ETH / RM1227E2E
fee 2%- Swap ETH → RM1227E2Enothing taken
- Swap RM1227E2E → ETHhook takes 99%
- Add, then remove liquiditydeposit refused: Unauthorized
pool 0x23f5d209b156be7fc81f7857643626c2ae4e2bf71e5d2c7ba29bfe99ab8ff3e9
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
7 pools use this hook, the first one 48 d ago.
The address enables before remove liquidity. The hook is allowed to take; the next two checks measure whether it does.
It took 99.28% of a swap on top of the pool fee.
Closed to outside LPs: only the hook's own liquidity is in the pool.
A fixed fee, but a high one: 2%.
No owner() but it has withdrawCollectedPublicFees.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
7 pools over 48 days.
Measured at block 93,147,098. A hook with an owner or a dynamic fee can behave differently later; scan again before a large trade.
A v4 hook's permissions are the last fourteen bits of its address. The PoolManager calls only what they switch on.
A small swap each way and a liquidity round trip, run through the PoolManager and this hook inside a call that is never sent. The pool fee is expected; anything else missing is the hook.
pool 0x23f5d209b156be7fc81f7857643626c2ae4e2bf71e5d2c7ba29bfe99ab8ff3e9
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.