Techniques › T1539 › AN1406
AN1406 Analytic 1406
SaaS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects use of session cookies or authentication tokens from unusual user agents or locations. Identifies token reuse without reauthentication or attempts to bypass MFA using previously stolen cookies.</p>
- Detects
- T1539 Steal Web Session Cookie
- Part of
- DET0509 Detection of Web Session Cookie Theft via File, Memory, and Network Artifacts
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| saas:googleworkspace | login with reused session token and mismatched user agent or IP | DC0002 User Account Authentication |
| saas:okta | session.token.reuse | DC0067 Logon Session Creation |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
TokenReuseTimeWindow | Max allowed delta between token issuance and second use |
UserAgentAnomalyScore | Deviation score from normal browser/device fingerprint |
GeoLocationAnomalyScore | Deviation in IP region or ASN per user profile |