Suspicious 1Phish Kit Session API Harvesting Credentials and OTP

ATT&CK techniques

Initial Access → Cred Access

Recon
Resource Dev
Initial Access
- T1566.002Spearphishing Link
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1111Multi-Factor Authentication Interception
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects requests to the 1Phish kit session API paths that collect credentials, one-time passcodes, and recovery codes from victims. The kit exposes structured api session endpoints keyed by session id to stage each stolen factor as the phishing flow progresses. Traffic to these session credential, otp, and recovery routes indicates an active 1Phish deployment harvesting authentication material.

Reporting behind it

Related detections9 linkedT1566.002 — drag to rearrange

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Suspicious 1Phish Kit Session API Harvesting Credentials and OTP

Pivot detection · T1566.002 · 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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