when your image is compromised

Let’s now assume that one of the VMs in your infrastructure has been compromised and alarms are coming from products such as GCP’s Cloud Security and Command Center, Chronicle backstory or your SIEM. 

An incident response plan consists of 3 phases: preparation (actions taken before an attack), detection (actions taken during an attack) and response (actions taken after an attack). During the detection phase, the Computer Security Incident Response Team (CSIRT) or threat analysts decide whether live acquisition analysis is required. If live forensics is required, for example when it is vital to acquire a VM’s RAM, then one of the first courses of action is to isolate and contain the VM from the rest of the world and connect the Forensics VPC to the VM for investigation. The forensics VPC resides in a forensics GCP project, it includes digital forensics tools to capture evidence from the VM such as SANS Investigative Forensics Toolkit – SIFT, The Sleuth Kit, Autopsy, Encase, FTK and alike. These tools are already installed, configured, tested and ready to use. The forensics project will also save and preserve evidence such as disk and memory images for forensic review.

We’ll cover two scenarios in this post, the first scenario is to isolate the image and connect the forensics VPC to the image for live acquisition. 

In the second scenario we will also capture live traffic from the isolated image for live network digital forensics. To capture live traffic from the infected VM, we will leverage the GCP Packet Mirroring service to duplicate all traffic going in and out of the VM and send it to a Forensics VPC for analysis. Network forensics analysis tools such as Palo Alto VM-Series for IDS, ExtraHop Reveal(x), CheckPoint CloudGuard, Arkime (formerly Moloch), Corelight are installed, configured and ready for deployment in the Forensics VPC, these tools will be used to analyze the duplicate network traffic. 

Isolating the infected VM from other resources and connecting the forensics VPC

As part of the Incident Response plan preparation phase, the CSIRT created a Google Cloud Forensics Project. Since the Forensics project will be used only when needed, it’s better to automate the creation of the project and its resources with a tool such as Terraform. It is important to grant access to this project only to individuals and groups who deal with incident response and forensics, such as CSIRT. As shown in figure 1, the Forensics project on the right includes its own VPC, non-overlapped subnet and VM images with pre-installed and pre-configured forensics tools. Internal load-balancer and instance-groups are also configured, we will use these resources to capture live traffic, as described later in this post.

In order to contain the spread of any malware or network activity, such as data exfiltration, we’ll isolate the VM with VPC firewall rules. The GCP VPC firewall is a distributed firewall that always enforces its rules, protecting the instances regardless of their configuration and operating systems. In other words, the compromised VM cannot override the firewall enforcement if its policies follow the principle of least privilege . Rules can be applied to all instances in the network, target network tags or service accounts.

Step 1 in the diagram above shows how an infected VM is isolated from the rest of the network by firewall rules that deny any ingress and egress traffic from any CIDR beside the forensics subnet CIDR. The infected VM is tagged with a unique network tag, for example “<image-name>_InfectedVM”, then firewalls rules are applied on the network tag. This ensures that the infected VM is isolated from the project and the Internet while enabling access to the VM via VPC peering which we’ll configure in step-2. You can learn more about VPC firewalls rules here.

In step 2, the VPC from the forensics project is peered with the VPC in the production project. When VPC peering is established routes are exchanged between the VPCs. By default, VPC peering exchanges all subnet routes, however, custom routes can also be filtered if required. At this point, the VM from the forensics project can communicate with the infected VM and start the live forensics analysis job using the pre-installed and pre-configured forensics tools.

Shared VPC is a network construct that allows you to connect resources from multiple projects, called service-projects, to a common VPC in a host-project. VPCs from different projects can securely communicate with each other via the hosted project network while centralizing the network administration. Figure 2 depicts Shared VPC topology, rather than using VPC peering, during step 2 the Forensics project is simply attached to the host project. After the attachment, the Shared VPC allows the forensics tools to communicate with the infected VMs.

Capturing live network traffic with Google Traffic Mirroring

If live network forensics is required, for example during active network intrusions, then the incoming and outgoing traffic needs to be duplicated and captured. While VPC Flow logs capture the networking metadata telemetry, this is not enough for live network forensics analysis. GCP Packet Mirroring clones the traffic of a specified instance in a VPC and forwards it to a specified internal load balancer which collects the mirrored traffic and sends it to an attached instance group. Packet mirroring captures all the traffic from the specified subnet, network tags, or instance name. 

Figure 3 depicts the steps that allow the compromised VM to communicate with the rest of the world (for example beaconing with C&C) while capturing all traffic for investigation in a peered VPC deployment.

Figure 4 depicts the steps that allow the compromised VM to communicate with the rest of the world while capturing all traffic for investigation in a shared VPC deployment.

We will use the Forensics’ project internal load balancer and the instance group VMs which include packet capture and analysis tools. Note that production and forensics networks must be in the same region. Detailed steps to configure packet mirroring are available on this page. 

If you are using a Shared VPC then check the Packet Mirroring configuration for Shared VPC for configuration details. Figure 4 depicts the packet mirroring flow in a shared VPC topology.

It is recommended to automate and periodically test the process to make sure that in case of an incident, the entire setup and Forensics toolchain can be quickly deployed. If after initial investigation a suspicious destination, such as a Command and Control [C&C] Server, has been identified, then the Packet Mirroring policy can be adjusted with a policy filter that only mirrors traffic from that C&C server IP address.

An incident management plan must be in place for companies using cloud services, and this plan should also include the option of using live acquisition when necessary. design and preparation for forensics acquisition allows the company to build the infrastructure that can be deployed and connected to the appropriate VM automatically. The architectures described in this post can help the process of collecting and preserving vital evidence for the forensic process, while the incident response team resolves the incident.

The financial services industry is changing—an estimated $68 trillion in wealth transferring from baby boomers to millennials.¹ This means financial service providers will have to deliver the speed, ease-of-use, technological sophistication, and tailored services that millennials have come to expect. In fact, half of all millennials are willing to switch to a competing institution if it offers a better digital experience.² This and many other trends are driving unprecedented growth for mobile Fintech experiences in banking, digital payments, financial management and insurance.³

Google Maps Platform financial services solutions

To help you respond to customer’s changing demands, we’re launching financial services solutions that can help you improve your customer experience, security and operations. We’ve outlined the technical guidance and APIs you need to build out three financial services solutions: Enriched Transactions, Quick and Verified Sign-up, and Branch and ATM Locator Plus. We’ve also highlighted two use cases that customers are using our APIs to solve: Contextual Experiences and Fraud Detection. 

Clarify financial statements with Enriched Transactions solution

Transaction statements are often hard for customers to understand, using abbreviations like “ACMEHCORP” instead of customer-facing names like “Acme Houseware”. Our Enriched Transactions solution clarifies these transactions and makes them instantly recognizable by adding the merchant name and business category, a photo of the storefront, its location on a map, and full contact info. Making transactions easier to recognize not only boosts consumer confidence, with reported increases in NPS of 15% or higher, but decreases costly support calls by approximately 67%.⁴

In addition, you can help customers easily visualize a series of transactions by adding the merchant name to the transaction amount and date, and displaying their transactions on a Google map. This enables you to give customers insights about where and how they spend money. See the guide to implement Enriched Transactions today.

Enable faster sign-up with Quick and Verified Sign-up solution

Manually entered addresses can lead to lowered conversions, erroneous customer data, and costly delivery mistakes. Our Quick and Verified Sign-up solution makes sign-up faster, suggesting nearby addresses with just a few thumb taps—cutting sign-up time by up to 64% and increasing conversion rates by up to 15%.⁵  

The solution also provides one additional level of address verification that helps reduce the risk of fraudulent account sign-ups—and companies have decreased fraudulent account setups by approximately 30% through using geospatial data to verify customer identities.⁴  See the Quick and Verified Sign-up solution guide to get started today.

• Faster sign-ups 1An application form requires an address
• Faster sign-ups 2Autocomplete quickly suggests addresses
• Faster sign-ups 3Select the address with visual confirmation
• Faster sign-ups 4Address verification options are presented
• Faster sign-ups 5Location permission is granted by the user
• Faster sign-ups 6The address is verified

Help customers visit you with Branch and ATM Locator Plus solution

74% of customers now search for specific details prior to their visit, which makes detailed, accurate profiles for each location a must.⁵ Our Branch and ATM Locator Plus solution enhances your own websites and apps with the same information shown about your branches and ATMs on Google Maps. Include hours of operation, available services, user reviews, photos of the location, driving directions and more.

Financial services companies using geospatial data to provide additional information (e.g. opening hours, available services, etc.) on branch and ATM services have seen a 14% increase in Net Promoter Score (NPS), and a 7% decrease in customer support calls.⁴  Implement Branch and ATM Locator Plus today using the guide or build it in minutes with Quick Builder.

• ATM locator 1Customers can enable location permissions, or enter their address
• ATM locator 2Quickly enter the address with Autocomplete
• ATM locator 3Nearby location listings, ranked by distance and ETA
• ATM locator 4Map view and directions

Enable offers and rewards with Contextual Experiences                    

Real-time, geo-targeted offers can power deals, rewards, and cash-back programs—all visualized with rich Google Maps. By combining the insights of purchase histories with customer opt-in to location-based features, companies can implement the Contextual Experiences use case to enable personalized offers and rewards programs that drive engagement with brands while putting money in customers’ pockets at the same time.This is a win for banks and their customers, validated by encouraging metrics like NPS rating boosts of 8% or higher, and an increase of 8% or more time spent in-app.⁴  Learn how Current uses Google Maps Platform to create innovative customer rewards programs with location intelligence.

Detect suspicious transactions with Fraud Detection

With the Fraud Detection use case, companies can use customer opted-in mobile device location to flag suspicious activity based on geographic distance, such as an ATM withdrawal that is far from the customer’s phone. Our APIs can also help companies recognize suspicious transaction patterns such as a purchase made at a location that is physically distant from a recent transaction. 

Financial services companies that use geospatial data to verify customers’ identities have reduced fraudulent transactions by approximately 70%, and false positives in fraud detection by 45%, on average.⁴  Learn how Starling Bank uses Google Maps Platform to enable real-time notification of transactions and their locations, and enhance data-driven decision-making.

Start elevating customer experiences, reducing risk and increasing efficiency today with our financial services offerings. Visit our financial services solutions page to learn more about how to start implementing these solutions.

For more information on Google Maps Platform, visit our website.

For more than 15 years, developers have used Google Maps Platform to deliver location-based experiences to their end users and used location intelligence to optimize their businesses. Along this journey, we’ve made a variety of changes to better support our community as needs have changed and new industries and technologies have emerged. We started rolling out a new website experience, at https://mapsplatform.google.com, to help you better understand the products and solutions best suited to address your objectives. Plus, now you can directly connect to the developer documentation for each product to get started quickly, and you can visualize usage and associated costs to have a better idea of what to expect before getting started. 

Getting to your solution faster 

Maps, Routes, Places are building blocks that let you develop implementations for any use case. Building for specific use cases, however, typically requires using a combination of APIs and SDKs. To help you quickly understand what’s possible and what you need to build for your use case, you can now visit the solutions tab to select from a list of popular use cases or industries. Once you’ve selected a use case or industry, you’re taken to a page where you can explore relevant products, read helpful blog posts, see how other customers have deployed for similar use cases, and more.  

Direct access to developer documentation

Did you know there are more than a thousand pages of developer documentation created to help you get started, unblock you when you’re stuck, and share best practices? Now when you explore a product or solution from the Google Maps Platform website, you can easily navigate back and forth between our website and documentation. Just tap on JS, iOS, Android or API under the product name to get to the documentation you need. 

Budgeting for your project

To help you calculate pricing for your project, we’ve introduced a new pricing calculator. Once you find the product and API or SDK you plan to use, pull the slider to reflect your estimated number of monthly requests. This will automatically update the “monthly cost” column for each product and API or SDK you plan to use. If your estimated monthly requests exceed the slider limit, contact our sales team to ​​learn about volume discounts that start at 20% off. 

We hope our new website makes it easier to discover our products and solutions, estimate your budget, and start building with our documentation so you can deliver helpful experiences to your users and optimize your business. 

For more information on Google Maps Platform, visit https://mapsplatform.google.com.

Google Cloud’s industry-leading controls, contractual commitments, and accountability tools have helped organizations across Europe meet stringent data protection regulatory requirements for years. This commitment to supporting the  compliance efforts of European companies has earned us the trust of businesses like retailers, manufacturers and financial services providers.

As part of our continued efforts to uphold that trust, Google Cloud was one of the first cloud providers to support and adopt the EU GDPR Cloud Code of Conduct (CoC). The CoC is a mechanism for cloud providers to demonstrate how they offer sufficient guarantees to implement appropriate technical and organizational measures as data processors under the GDPR.  

Today the Belgian Data Protection Authority, based on a positive opinion by the European Data Protection Board (EDPB), approved the CoC, a product of years of constructive collaboration between the cloud computing community, the European Commission, and European data protection authorities. We are proud to say that Google Cloud Platform and  Google Workspace already adhere to these provisions. This is the first European code approved under the GDPR; it is excellent news for the industry to have a new transparency and accountability tool that helps promote trust in the cloud. 

In addition to the CoC, Google Cloud has already been certified against internationally-recognized privacy standards such as ISO/IEC 27001, ISO/IEC 27017, ISO/IEC 27018 and ISO/IEC 27701. These certifications provide independent validation of our ongoing dedication to world-class security and privacy.

This initiative reaffirms Google Cloud’s commitment to help our customers navigate their compliance journey when using our services. To learn more about how Google Cloud can help organizations with their compliance efforts, visit our Cloud Compliance resource center.

We’re pleased to announce that Confidential Space, our new solution that allows you to control access to your sensitive data and securely collaborate in ways not previously possible, is now available in public Preview. First announced at Google Cloud Next, Confidential Space can offer many benefits to securely manage data from financial institutions, healthcare and pharmaceutical companies, and Web3 assets. Today, we will explore some security properties of the Confidential Space system that makes these solutions possible.

Confidential Space uses a trusted execution environment (TEE), which allows data contributors to have control over how their data is used and which workloads are authorized to act on the data. An attestation process and hardened operating system image helps to protect the workload and the data that the workload processes from an untrusted operator.

The Confidential Space system has three core components:

1. The workload is a containerized image with a hardened OS that runs in a cloud-based TEE. You can use Confidential Computing as the TEE that offers hardware isolation and remote attestation capabilities.
2. The attestation service, which is an OpenID Connect (OIDC) token provider. This service verifies the attestation quotes for TEE and releases authentication tokens. The tokens contain identification attributes for the workload.
3. A managed cloud protected resource, such as a Cloud Key Management Service key or Cloud Storage bucket. The resource is protected by an allow policy that grants access to authorized federated identity tokens.

The system can help ensure that access to protected resources is granted only to authorized workloads. Confidential Space also can help protect the workload from inspection and tampering, before and after attestation.

In our published Confidential Space Security Overview research paper, we explore several potential attack vectors against a Confidential Space system and how it can mitigate those threats. Notably, the research notes how Confidential Space can protect against malicious workload operators and administrators, and malicious outside adversaries, who are attempting to create rogue workload attestations.

Through these protections, Confidential Space establishes confidence that only the agreed upon workloads will be able to access sensitive data. The research also highlights some of the extensive security reviews and tests executed to identify potential weak points in the system, including domain expert reviews, meticulous security audits, and functional and fuzz testing.

We asked the NCC Group for an independent security assessment of Confidential Space to analyze its architecture and implementation. NCC Group leveraged their experience reviewing other Google Cloud products to dig deep into Confidential Space.

The NCC Group’s extensive review, which included penetration testing and automated security scanning, found zero security vulnerabilities. In their report, the architecture review highlights how the security properties are achieved through the coordination of measured boot with vTPM attestation, reduced attack surface with constricted administrator controls and access, workload measurement and enforced launch policy, and resource protection policy based on attested workload runtime properties.

The combination of these attributes creates powerful security properties, gating release of data on runtime measurements of the actual workload code and environment instead of just user and service account credentials. Confidential Space provides a platform that includes:

• A dependable workload attestation, including workload code measurement, arguments and environment, and operating environment claims
• A fully-managed attestation verification service that validates expected environmental attestation claims
• A policy engine allowing for arbitrarily complex (or extremely simple) policy to be created around those claims
• A mechanism to attach those policies to Google Cloud resources

Together, the platform provides a mechanism where one can ensure that their data is only ever released into trusted workloads that will not abuse that data.

Take a look at our documentation and codelab and take it for a spin. We hope that Confidential Space can inspire organizations to solve their use cases around multi-party collaboration with sensitive data; please contact your Google Cloud sales representative if you have any questions.