cpuminer
A CPU miner for Litecoin, Bitcoin, and other cryptocurrencies
cpuminer is a multi-threaded, highly optimized CPU miner for Litecoin, Bitcoin, and other cryptocurrencies. Currently supported algorithms are SHA-256d and scrypt(N, 1, 1).
It supports the getblocktemplate mining protocol as well as the Stratum mining protocol, and can be used for both solo and pooled mining.
Notice: Please see here to understand why this package is recognized as a threat by some antivirus software: https://github.com/pooler/cpuminer/issues/13