Impossible travel event observed from 1Password user

1password

Classification:

attack

Tactic:

TA0001-initial-access

Technique:

T1078-valid-accounts

Set up the 1password integration.

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Goal

Detect an Impossible Travel event from a 1Password user.

Strategy

The Impossible Travel detection type’s algorithm compares the GeoIP data of the last log and the current log to determine if the user (@usr.email) traveled more than 500km at over 1,000km/h.

Triage and response

  1. Determine if {{@usr.email}} should be connecting from {{@impossible_travel.triggering_locations.first_location.city}},{{@impossible_travel.triggering_locations.first_location.country}} and {{@impossible_travel.triggering_locations.second_location.city}}, {{@impossible_travel.triggering_locations.second_location.country}} in a short period of time.
  2. If the user should not be connecting from {{@impossible_travel.triggering_locations.first_location.city}}, {{@impossible_travel.triggering_locations.first_location.country}} or {{@impossible_travel.triggering_locations.second_location.city}}, {{@impossible_travel.triggering_locations.second_location.country}}, then consider isolating the account and resetting their credentials.
  3. Use the Cloud SIEM - User Investigation dashboard to audit any user actions that may have occurred after the illegitimate login.