The Tencent Yuzhi Threat Intelligence Center issued a statement today that with the soaring bitcoin, pushing up the price of the entire digital cryptocurrency, the mining horses closely related to the currency market began a new round of activity. The mining trojan gets a "currency" reward for the digital cryptocurrency system by completing a lot of calculations. From the beginning of the year to March, the mining trojans were the most active, with a daily production of 150,000 mining horses; the number of mining horses was reduced in April; and in June, the number of samples was about 60,000. Mining horses will expand rapidly when the digital tokens heat up, and will slowly cool down when the digital tokens are cold. The total size of the mining Trojan sample is a large proportion of all virus Trojan species and is the most common type of virus in recent years. From the mining horse incident in the first half of 2019, it was found that although the number of new mining Trojans was less than 2018, some families had a rapid and continuously updated version, which indicates that the black workers are not focused on doing this. “One hammer” trading, but the idea of continuous operation and improved Trojans, rapid iteration. Tencent Yujian observed that the functional design of the mining Trojan is more and more complicated, and it is constantly innovating in terms of hidden techniques and attack techniques, and the technical confrontation with the soft-killing manufacturers is continuously enhanced. Therefore, the Tencent Yuzhi Threat Intelligence Center believes that the large-scale known mining Trojans in the second half of 2019 will continue to appear, and new mining Trojans will continue to emerge.