Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

4,916 detections

This query visualises the total amount of admin false negative submissions by the state of the submission.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
Total Submissions by Submission State
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
This query visualises the original detection technology of emails submitted as phish false positive by admins
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
In this query, we hunt for inbound emails delivered having URLs from QR codes
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
This query visualises bad traffic (% of emails with threats) compared to total inbound emails over time summarising the data daily.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
This query helps in reviewing group Quarantine released messages by detection type. Useful to see what is leading to the largest number of messages being released.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
This query visualises the amount of emails subject to an admin policy with action of block, summarizing the data daily
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
This query looks for events that are near in time to a detected event.
It shows how you could avoid typing exact timestamps, and replace it with a simple query to get the timestamp of your pivot event (e.g. a detected event).
This is useful when you have queries that you run often - e.g. as part of your regular investigation of an alert.
Original query: filter for network logon events right before some timestamp.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
Surfaces suspicious spoolsv.exe behavior likely related to CVE-2021-1675
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
Identifies suspicious child processes of SolarWinds.Orion.Core.BusinessLayer.dll that may be evidence of the SUNBURST backdoor
References:
- https://www.fireeye.com/blog/threat-research/2020/12/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor.html
- https://gist.github.com/olafhartong/71ffdd4cab4b6acd5cbcd1a0691ff82f
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
'Detects the redirect URL of an app being changed.
Applications associated with URLs not controlled by the organization can pose a security risk.
Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#application-configuration-changes'
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
'This query looks for messages related to file downloads of suspicious file types. This query uses the Exchange HttpProxy AOBGeneratorLog, you will need to onboard this log as a custom log under the table http_proxy_oab_CL before using this query.
Reference: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/'
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
1015
Identifies SolarWinds SUNBURST and SUPERNOVA backdoor file hash IOCs in File Events
To use this analytics rule, make sure you have deployed the [ASIM normalization parsers](https://aka.ms/ASimFileEvent)
References:
- https://www.fireeye.com/blog/threat-research/2020/12/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor.html
- https://gist.github.com/olafhartong/71ffdd4cab4b6acd5cbcd1a0691ff82f
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0015
// Author: jan geisbauer
// @janvonkirchheim
// ------------------------
// 1. A list of all devices that have this vulnerability
// 2. A list of all users that uses those devices
// 3. If these users received .mkv files recently
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0014
This query provides insights on users who clicked on a suspicious URL
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
1014
In this query, we are looking URL click actions by URL in the last 7 days
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0014
This query visualises the daily amount of admin false negative submission by submission type.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0014
This query helps reviewing inbound / outbound / intra-org emails by domain per day
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0014
This query provides insights on the detections done by SafeLinks protection in Defender for Office 365
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0014
This query helps reviewing count of spoof and impersonation detections done per sender IP
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0014
This query helps report on email access by administrators
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0014
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