Suspicious Active Directory Subnet Enumeration via ADFind Subnets Query (via process_creation)

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1016System Network Configuration Discovery
- T1018Remote System Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects ADFind querying the configuration Subnets container with the subnets switch, the network-topology reconnaissance run in this multi-gang intrusion to map site subnets before lateral movement. Adversaries use ADFind to enumerate the directory Subnets object and understand the network layout for targeting, so this specific subnets query is a strong discovery indicator.

Reporting behind it

Related detections9 linkedT1016 — drag to rearrange

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Suspicious Active Directory Subnet Enumeration via ADFind Subnets Query (via process_creation)

Pivot detection · T1016 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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