ETH / EGGINU
fee 0%- Swap ETH → EGGINUhook takes 1%
- Swap EGGINU → ETHhook takes 1%
- Add, then remove liquiditycame back whole
pool 0x5deb50dff193e1bc1ad555c3f13a8b8a8e104508844bcea83d2a25480829fd6c
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
3 pools use this hook, the first one 6 d ago.
The address enables after swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
It takes 1% on top of the pool fee.
Liquidity added and removed in the same block came back whole.
A fixed fee of 0%, written in the pool key.
No owner() but it has claimPending, collectFees.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
3 pools, first seen 6 days ago.
Measured at block 93,487,523. 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 0x5deb50dff193e1bc1ad555c3f13a8b8a8e104508844bcea83d2a25480829fd6c
pool 0xf972d64844a81301d12d31d5cc3e891414eea9a5e36beb146e70e277fc76c0db
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.