Suspicious Azure NSG Rule Opening SSH to the Internet
- Product
- azure
- Service
- activitylogs
- Author
- HuntRule
- Published
- 2026-05-16
- Updated
- 2026-08-28
ATT&CK techniques
ExecutionRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects creation or modification of a Network Security Group rule that exposes SSH port 22 to any source address, the network-backdoor action performed in the Azure Fabric intrusion to enable inbound remote access. Opening management ports to 0.0.0.0/0 is a high-risk change and a common cloud persistence step.
Reporting behind it
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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Also included
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