在很短的时间内，我们开始发现其他用户的身份验证请求数量也在显著增长。

Within a short amount of time, we began to see several other users significantly increase their volume of authenticated calls.

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第1步是产生一个初始发行版供用户测试。

Step 1 is to get an initial release out for users to test.

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安装后，在手机用户毫不知情的情况下，木马以每条短信几美元在后台开始发送短信。

Once installed, the Trojan starts sending SMS messages behind the scenes that cost several dollars per message, without the device owner knowing it.

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