kevmap

TechniquesT1606.001 › AN0487

AN0487 Analytic 0487

SaaS · attack.mitre.org · ATT&CK Enterprise v19.2

<p>Forged cookies in SaaS environments manifest as valid web sessions without matching login activity, MFA enforcement bypass, or cookies reused across multiple devices/IPs. Defenders should look for cookie replay, concurrent sessions from multiple geographies, or session tokens generated by unrecognized apps.</p>
Detects
T1606.001 Web Cookies
Part of
DET0171 Detection Strategy for Forged Web Cookies

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 sourceChannelData component
m365:unifiedSession activity without correlated login eventDC0007 Web Credential Usage
saas:accessMultiple concurrent logins using same cookie from different locationsDC0067 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.

FieldDescription
TokenReplayThresholdNumber of concurrent uses of a cookie that should trigger an alert.
GeoLocationAlertsUnusual SaaS logins from geographically distant locations in short timeframes.