Suspicious M365 Sign-In With axios Automation User-Agent (via azure)

ATT&CK techniques

Initial Access → Defense Evasion

Recon
Resource Dev
Initial Access
- T1078.004Cloud Accounts
Execution
Persistence
- T1078.004Cloud Accounts
Priv Esc
- T1078.004Cloud Accounts
Defense Evasion
- T1078.004Cloud Accounts
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects Azure AD sign-in activity presenting an axios HTTP client user-agent, observed during adversary-in-the-middle session token phishing against M365. Legitimate interactive users do not sign in with the axios library user-agent. Automated access with stolen session tokens indicates account takeover and mailbox abuse.

Reporting behind it

Related detections9 linkedT1078.004 — drag to rearrange

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Suspicious M365 Sign-In With axios Automation User-Agent (via azure)

Pivot detection · T1078.004 · 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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