[CAD] $2000+ E-Transfer from Unknown Sender

This has never happened to me before, but here we are... over $2,000 CAD was auto-deposited into my account from someone I don’t know. Now the sender is messaging me across Facebook, Instagram, and LinkedIn asking me to e-transfer the money to an email.

I reported it to my bank, and they said it might be a genuine mistake, but couldn’t confirm anything. They told me I’d have to send the money back myself and accept the liability, which doesn’t sit right with me.

For obvious reasons, I’m highly suspicious that this is a scam… I’m being bombarded with messages and connection requests, and some of the messages are poorly written (like “the money I interned to send to my partner” and “I would be absolutely appreciate”). It just doesn’t add up.

Is this a scam? What would you do? Thank you in advance!