CookieMiner issues a series of commands to configure the victim’s machine to mine cryptocurrency and maintain persistence (Figure 6). The program xmrig2 is a Mach-O executable for mining cryptocurrency. As seen in Figure 7, the address “k1GqvkK7QYEfMj3JPHieBo1m7FUkTowdq6H” has considerable mining performance. It has been ranked as a top miner in the Maruru mining pool (koto-pool.work).­­­ The cryptocurrency mined is called Koto, which is a Zcash-based anonymous cryptocurrency. The has addresses in Figure 8 use the “Yescrypt” algorithm which is good for CPU miners but not ideal for GPU miners. This is ideal for malware as the victim hosts are not guaranteed to have discrete GPUs installed in them but are guaranteed to have a CPU available. We believe the malware authors may have intentionally used this filename to create confusion since the miner is actually mining the Koto cryptocurrency