Searchdmp1.com or Directions Maps Finder is an unsafe website that was made for monetization purposes. This malware tends to render online ads and redirects the affected browser to the promoted web address.
Redirecting to Search.landslidesearch.com implies that a browser hijacker hits your Mac computer. Unwanted displays of online ads and redirects are the top effects of this adware on the infected machine.
Auto Purge is a form of adware that list down as browser hijacker. It attacks known browser programs like Chrome, Firefox, Edge, or Internet Explorer by changing its default homepage, new tab, and search engine.
My Login Hub extension may have added to the browser, that is why home page, new tab, and your search engine is set to Hmyloginhub.co. This domain is a type of browser hijacker that needs to remove from the system.