Binance Distributes Ethereum Fog (ETF)
According to the news on their website
The distribution of ETF (at a rate of 1 ETH:1 ETF) was based on a snapshot of ETH balances at Block 4,730,660, which was taken at 10:24:53 AM (UTC) on 2017/12/14.
In order to ensure the security of your assets, we will announce the opening of withdrawals for ETF after we deem the blockchain to be stable.