Many trojans and backdoors now have remote administration capabilities allowing an individual to control the victim's computer. Many times, a file (often called a client or stub) must be opened on the victim's computer before the hacker can have access to it.
quotient - the ratio of two quantities to be divided. 1  proportion - the quotient obtained when the magnitude of a part is divided by the magnitude of the whole. 2  ratio - the relative magnitudes of two quantities (usually expressed as a quotient)
In mathematics, a quotient is the result of division. For example, when dividing 6 by 3, the quotient is 2, while 6 is called the dividend, and 3 the divisor. The quotient further is expressed as the number of times the divisor divides into the dividend, e.g. 3 divides 2 times into 6. A quotient can also mean just the integer part of the result of dividing two integers.