No. Kuyo is a customized game tool for Android players, with built-in GMS Google framework to help Android players play international service games easily, such as game king MD, DNF, etc. kuyo will be falsely reported as a virus by some anti-virus software, because the database of anti-virus software does not have the latest virus signature, or it misjudges kuyo's acceleration function. In fact, kuyo is not a virus software and can be used safely.