addware removal

After running a scan I seem to have addware. What is the best way to remove this? I have copied the report and pasted it here.

EtreCheck version: 4.1 (4A162)

Report generated: 2018-03-01 18:13:42

Download EtreCheck from https://etrecheck.com

Runtime: 2:54

Performance: Excellent

Problem: Computer is too slow

Major Issues:

Anything that appears on this list needs immediate attention.

Adware - Adware detected.

Adware:

Launchd: ~/Library/LaunchAgents/Arcahol.btvlit.plist

Reason: Adware name match

Executable: ~/Library/Application Support/Arcahol/Arcahol.app/Contents/MacOS/AppIR -trigger ltvbit -isDev 0 -installVersion 688 -firstAppId 1467728656410632 -identity Arcahol

Launchd: ~/Library/LaunchAgents/Arcahol.disable.plist

Reason: Adware name match

Executable: ~/Library/Application Support/Arcahol/Arcahol.app/Contents/MacOS/AppIR -trigger disable -isDev 0 -installVersion 688 -firstAppId 1467728656410632 -identity Arcahol

Launchd: ~/Library/LaunchAgents/pronto.notification.plist

Reason: Adware name match

Executable: ~/Library/Application Support/ProntoApp/ProntoApp.app/Contents/MacOS/ProntoApp -trigger notification -app_name ProntoApp -emid 3c392420ea203826b8d39e8e9ff9eaea

Launchd: ~/Library/LaunchAgents/pronto.update.plist

Reason: Adware name match

Executable: ~/Library/Application Support/ProntoApp/ProntoApp.app/Contents/MacOS/ProntoApp -trigger update -app_name ProntoApp

Launchd: ~/Library/LaunchAgents/Arcahol.uadpte.plist

Reason: Adware name match

Executable: ~/Library/Application Support/Arcahol/Arcahol.app/Contents/MacOS/AppIR -trigger update -isDev 0 -installVersion 688 -firstAppId 1467728656410632 -identity Arcahol -sig ILAN_RAMBAM_SIGNATURE -agentUpdate 0

Launchd: ~/Library/LaunchAgents/Arcahol.dolnwoad.plist

Reason: Adware name match

Executable: ~/Library/Application Support/Arcahol/Arcahol.app/Contents/MacOS/AppIR -trigger download -isDev 0 -installVersion 688 -firstAppId 1467728656410632 -sig ILAN_RAMBAM_SIGNATURE -identity Arcahol

Launchd: ~/Library/LaunchAgents/Smokyashan.update.plist

Reason: Adware name match

Executable: ~/Library/Application Support/Smokyashan/Smokyashan.app/Contents/MacOS/AppNOS -trigger update -isDev 0 -installVersion 607 -firstAppId 1434976216979282 -identity Smokyashan -sig NOSIGNATURE_SIGNATURE -agentUpdate 2

Launchd: ~/Library/LaunchAgents/Arcahol.AppVemoral.plist

Reason: Adware name match

Executable: ~/Library/Application Support/Arcahol/Arcahol.app/Contents/MacOS/AppIR -trigger AppRemoval -isDev 0 -installVersion 688 -firstAppId 1467728656410632 -identity Arcahol

Safari Extension: Arcahol

Reason: Adware name match

Unsigned Files:

Launchd: /Library/LaunchDaemons/com.adobe.fpsaud.plist

Executable: /Library/Application Support/Adobe/Flash Player Install Manager/fpsaud

Details: Exact match found in the whitelist - probably OK

Launchd: ~/Library/LaunchAgents/com.valvesoftware.steamclean.plist

Executable: ~/Library/Application Support/Steam/SteamApps/steamclean

Details: Exact match found in the whitelist - probably OK