See this:
Unsigned Files:
Launchd: ~/Library/LaunchAgents/com.AssistiveFile.service.plist
Executable: ~/Library/Application Support/.9780954742548601157/Services/com.AssistiveFile.service/AssistiveFile.service -s 6600
Details: Executable file is hidden - possibly adware
Launchd: ~/Library/LaunchAgents/com.8250209770112325633.plist
Executable: ~/Library/Application Support/com.11872998749304589997/4027668095275677985 B1B434FF-FE49-5C7B-B5A8-4852428F32B0 1137
Details: Domain name invalid - possibly adware
Launchd: /Library/LaunchDaemons/com.10994683933603671667.64883274E90135B81FD5BCCD37F4C259632DC6AC348666D473E57980A055AABD.plist
Executable: /Library/Application Support/com.12592798363995974996/10382090412824701380 '/Library/Application Support/com.12592798363995974996/16117774811751782018' pjlhfnpcdklhijpmdmahnhmldlbegbmn 'Profile 1,Profile 2,Default' '/Library/Application Support/com.12592798363995974996/14896926111128528095' B1B434FF-FE49-5C7B-B5A8-4852428F32B0
Details: Domain name invalid - possibly adware
Launchd: /Library/LaunchDaemons/com.AssistiveFile.system.plist
Executable: /Library/Application Support/.9780954742548601157/System/com.AssistiveFile.system/AssistiveFile.system -t com.AssistiveFile.system
Details: Executable file is hidden - possibly adware
You can run Etrecheck again and follow the instructions to remove the adware.
If that does not work, we can give instructions for removing these files manually.