Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects unauthorized attempts to disable, delete, or weaken AWS CloudTrail logging and supporting infrastructure. This includes stopping log delivery, deleting trails, reducing scope via event selectors, removing VPC flow logs or CloudWatch log groups, and unauthorized administrative actions against the S3 bucket designated for CloudTrail logs.
Detects unauthorized attempts to disable, delete, or weaken AWS CloudTrail logging and supporting infrastructure. This includes stopping log delivery, deleting trails, reducing scope via event selectors, removing VPC flow logs or CloudWatch log groups, and unauthorized administrative actions against the S3 bucket designated for CloudTrail logs.
Detects administrative actions in Azure that disable or modify diagnostic settings, which stops the flow of logs to services like Azure Sentinel/Log Analytics, or deletes policy assignments. Such actions are often performed by adversaries to blind security operations monitoring prior to lateral movement or further malicious activity.
This rule detects administrative actions in GCP that involve modifying or deleting Cloud Logging sinks, or disabling specific services, with a specific focus on disabling the logging service itself. Adversaries may perform these actions to tamper with audit trails and evade detection of malicious activities.
Detects administrative actions in Azure that disable or modify diagnostic settings, which stops the flow of logs to services like Azure Sentinel/Log Analytics, or deletes policy assignments. Such actions are often performed by adversaries to blind security operations monitoring prior to lateral movement or further malicious activity.
This rule detects modifications to AWS CloudTrail configurations that reduce logging visibility, such as stopping the logging service, deleting a trail, or updating a trail to include restrictive event selectors (e.g., non-multi-region, read-only events, or excluding management events). These actions are indicative of an attacker attempting to evade detection by limiting the audit trail available to security analysts.
Detects modifications to AWS CloudTrail logging configurations, specifically changes to trails or subscription filters that could be used to suppress, redirect, or disrupt the collection of audit logs, potentially masking malicious activity.
Detects unauthorized attempts to stop, delete, modify, or change event selectors for AWS CloudTrail logs. This activity is indicative of an attacker attempting to disable audit logging to evade detection while performing further malicious actions in the environment.
Detects unauthorized attempts to disable, suppress, or modify security monitoring services in AWS, including GuardDuty, Security Hub, and AWS Config. This rule monitors for API calls that effectively reduce cloud visibility or detection capabilities, explicitly excluding actions performed by authorized security-engineering roles.
Detects unauthorized attempts to delete or purge critical Salesforce audit logs, including the Setup Audit Trail, Login History, and Event Monitoring log files. This behavior is indicative of anti-forensic activity, often utilized by threat actors such as ShinyHunters to destroy audit evidence following unauthorized access, data export, or credential manipulation.
Detects the deletion of GitHub workflow logs that occur in close temporal proximity to sensitive operations such as secret access or package publication. The rule also flags deletions associated with workflow names containing AI-themed keywords, which may indicate an attempt to conceal malicious automation or activity.
Detects attempts to tamper with, disable, or delete audit logging configurations in AWS CloudTrail and Azure Monitor. Monitoring these activities is critical to ensure that audit logs remain intact for security investigations.
Detects attempts to disable audit logging features in Microsoft 365, specifically mailbox auditing (via Set-Mailbox) or unified audit log ingestion (via Set-AdminAuditLogConfig). Disabling these features can be a precursor to unauthorized activities, as it prevents the capture of user actions and administrative changes.
Detects AWS Config Service disabling
Detects disabling, deleting and updating of a Trail
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.
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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