Accidentally posted.
My Jan 30, 2020 virus infection and removal experience might be useful.
How to catch the virus
Enter in Google “care solutions for elders”. In the results below the ad, find “Care Solutions for Elders - Home | Facebook”. Clicking on this entry brings you to the Facebook page containing the virus link. Clicking (don't do this) http://www.caresolutionsforelders.com on the Facebook page, after many website switches in the address bar, brings you to the familiar "Your current Adobe Flash Player version is out of date.” Please close the webpage before this.
Adobe plans to end support for Flash Player on December 31, 2020.
In addition to
~/Library/LaunchAgents
/Library/LaunchDaemons
/Library/LaunchAgents
Inspect and repair the browsers Safari, Chrome, and Firefox, the Applications folder, the Downloads folder, and System Preferences.
Downloads
Note the date & time on the Adobe Flash installer, and then delete, along with any other installers with the same time stamp. Empty the Trash.
Applications
Delete the application with the same time stamp. In my case that was “SystemNotes.app”, although the virus perpetuators may vary the name. Empty the Trash.
System Preferences
Delete the profile entry “SmartSignalSearch” in “System Preferences->Profiles”. The name my vary.
Safari
Safari->Preferences->Extensions
Delete the extension with the “SafeSearch” label.
Safari->Preferences->Privacy->Manage Website Data
Delete the cookies immediately related to the spammer site. Use the “Search” box.
“caresolutionsforelders.com”
“tncrun.net”
“trackingsys.tech”
“mainsourceoffreeupdate.best”
“akamaihd.net”
Quit Safari
Chrome
In Chrome preference settings: under “Search engine”. See “chrome://settings/search” in the “Chrome” bar at the top of the page.
Select “Search engine” in the list below “Settings” on the left side of the page.
Find “Search engine used in the address bar”
Click the “Disable” button to the right of the text “SmartSearchSignal is controlling this setting”
Select the desired search engine from the popup list. Do not select the bogus “Default”!
Find “Manage search engines”
Find “Other search engines” appended to the bottom of the list.
Find the search engine labeled “Default Search” which uses the url starting with “http://ikysearchds…”
Click to the right on the three vertical dots and select “Remove from list”
Select “Default browser” in the list below “Settings” on the left side of the page.
Clicking “Make default” will make Google Chrome the default browser launched when clicking on a link in an email.
Safari will no longer launch automatically.
Select “On startup” in the list below “Settings” on the left side of the page.
Find “Open the New Tab page”
Click the “Disable” button to the right of the text “SmartSearchSignal is controlling this setting”
Find “Open a specific page or set of pages”
Find “Any Search” with the text “http://ikysearchds…”
Click to the right on the three vertical dots and select “Remove”
Quit Chrome.
Firefox
Start Firefox, then select Preferences->General.
Delete the “Home Page” text http://lkysearchds4743-a.akamaihd.net/…”, then default home page is Mozella.
Quit Firefox
That’s all of the infection I’ve found so far.