unkown villain but apparently he knows me. what range could he possibly have here? If youre folding what do u need to call?

PokerStars Game #32700573621: Tournament #193236898, $10+$1 USD Hold'em No Limit - Level VIII (150/300) - 2009/09/11 0:11:20 ET
Table '193236898 95' 9-max Seat #3 is the button
Seat 1: elixxir (5700 in chips)
Seat 2: Stonz (16943 in chips)
Seat 3: PlayBananas (27510 in chips)
Seat 4: cashtorg (34450 in chips)
Seat 6: Ca$inoMagic (24917 in chips)
Seat 7: kalmate (14825 in chips)
Seat 8: areastm_19 (5790 in chips)
Seat 9: PompYouUp (3835 in chips)
elixxir: posts the ante 25
Stonz: posts the ante 25
PlayBananas: posts the ante 25
cashtorg: posts the ante 25
Ca$inoMagic: posts the ante 25
kalmate: posts the ante 25
areastm_19: posts the ante 25
PompYouUp: posts the ante 25
cashtorg: posts small blind 150
Ca$inoMagic: posts big blind 300
*** HOLE CARDS ***
Dealt to cashtorg [Ks Ah]
cashtorg said, "and i thought about folding"
kalmate: folds
areastm_19: folds
PompYouUp: folds
elixxir: folds
Stonz: folds
PlayBananas: folds
taddaeus is connected
Ca$inoMagic said, "cashtorg"
Ca$inoMagic said, "where you been?"
cashtorg: raises 500 to 800
Ca$inoMagic: raises 24092 to 24892 and is all-in
cashtorg: