The AresLookup utility is a tool designed to target Mac computers. At first glance, this application may seem like a tool that would help enhance one's search results. However, this is not the case most certainly, as malware researchers have classified the AresLookup utility as adware.
Many adware programs compromise user's systems by masking themselves as an application update that needs to be applied or an application download. In the case of the AresLookup adware program, the user is presented with a window titled 'Flash Player Installer' that urges them to install the application. Some adware utilities are bundled up with useful free applications. If the users try to install the application they were interested in and fail to pay attention during the installation process initially, they are likely to agree to install adware programs or various PUPs (Potentially Unwanted Programs). If you have installed the AresLookup adware program on your Mac, knowingly or unknowingly, you are likely to have experienced spam advertisement every time you tried to browse the Web. The AresLookup utility would place advertisements on the Web pages you visit. The advertisements may come in the shape of pop-up windows, banners, hyperlinks, alerts, etc.
Having adware programs installed on your computer is not recommended, as they may reduce the quality of your browsing experience. It is best to remove the AresLookup adware program from your Mac with the help of a genuine anti-malware application.