I blocked spam referral n social traffic sites but daily attack from different sites so give me solution for it whether blocking country traffic helps or not.
You can exclude traffic originating from a specific country via an Advanced Segment. In the Advanced Segment creation interface you'll add the Dimension "Country", then select "Not containing" in the pulldown menu, then type the country name you wish to exclude in the text field.
Using a filtered view, you can consolidate the countries of a sales region into it's respective region name. In this way, you can track data from a region that is spread across multiple countries. OR Use Region-Specific Reporting You can also track data from smaller geographical regions such as specific cities, states, or individual countries. To view statistics from these types of regions, use the following Include filter: