threat intelligence

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Sentinel Foundry - MCP Server (Preview) (Github Community Release)
I’ve been cooking something that a lot of people in SOC have been struggling with — especially on the engineering side of Microsoft Sentinel. Thanks to the Microsoft Security team for shaping the capabilities of Sentinel even better with Sentinel Data Lake & Modern SecOps. Today’s the day I can finally share it. Note: This is not an official Microsoft product, but it is designed to make the Sentinel Build even better (complement) with much more intelligence. 🚀 Sentinel Foundry is now in public preview with 43 tools. (Sentinel Foundry - MCP Server) It’s an MCP server built to act like the brain of a strong Sentinel engineer — helping make building, improving, and operating Sentinel far more practical, faster, and honestly more enjoyable. For a lot of teams, the challenge is not understanding what Sentinel can do. The hard part is the engineering work around it: -> Deciding what data should actually be ingested -> Building a clean, scalable Sentinel foundation -> Writing useful detections instead of noisy ones -> Balancing security value with cost -> Turning ideas into deployable engineering outputs That is exactly why I built Sentinel Foundry to help communities grow stronger. It helps with the real engineering tasks behind Sentinel — from architecture thinking to detection design, deployment planning, ingestion strategy, automation ideas, and many of the workflows outlined in the GitHub project. How does it work? Here’s one of the flagship prompts I ran with it: “Give me a complete security posture report for our workspace. Score each pillar and tell me what to prioritise.” And within seconds, it produced a structured engineering blueprint that would normally take a lot longer to pull together manually. You can see the example prompts here in what it can do: https://github.com/prabhukiranveesam/Sentinel-Foundry#what-can-it-do I want building Sentinel to feel less like repetitive engineering overhead — and more like real security engineering that is fast, creative, and enjoyable. If you work with Sentinel as a SOC L2 analyst, engineer, detection engineer, consultant, or architect, I’d genuinely love for you to try it and tell me what you think. 🔗 Public Preview: https://github.com/prabhukiranveesam/Sentinel-Foundry This is just the start of an AI era — and I’m excited to keep shaping it with more powerful features over the coming days. This is very easy to set up and will be available to all of you at no cost during this month as part of the public preview, and your feedback is extremely valuable to shape this as a powerful solution.
veesamprabhukiran
May 05, 2026 Place Microsoft Sentinel
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Understand New Sentinel Pricing Model with Sentinel Data Lake Tier
Introduction on Sentinel and its New Pricing Model Microsoft Sentinel is a cloud-native Security Information and Event Management (SIEM) and Security Orchestration, Automation, and Response (SOAR) platform that collects, analyzes, and correlates security data from across your environment to detect threats and automate response. Traditionally, Sentinel stored all ingested data in the Analytics tier (Log Analytics workspace), which is powerful but expensive for high-volume logs. To reduce cost and enable customers to retain all security data without compromise, Microsoft introduced a new dual-tier pricing model consisting of the Analytics tier and the Data Lake tier. The Analytics tier continues to support fast, real-time querying and analytics for core security scenarios, while the new Data Lake tier provides very low-cost storage for long-term retention and high-volume datasets. Customers can now choose where each data type lands—analytics for high-value detections and investigations, and data lake for large or archival types—allowing organizations to significantly lower cost while still retaining all their security data for analytics, compliance, and hunting. Please flow diagram depicts new sentinel pricing model: Now let's understand this new pricing model with below scenarios: Scenario 1A (PAY GO) Scenario 1B (Usage Commitment) Scenario 2 (Data Lake Tier Only) Scenario 1A (PAY GO) Requirement Suppose you need to ingest 10 GB of data per day, and you must retain that data for 2 years. However, you will only frequently use, query, and analyze the data for the first 6 months. Solution To optimize cost, you can ingest the data into the Analytics tier and retain it there for the first 6 months, where active querying and investigation happen. After that period, the remaining 18 months of retention can be shifted to the Data Lake tier, which provides low-cost storage for compliance and auditing needs. But you will be charged separately for data lake tier querying and analytics which depicted as Compute (D) in pricing flow diagram. Pricing Flow / Notes The first 10 GB/day ingested into the Analytics tier is free for 31 days under the Analytics logs plan. All data ingested into the Analytics tier is automatically mirrored to the Data Lake tier at no additional ingestion or retention cost. For the first 6 months, you pay only for Analytics tier ingestion and retention, excluding any free capacity. For the next 18 months, you pay only for Data Lake tier retention, which is significantly cheaper. Azure Pricing Calculator Equivalent Assuming no data is queried or analyzed during the 18-month Data Lake tier retention period: Although the Analytics tier retention is set to 6 months, the first 3 months of retention fall under the free retention limit, so retention charges apply only for the remaining 3 months of the analytics retention window. Azure pricing calculator will adjust accordingly. Scenario 1B (Usage Commitment) Now, suppose you are ingesting 100 GB per day. If you follow the same pay-as-you-go pricing model described above, your estimated cost would be approximately $15,204 per month. However, you can reduce this cost by choosing a Commitment Tier, where Analytics tier ingestion is billed at a discounted rate. Note that the discount applies only to Analytics tier ingestion—it does not apply to Analytics tier retention costs or to any Data Lake tier–related charges. Please refer to the pricing flow and the equivalent pricing calculator results shown below. Monthly cost savings: $15,204 – $11,184 = $4,020 per month Now the question is: What happens if your usage reaches 150 GB per day? Will the additional 50 GB be billed at the Pay-As-You-Go rate? No. The entire 150 GB/day will still be billed at the discounted rate associated with the 100 GB/day commitment tier bucket. Azure Pricing Calculator Equivalent (100 GB/ Day) Azure Pricing Calculator Equivalent (150 GB/ Day) Scenario 2 (Data Lake Tier Only) Requirement Suppose you need to store certain audit or compliance logs amounting to 10 GB per day. These logs are not used for querying, analytics, or investigations on a regular basis, but must be retained for 2 years as per your organization’s compliance or forensic policies. Solution Since these logs are not actively analyzed, you should avoid ingesting them into the Analytics tier, which is more expensive and optimized for active querying. Instead, send them directly to the Data Lake tier, where they can be retained cost-effectively for future audit, compliance, or forensic needs. Pricing Flow Because the data is ingested directly into the Data Lake tier, you pay both ingestion and retention costs there for the entire 2-year period. If, at any point in the future, you need to perform advanced analytics, querying, or search, you will incur additional compute charges, based on actual usage. Even with occasional compute charges, the cost remains significantly lower than storing the same data in the Analytics tier. Realized Savings Scenario Cost per Month Scenario 1: 10 GB/day in Analytics tier $1,520.40 Scenario 2: 10 GB/day directly into Data Lake tier $202.20 (without compute) $257.20 (with sample compute price) Savings with no compute activity: $1,520.40 – $202.20 = $1,318.20 per month Savings with some compute activity (sample value): $1,520.40 – $257.20 = $1,263.20 per month Azure calculator equivalent without compute Azure calculator equivalent with Sample Compute Conclusion The combination of the Analytics tier and the Data Lake tier in Microsoft Sentinel enables organizations to optimize cost based on how their security data is used. High-value logs that require frequent querying, real-time analytics, and investigation can be stored in the Analytics tier, which provides powerful search performance and built-in detection capabilities. At the same time, large-volume or infrequently accessed logs—such as audit, compliance, or long-term retention data—can be directed to the Data Lake tier, which offers dramatically lower storage and ingestion costs. Because all Analytics tier data is automatically mirrored to the Data Lake tier at no extra cost, customers can use the Analytics tier only for the period they actively query data, and rely on the Data Lake tier for the remaining retention. This tiered model allows different scenarios—active investigation, archival storage, compliance retention, or large-scale telemetry ingestion—to be handled at the most cost-effective layer, ultimately delivering substantial savings without sacrificing visibility, retention, or future analytical capabilities.
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Aaida_Aboobakkar
Apr 25, 2026 Place Microsoft Sentinel
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Ingest IOC from Google Threat Intelligence into Sentinel
Hi all, I'm string to ingest IOCs from Google Threat Intelligence into Sentinel. I follow the guide at gtidocs.virutotal.com/docs/gti4sentinel-guide API KEY is correct. PS: I'm using standard free public API (created in Viru Total) Managed Identitity has been configured using the correct role. When I run the Logic APP, I received an HTTP error 403 "code": "ForbiddenError", "message": "You are not authorized to perform the requested operation" What's the problem ?? Regards, HA
HA13029
Apr 07, 2026 Place Microsoft Sentinel
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RSAC 2026: What the Sentinel Playbook Generator actually means for SOC automation
RSAC 2026 brought a wave of Sentinel announcements, but the one I keep coming back to is the playbook generator. Not because it's the flashiest, but because it touches something that's been a real operational pain point for years: the gap between what SOC teams need to automate and what they can realistically build and maintain. I want to unpack what this actually changes from an operational perspective, because I think the implications go further than "you can now vibe-code a playbook." The problem it solves If you've built and maintained Logic Apps playbooks in Sentinel at any scale, you know the friction. You need a connector for every integration. If there isn't one, you're writing custom HTTP actions with authentication handling, pagination, error handling - all inside a visual designer that wasn't built for complex branching logic. Debugging is painful. Version control is an afterthought. And when something breaks at 2am, the person on call needs to understand both the Logic Apps runtime AND the security workflow to fix it. The result in most environments I've seen: teams build a handful of playbooks for the obvious use cases (isolate host, disable account, post to Teams) and then stop. The long tail of automation - the enrichment workflows, the cross-tool correlation, the conditional response chains - stays manual because building it is too expensive relative to the time saved. What's actually different now The playbook generator produces Python. Not Logic Apps JSON, not ARM templates - actual Python code with documentation and a visual flowchart. You describe the workflow in natural language, the system proposes a plan, asks clarifying questions, and then generates the code once you approve. The Integration Profile concept is where this gets interesting. Instead of relying on predefined connectors, you define a base URL, auth method, and credentials for any service - and the generator creates dynamic API calls against it. This means you can automate against ServiceNow, Jira, Slack, your internal CMDB, or any REST API without waiting for Microsoft or a partner to ship a connector. The embedded VS Code experience with plan mode and act mode is a deliberate design choice. Plan mode lets you iterate on the workflow before any code is generated. Act mode produces the implementation. You can then validate against real alerts and refine through conversation or direct code edits. This is a meaningful improvement over the "deploy and pray" cycle most of us have with Logic Apps. Where I see the real impact For environments running Sentinel at scale, the playbook generator could unlock the automation long tail I mentioned above. The workflows that were never worth the Logic Apps development effort might now be worth a 15-minute conversation with the generator. Think: enrichment chains that pull context from three different tools before deciding on a response path, or conditional escalation workflows that factor in asset criticality, time of day, and analyst availability. There's also an interesting angle for teams that operate across Microsoft and non-Microsoft tooling. If your SOC uses Sentinel for SIEM but has Palo Alto, CrowdStrike, or other vendors in the stack, the Integration Profile approach means you can build cross-vendor response playbooks without middleware. The questions I'd genuinely like to hear about A few things that aren't clear from the documentation and that I think matter for production use: Security Copilot dependency: The prerequisites require a Security Copilot workspace with EU or US capacity. Someone in the blog comments already flagged this as a potential blocker for organizations that have Sentinel but not Security Copilot. Is this a hard requirement going forward, or will there be a path for Sentinel-only customers? Code lifecycle management: The generated Python runs... where exactly? What's the execution runtime? How do you version control, test, and promote these playbooks across dev/staging/prod? Logic Apps had ARM templates and CI/CD patterns. What's the equivalent here? Integration Profile security: You're storing credentials for potentially every tool in your security stack inside these profiles. What's the credential storage model? Is this backed by Key Vault? How do you rotate credentials without breaking running playbooks? Debugging in production: When a generated playbook fails at 2am, what does the troubleshooting experience look like? Do you get structured logs, execution traces, retry telemetry? Or are you reading Python stack traces? Coexistence with Logic Apps: Most environments won't rip and replace overnight. What's the intended coexistence model between generated Python playbooks and existing Logic Apps automation rules? I'm genuinely optimistic about this direction. Moving from a low-code visual designer to an AI-assisted coding model with transparent, editable output feels like the right architectural bet for where SOC automation needs to go. But the operational details around lifecycle, security, and debugging will determine whether this becomes a production staple or stays a demo-only feature. Would be interested to hear from anyone who's been in the preview - what's the reality like compared to the pitch?
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Marcel_Graewer
Apr 05, 2026 Place Microsoft Sentinel
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Defender Entity Page w/ Sentinel Events Tab
One device is displaying the Sentinel Events Tab, while the other is not. The only difference observed is that one device is Azure AD (AAD) joined and the other is Domain Joined. Could this difference account for the missing Sentinel events data? Any insight would be appreciated!
HeyNiko
Dec 17, 2025 Place Microsoft Sentinel
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Sentinel to Defender | Two-part webinar series: Dec 9 & 16
Register here
RenWoods
Nov 20, 2025 Place Microsoft Sentinel
196Views
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Unable to Delete Threat Intelligence Indicator
Hi, For testing purposes, I added a TI indicator in Sentinel via the UI. When I deleted it, the indicator disappeared from the UI, but the record still exists in the ThreatIntelIndicators table. From what I’ve observed, every modification to a TI indicator leaves a record in the table, almost like an audit trail. So now I see two records: One for the original creation One for the deletion action The issue is that I’m building a rule based on this table, and it still matches the “created” record even though the indicator was deleted. I’ve already tried both: az sentinel threat-indicator delete module and REST API. But I got server errors. Is there any way to completely delete a TI record from the ThreatIntelIndicators table ? Thanks in advance.
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Akila2
Sep 09, 2025 Place Microsoft Sentinel
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How to exclude IPs & accounts from Analytic Rule, with Watchlist?
We are trying to filter out some false positives from a Analytic rule called "Service accounts performing RemotePS". Using automation rules still gives a lot of false mail notifications we don't want so we would like to try using a watchlist with the serviceaccounts and IP combination we want to exclude. Anyone knows where and what syntax we would need to exlude the items on the specific Watchlist? Query: let InteractiveTypes = pack_array( // Declare Interactive logon type names 'Interactive', 'CachedInteractive', 'Unlock', 'RemoteInteractive', 'CachedRemoteInteractive', 'CachedUnlock' ); let WhitelistedCmdlets = pack_array( // List of whitelisted commands that don't provide a lot of value 'prompt', 'Out-Default', 'out-lineoutput', 'format-default', 'Set-StrictMode', 'TabExpansion2' ); let WhitelistedAccounts = pack_array('FakeWhitelistedAccount'); // List of accounts that are known to perform this activity in the environment and can be ignored DeviceLogonEvents // Get all logon events... | where AccountName !in~ (WhitelistedAccounts) // ...where it is not a whitelisted account... | where ActionType == "LogonSuccess" // ...and the logon was successful... | where AccountName !contains "$" // ...and not a machine logon. | where AccountName !has "winrm va_" // WinRM will have pseudo account names that match this if there is an explicit permission for an admin to run the cmdlet, so assume it is good. | extend IsInteractive=(LogonType in (InteractiveTypes)) // Determine if the logon is interactive (True=1,False=0)... | summarize HasInteractiveLogon=max(IsInteractive) // ...then bucket and get the maximum interactive value (0 or 1)... by AccountName // ... by the AccountNames | where HasInteractiveLogon == 0 // ...and filter out all accounts that had an interactive logon. // At this point, we have a list of accounts that we believe to be service accounts // Now we need to find RemotePS sessions that were spawned by those accounts // Note that we look at all powershell cmdlets executed to form a 29-day baseline to evaluate the data on today | join kind=rightsemi ( // Start by dropping the account name and only tracking the... DeviceEvents // ... | where ActionType == 'PowerShellCommand' // ...PowerShell commands seen... | where InitiatingProcessFileName =~ 'wsmprovhost.exe' // ...whose parent was wsmprovhost.exe (RemotePS Server)... | extend AccountName = InitiatingProcessAccountName // ...and add an AccountName field so the join is easier ) on AccountName // At this point, we have all of the commands that were ran by service accounts | extend Command = tostring(extractjson('$.Command', tostring(AdditionalFields))) // Extract the actual PowerShell command that was executed | where Command !in (WhitelistedCmdlets) // Remove any values that match the whitelisted cmdlets | summarize (Timestamp, ReportId)=arg_max(TimeGenerated, ReportId), // Then group all of the cmdlets and calculate the min/max times of execution... make_set(Command, 100000), count(), min(TimeGenerated) by // ...as well as creating a list of cmdlets ran and the count.. AccountName, AccountDomain, DeviceName, DeviceId // ...and have the commonality be the account, DeviceName and DeviceId // At this point, we have machine-account pairs along with the list of commands run as well as the first/last time the commands were ran | order by AccountName asc // Order the final list by AccountName just to make it easier to go through | extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName) | extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "")
Nick165
Aug 07, 2025 Place Microsoft Sentinel
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Log Analytics Workspace - ThreatIntelIndicators
Morning! I have been working on migrating some of our tenant analytic rules to use the new TI ThreatIntelIndicators table. However, I noticed the following: When querying against the new table, I get these values in a tenant log workspace When I do the same query in another tenant logs workspace, I get this result back If I expand the query to grab last 7 days, I get results back but they are wildly different from what I see from one tenant to another. I can find big and small discrepancies in the logs I see. I still can't find the connector on the connectors page (When I filter them out by data type). I can see the one that is being used for the soon to be decommissioned table. As far as I understand, the connector is not going to be changed per se, just how we access the logs from any given log analytics workspace. I'm expecting to see the same values across my log workspaces since it comes from the same connector, and provided by MS, or is this ingestion of TI logs tenant scope and each one has different settings? I couldn't find something that tells me this in the docs. Or is this part of the rollout problems we are expecting to see? Thanks!
FaRa_AVM
Apr 09, 2025 Place Microsoft Sentinel
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Generic Logic App to ingest IOCs in text format
Hi all, I configured Sentinel to ingest IOC from different Threat Intelligence sources (free) using TAXII connector. I would like to ingest others feeds in text format (like https://raw.githubusercontent.com/openphish/public_feed/refs/heads/main/feed.txt, , https://bazaar.abuse.ch/export/txt/sha1/recent/ ) using a generic Logic App to Security Graph. These IOCs could be IP, Hash, URL or domain. Does this kind of Logic App exists ?? Regards, HA
HA13029
Apr 09, 2025 Place Microsoft Sentinel
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