Azure AD Graph Access with Suspicious User-Agent

Description

Identifies Azure AD Graph (graph.windows.net) requests originating from user-agent strings associated with offensive tooling, scripting libraries, or generic HTTP clients. First-party Microsoft components calling AAD Graph identify with specific user agents such as "Microsoft Azure Graph Client Library", "Microsoft ADO.NET Data Services", or "Microsoft.OData.Client". Anything outside that recognised set is either a developer prototyping against the legacy API or an enumeration tool walking the directory.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Office Suite SaaS Windows
The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.

Known benign triggers

Authorized red team or penetration test activity using ROADrecon, ROADtools, AADInternalsor similar tooling can match. Add exceptions on the source IP, signed-in user, or app ID after validation.
Developer activity prototyping against AAD Graph from a workstation may match. Validate via the calling `azure.aadgraphactivitylogs.properties.app_id` and the signed-in user; legitimate developer use is rare in production tenants since Microsoft has been steering callers off AAD Graph for years.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
github.com/dirkjanm/ROADtools	Tool	16from 2 sources
github.com/gerenios/aadinternals	Tool	Only this detection cites it
learn.microsoft.com/en-us/graph/migrate-azure-ad-graph-overview	Product documentation	6
www.sophos.com/en-us/research/tampering-with-conditional-access-policies-using-azure-ad-graph-api	Unclassified	Only this detection cites it

Detection rules

Azure AD Graph Access with Suspicious User-Agent

Description

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules