Daugava is classified as a potentially unwanted adware program which will inject a great deal of pop-up ads and links on every webpage you visit. The program is ad-supported, because its target is to generate pay-per-click revenue. So it would constantly promote commercial ads to attract your to click on them. Then, they could gain web traffic. However, most of those ads or links are bogus information, it is just a stunt. When installed, it will start bringing you many chaos.