Lavasoft Ad Aware Web Companion

I accidentally installed Lavasoft Ad Aware Web Companion while updating another program. I uninstalled it through the Windows Control Panel, but even after that my computer has continued to behave strangely (eg. new extensions being automatically added to Chrome without my approval, computer getting slower) and I have noticed that there are still some elements left in the registry. Therefore I'd like to know if some malware has infected my PC. Could you help me?

Welcome aboard

 

Download Security Check from here or here and save it to your Desktop.

• Double-click SecurityCheck.exe
• Follow the onscreen instructions inside of the black box.
• A Notepad document should open automatically called checkup.txt; please post the contents of that document.

NOTE 1. If one of your security applications (e.g., third-party firewall) requests permission to allow DIG.EXE access the Internet, allow it to do so.
NOTE 2. SecurityCheck may produce some false warning(s), so leave the results reading to me.
NOTE 3. If you receive UNSUPPORTED OPERATING SYSTEM! ABORTED! message restart computer and Security Check should run

Please download Farbar Service Scanner (FSS) and run it on the computer with the issue.

• Make sure the following options are checked:
  
  • Internet Services
  • Windows Firewall
  • System Restore
  • Security Center/Action Center
  • Windows Update
  • Windows Defender
  • Other Services
• Press "Scan".
• It will create a log (FSS.txt) in the same directory the tool is run.
• Please copy and paste the log to your reply.

Please download MiniToolBox and run it.

Checkmark following boxes:

• Report IE Proxy Settings
• Report FF Proxy Settings
• List content of Hosts
• List IP configuration
• List Winsock Entries
• List last 10 Event Viewer log
• List Installed Programs
• List Devices (do NOT change any settings here)
• List Users, Partitions and Memory size
• List Restore Points

Click Go and post the result.

Please download Malwarebytes to your desktop.

• Double-click MBSetup-076981.076981-4.5.14.exe and follow the prompts to install the program.
• Then click Finish.
• Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
• If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
• When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
• Restart your computer when prompted to do so.
• The Scan log is available throughout History ->Application logs. Please post it contents in your next reply.

Download Malwarebytes Anti-Rootkit (MBAR) to your desktop.

• Warning! Malwarebytes Anti-Rootkit needs to be run from an account with administrator rights.
• Double click on downloaded file. OK self extracting prompt.
• MBAR will start. Click "Next" to continue.
• Click in the following screen "Update" to obtain the latest malware definitions.
• Once the update is complete select "Next" and click "Scan".
• When the scan is finished and no malware has been found select "Exit".
• If malware was detected, make sure to check all the items and click "Cleanup". Reboot your computer.
• Open the MBAR folder located on your Desktop and paste the content of the following files in your next reply:
  
• "mbar-log-{date} (xx-xx-xx).txt"
• "system-log.txt"

NOTE. If you see This version requires you to completely exit the Anti Malware application message right click on the Malwarebytes Anti-Malware icon in the system tray and click on Exit.

Please download Rkill (courtesy of BleepingComputer.com) to your desktop.
There are 2 different versions. If one of them won't run then download and try to run the other one.
You only need to get one of these to run, not all of them. You may get warnings from your antivirus about this tool, ignore them or shutdown your antivirus.

rKill.exe: http://www.bleepingcomputer.com/download/rkill/dl/10/
iExplore.exe (renamed rKill.exe): http://www.bleepingcomputer.com/download/rkill/dl/11/

• Double-click on the Rkill desktop icon to run the tool.
• If using Windows Vista, 7 or 8 right-click on it and choose Run As Administrator.
• A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.
• If not, delete the file, then download and use the one provided in Link 2.
• Do not reboot until instructed.
• If the tool does not run from any of the links provided, please let me know.

If normal mode still doesn't work, run the tool from safe mode.

When the scan is done Notepad will open with rKill log.
Post it in your next reply.

NOTE. rKill.txt log will also be present on your desktop.

NOTE Do NOT wrap your logs in "quote" or "code" brackets.
Do NOT use spoilers.
Do NOT edit your reply to post additional logs. Create new reply. I'll not get any email notifications about edits so I won't know you posted something new.

SECURITY CHECK

 

Download Temp File Cleaner (TFC)
Alternate download: http://www.itxassociates.com/OT-Tools/TFC.exe
Double click on TFC.exe to run the program.
Click on Start button to begin cleaning process.
TFC will close all running programs, and it may ask you to restart computer.

Please download AdwCleaner by Xplode and save to your Desktop.

• Double click on AdwCleaner.exe to run the tool.
  Vista/Windows 7/8 users right-click and select Run As Administrator
• The tool will start to update the database if one is required.
• Click on the Scan button.
• AdwCleaner will begin...be patient as the scan may take some time to complete.
• After the scan has finished, click on the Logfile button.
• A window will open which lists the logs of your scans.
• Click on the Scan tab.
• Double-click the most recent scan which will be at the top of the list....the log will appear.
• Review the results...see note below
• After reviewing the log, click on the Clean button.
• Press OK when asked to close all programs and follow the onscreen prompts.
• Press OK again to allow AdwCleaner to restart the computer and complete the removal process.
• After rebooting, a logfile report (AdwCleaner[CX].txt) will open automatically (where the largest value of X represents the most recent report).
• To open a Cleaning log, launch AdwareClearer, click on the Logfile button, click on the Cleaning tab and double-click the log at the top of the list.
• Copy and paste the contents of AdwCleaner[CX].txt in your next reply.
• A copy of all logfiles are saved to C:\AdwCleaner.

-- Note: The contents of the AdwCleaner log file may be confusing. Unless you see a program name or entry that you recognize and know should not be removed, don't worry about it. If you see an entry you want to keep, return to AdwCleaner before cleaning...all detected items will be listed (and checked) in each tab. Click on and uncheck any items you want to keep.


Download Sophos Free Virus Removal Tool and save it to your desktop.

• Double click the icon and select Run
• Click Next
• Select I accept the terms in this license agreement, then click Next twice
• Click Install
• Click Finish to launch the program
• Once the virus database has been updated click Start Scanning
• If any threats are found click Details, then View log file... (bottom left hand corner)
• Copy and paste the results in your reply
• Close the Notepad document, close the Threat Details screen, then click Start cleanup
• Click Exit to close the program

Edited by leoshepard, 07 June 2018 - 11:52 AM.

Your computer is clean

1. This step will remove all cleaning tools we used, it'll reset restore points (so you won't get reinfected by accidentally using some older restore point) and it'll make some other minor adjustments...
This is a very crucial step so make sure you don't skip it.
Download DelFix by Xplode to your desktop. Delfix will delete all the used tools and logfiles.

Double-click Delfix.exe to start the tool.
Make sure the following items are checked:

• Activate UAC (optional; some users prefer to keep it off)
• Remove disinfection tools
• Create registry backup
• Purge System Restore
• Reset system settings

Now click "Run" and wait patiently.
Once finished a logfile will be created. You don't have to attach it to your next reply.

2. Make sure Windows Updates are current.

3. If any trojans, rootkits or bootkits were listed among your infection(s), make sure, you change all of your on-line important passwords (bank account(s), secured web sites, etc.) immediately!

4. Check if your browser plugins are up to date.
Firefox - https://www.mozilla.org/en-US/plugincheck/
other browsers: https://browsercheck.qualys.com/ (click on "Scan without installing plugin" and then on "Scan now")

5. Run Malwarebytes "Quick scan" once in a while to assure safety of your computer.

6. Run Temporary File Cleaner (TFC) and AdwCleaner weekly (you need to redownload these tools since they were removed by DelFix).

7. (optional) If you want to keep all your programs up to date, download and install FileHippo Update Checker.
The Update Checker will scan your computer for installed software, check the versions and then send this information to FileHippo.com to see if there are any newer releases.

8. When installing\updating ANY program, make sure you always select "Custom " installation, so you can UN-check any possible "drive-by-install" (foistware), like toolbars etc., which may try to install along with the legitimate program. Do NOT click "Next" button without looking at any given page.

9. Read:
How did I get infected?, With steps so it does not happen again!: http://www.bleepingcomputer.com/forums/topic2520.html
Simple and easy ways to keep your computer safe and secure on the Internet: http://www.bleepingcomputer.com/tutorials/keep-your-computer-safe-online/
About those Toolbars and Add-ons - Potentially Unwanted Programs (PUPs) which change your browser settings: http://www.bleepingcomputer.com/forums/t/407147/answers-to-common-security-questions-best-practices/#entry3187642

10. Please, let me know, how your computer is doing.

Thank you! You have been of enormous help

You're very welcome