3rd hand on villain. Complete unknown.

PokerStars - $0.10 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

UTG: $28.74
MP: $10.39
CO: $10.78
Hero (BTN): $10.00
SB: $3.65
BB: $16.52

SB posts SB $0.05, BB posts BB $0.10

Pre Flop: (pot: $0.15) Hero has K A

fold, MP raises to $0.30, fold, Hero raises to $0.90, fold, fold, MP calls $0.60

Flop: ($1.95, 2 players) K 7 5
MP checks, Hero bets $1.10, MP raises to $9.49 and is all-in, Hero ???

Apologies if this is a standard hand. I'm just not sure what to do here in this spot against an unknown.