After hooking a Survivor, Pop Goes the Weasel activates for the next 35/40/45 seconds:

Performing the Damage Generator Action on a Generator instantly regresses it by -20 percent of its current Progression, after which normal Regression applies.

At the start of the Trial, the Auras of all Survivors are revealed to you for 7/8/9 seconds.
Extends the duration of a Survivors Aura being revealed to you by +2 seconds.
Lethal Pursuer benefits from its own effect.

The Auras of Survivors, who are healing or being healed, are revealed to you when they are within a range of 20/24/28 meters.

Crows startled by Survivors within 20/28/36 meters alert you with a Loud Noise Notification.
Spies from the Shadows has a cool-down of 5 seconds between alerts.