Abstract: A frequency-variable anti-virus technology relates to a method and apparatus for dynamically adjusting an amount of system resources occupied by security protection software running on a user device. The method comprises: collecting, by the security protection software, state information associated with the user device; calculating the expected operating intensity of the security protection software based on the state information; and operating the security protection software based on the calculated expected operating intensity, so as to adjust the amount of system resources occupied by the security protection software. The apparatus may comprise means for performing the abovementioned steps, respectively.

Abstract: The present invention discloses a method and apparatus for automatically protecting computers against harmful programs. The method comprises: restricting an object program from accessing some resources in a computer system based on predetermined resource access rules; scanning computer resources accessed by the object program to determine whether the accessed computer resources are infected by the object program; and analyzing malicious behaviors based on behavior characteristics of the object program to determine whether the object program is a harmful program.