Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Identify when the http delete method is being called within the Microsoft Graph API.
Identify the use GraphRunner's Invoke-DumpApps function to collect applications and external apps as well as users that consented to permissions in their apps.
Identify the use of the GraphRunner recon command Invoke-GraphRecon with the permission enum flag set, providing allowed actions and conditional access data for the current user.
Identify the enumeration of members within groups in Entra ID. This is based on GraphRunner Get-SecurityGroups function behavior so modifications may be needed for other scenarios
This detects when the groups endpoint is called in the Graph API. GraphRunner contains a function called Get-DynamicGroups but other tools may as well.
Identify the use of the user API call to collect a listing of users. This can be chatty due to other commands calling this single API.
Identify the use of the application API call to collect a listing of applications in Entra ID. This can be chatty due to other commands calling this single API.
Identify a 400 bad request to the groups endpoint in the MS Graph API. GraphRunner's Invoke-SecurityGroupCloner function will trigger this if it fails to duplicate a group.
This detects when the search/query endpoint is called which can be used for enumeration of items like SharePoint site URLs. GraphRunner contains a function called Get-SharePointSiteURLs but other tools may as well.
Identify enumeration of inboxes across the Entra ID tenant. This detection is based on the Invoke-GraphOpenInboxFinder in GraphRunner but the concepts are applicable to other tools that scan for accessible inboxes.
Identify the enumeration of both the users and members of groups in the Entra ID tenant. While these are two separate functions in GraphRunner, they are often run in support of one another.
Detects ADDInternals Cmdlet execution. A tool for administering Azure AD and Office 365. Which can be abused by threat actors to attack Azure AD or Office 365.
Detects ADDInternals Cmdlet execution. A tool for administering Azure AD and Office 365. Which can be abused by threat actors to attack Azure AD or Office 365.
Detects network connections made by non-browser processes to public IP lookup services. This activity can indicate an adversary performing discovery to understand the external IP address of a compromised system, often as a post-compromise internet connectivity test or for reconnaissance purposes.
Detects usage of NimScan, a portscanner utility.
In early 2025, adversaries were observed using this utility to scan for open ports on remote hosts in a compromised environment.
This rule identifies the execution of NimScan based on the process image name and specific hash values associated with different versions of the tool.
In early 2025, adversaries were observed using this utility to scan for open ports on remote hosts in a compromised environment.
This rule identifies the execution of NimScan based on the process image name and specific hash values associated with different versions of the tool.
This rule detects when an SNMP OID request is made to an OpenCanary honeypot's SNMP service. This indicates an adversary is likely performing reconnaissance to gather information about the network or devices, potentially looking for vulnerabilities or sensitive data.
This rule detects when a single user generates an excessive number of 'Permission Denied' events within a one-hour timeframe in Google Cloud Platform (GCP). Specifically, it looks for more than 5 'BLOCK' actions with a severity of 'ERROR' and a status code of '7' (which typically indicates 'Permission Denied' in GCP API errors) from a single user. Additionally, it requires these events to span across more than one target application and more than one product event type, which helps to reduce false positives by indicating broader activity rather than a single, isolated error.
Detects the creation of new files with the ".evtx" extension in non-common or non-standard locations. This could indicate tampering with default EVTX locations to evade security controls or exfiltration of event logs to search for sensitive information. Note that backup software and legitimate administrators might perform similar actions during troubleshooting.
This rule detects when an Entra ID application has a significant increase in the number of assigned permissions within a short timeframe (5 minutes). This could indicate a "greedy permission grab" by an attacker attempting to escalate privileges or gain broader access to resources. The rule specifically looks for an increase of more than 8 permissions compared to the previous state. It does not compare the specific permissions, only the count.
This rule detects an excessive number of 'AccessDenied' events within a one-hour timeframe originating from a single AWS IAM user. This behavior can indicate an adversary attempting to discover cloud infrastructure and resources by making numerous API calls that they do not have permissions for. The rule specifically looks for more than 5 'AccessDenied' events, involving more than one target application and more than one product event type, from the same user within an hour.
This rule detects an excessive number of successful AWS API calls related to discovery activities (e.g., Describe*, List*, Get*) originating from a single IAM user within a 5-minute timeframe. This behavior can indicate an adversary attempting to map out the cloud environment after gaining initial access.
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