Detections

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

507 detections

Detects if the secret scanning feature is disabled for an enterprise or repository.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
003
Detects when an an application is removed from Google Workspace.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
1603
Detects successful deletion or disabling of an AWS GuardDuty detector, possibly by an attacker trying to avoid detection of its malicious activities.
Upon deletion, GuardDuty stops monitoring the environment and all existing findings are lost.
Verify with the user identity that this activity is legitimate.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
102
Detects the addition of a new module to an IIS server.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
002
Detects the removal of a previously installed IIS module.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
002
Detects when an access level is changed for a Google workspace application.
An access level is part of BeyondCorp Enterprise which is Google Workspace's way of enforcing Zero Trust model.
An adversary would be able to remove access levels to gain easier access to Google workspace resources.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
002
Detects changes to the bitbucket audit log configuration.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
Detects when a secret scanning allowlist rule is added for projects.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
Detects when a repository is exempted from secret scanning feature.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
Detects when a user creates action secret for the organization, environment, codespaces or repository.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
Detects when a modification (create, update or replace) action is taken that affects mutating or validating webhook configurations, as they can be used by an adversary to achieve persistence or exfiltrate access credentials.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
Detects changes to of the IIS server configuration in order to disable/remove the ETW logging/processing option.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
Detects changes to of the IIS server configuration in order to disable HTTP logging for successful requests.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
Detects when an application is modified or deleted.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
001
A self-hosted runner is a system that you deploy and manage to execute jobs from GitHub Actions on GitHub.com.
This rule detects changes to self-hosted runners configurations in the environment. The self-hosted runner configuration changes once detected,
it should be validated from GitHub UI because the log entry may not provide full context.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects when changes are made to the SSH certificate configuration of the organization.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects when a configuration change is made to an applications AppID URI.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects when a configuration change is made to an applications URI.
URIs for domain names that no longer exist (dangling URIs), not using HTTPS, wildcards at the end of the domain, URIs that are no unique to that app, or URIs that point to domains you do not control should be investigated.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Identifies when an organization doesn't have the proper license for PIM and is out of compliance.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects the deactivation of the SAP Security Audit Log (AUJ). This is a critical event as it stops further security logging.
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Google SecOps@GoogleSecOps
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Google SecOps Detection Rules
6 months ago
005
Detects when an Network Zone is Deactivated or Deleted.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
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