If you downloaded anything from that scammer called limitless, that is probably the trojan.
I don't think it was him:
root@minermom:/opt/yacpuminer# grep -R 31.170.160.169 .
root@minermom:/opt/yacpuminer# grep -R netne .
root@minermom:/opt/yacpuminer# grep -R "31.170" .
root@minermom:/opt/yacpuminer# grep -R "bitcoin" .
./NEWS: usage on upstream bitcoind / pool server.
./cpu-miner.c: /* obtain new work from bitcoin via JSON-RPC */
./cpu-miner.c: /* submit solution to bitcoin via JSON-RPC */
./README: https://bitcointalk.org/index.php?topic=55038.0
root@minermom:/opt/yacpuminer#
Not turning up any results in the source at
https://github.com/ali1234/cpuminer. He could have tried disguising it more though.