The ValueFromAmountWithFee function in itself is innocuous.
It seems to return the value of transaction in case that the tx fee exceeds the maximum.

To see where it is used to hide premine, I searched for line

Code:
ValueFromAmountWithFee(pindexBest->nMoneySupply)

The results are here

https://github.com/search?q=ValueFromAmountWithFee%28pindexBest-%3EnMoneySupply%29&type=Code&ref=searchresults

The first coin to pull the scam is
SHACoin

followed (knowingly or not) by
Evercoin
RainbowCoin
Asiacoin
xxxcoin

This clears Beecoin and Quarkbar of suspicion.