Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects the successful execution of the 'Run Command' action on Azure virtual machines outside of defined business hours (8 AM to 6 PM). Run Command allows the execution of arbitrary scripts on a VM, which can be leveraged for administrative tasks but also by attackers for post-exploitation activities, persistence, or lateral movement. Monitoring these operations during off-hours may indicate unauthorized use or anomalous administrative activity.
This rule detects potential automated credential stuffing attempts followed by successful authentication and subsequent access to sensitive/privileged APIs within Azure/Entra ID environments. It correlates multiple failed login attempts for service-oriented account names (e.g., svc, api, bot) with a successful login from the same user shortly thereafter, followed by privileged API operations (e.g., KeyVault secret access, user management) within a short time window.
Detects registration of potentially malicious OAuth applications in Azure AD
This rule identifies rapid, multi-category reconnaissance activity against the Microsoft Graph API. It specifically looks for bursts of 20 or more requests across 4 or more unique Graph API endpoints within a one-minute window, particularly when those requests include parameters like '$top=999', '$count=true', or target '/beta/' endpoints, which are indicative of attempts to extract maximum data or use less common API versions. This behavior is typified by threat actors like Tycoon 2FA operators.
Detects automated API calls listing secrets via GitHub Actions with high pagination, indicating a script enumerating organizational secrets.
Detects a spike in successful operations related to Azure Storage Account Keys by a single caller within a one-hour window. This could indicate an adversary attempting to enumerate, access, or exfiltrate storage account keys, or a legitimate user performing multiple key management activities.
Detects OAuth application registration or permission grant via Graph API
Detects suspicious AWS Lambda function invocations
Detects retrieval of secrets from AWS Secrets Manager
Detects bulk Azure AD user account enumeration via Graph API
This rule detects the creation of a new GitHub repository from a compromised endpoint, specifically looking for indicators of stolen credential exfiltration. The rule identifies GitHub application events where a repository is created and the raw event data contains keywords associated with credential dumping or specific campaign names like "Miasma" or "Spreading Blight". Automated exfiltration to GitHub is often fast and difficult to remediate, making prompt detection crucial. If triggered, it's recommended to revoke tokens used to create the repository and investigate the endpoint for compromise.
Detects bursts of Google Workspace device registrations for a single user in a short window, specifically when 3 or more devices are registered within a 1-minute interval for the same account.
This rule detects potential data exfiltration attempts or sensitive information disclosure through Microsoft Copilot Enterprise Search. It specifically looks for 'URLClick' actions from 'Microsoft Copilot Enterprise Search' where the raw event data contains a 'q=' parameter (indicating a query) and also contains keywords like 'extract', 'embed', or 'img'. This combination suggests that a user might be attempting to extract or embed content, potentially sensitive, via a Copilot search query, which could lead to data leakage.
Detects Graph API or SharePoint activity interacting with specific lists or a site GUID used by the jupyter-powerdev backdoor for Command and Control (C2) operations. This activity is indicative of the jupyter-powerdev malware leveraging SharePoint as a C2 channel.
Detects OAuth application registration or permission grant via Graph API
Detects access to Kubernetes secret objects containing sensitive configuration data
Detects access to Azure portal for cloud service dashboard discovery
Detects retrieval of secrets from AWS Secrets Manager
Detects the writing and subsequent deletion of Azure SQL firewall rules, a technique used to enable remote access and evade defenses. This behavior could indicate an adversary attempting to open up network access to an Azure SQL server and then remove the evidence of the rule change.
Identifies rapid retrieval of dozens of secrets from Azure Key Vaults within minutes by a single identity. This behavior can indicate an attacker attempting to exfiltrate credentials or sensitive information after gaining initial access to an Azure environment.
This rule detects an unusual spike in 'Export' or 'Download' operations within Azure Activity logs by a single caller. It triggers when a user performs 5 or more such operations within an hour, which could indicate data exfiltration attempts or suspicious data access patterns.
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