File detected Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compile.exe

[eikqzx]

Hello, I have question about Malwarebytes always alert detected in Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compile.exe and I scan result is not detected.

Thank you for your help.

Addition.txt FRST.txt

[Maurice Naggar]

I will guide you along on looking for remaining malware. Lets keep these principles as we go along.

• Removing malware can be unpredictable
• Please don't run any other scans, download, install or uninstall any programs while I'm working with you.
• Only run the tools I guide you to.
• Do not run online games while case is on-going. Do not do any free-wheeling web-surfing.
• The removal of malware isn't instantaneous, please be patient.
• Cracked or or hacked or pirated programs are not only illegal, but also will make a computer a malware victim. Having such programs installed, is the easiest way to get infected. It is the leading cause of ransomware encryptions. It is at times also big source of current trojan infections. Please uninstall them now, if any are here, before we start the cleaning procedure.
• Please stick with me until I give you the "all clear".
• If your system is running Discord, please be sure to Exit out of it while this case is on-going.

 

• These are just first steps. 
• (1) Let's do one scan with Malwarebytes Adwcleaner to check for adwares. Just before pressing that "scan" button, be sure that Chrome & Edge, or other web browser are Closed.

It will not take much time, But do read all of this write-up first so that you fully understand the concept of this special run.

First download & save it
guide & download link

Then be sure to close all web browsers after the download & before launching the tool.

Then go to where the EXE file is saved. Start Adwcleaner.
Reply YES at the Windows prompt to allow the program to proceed and make changes. That is the usual Windows security prompt.

Take your time and go careful. There are some preliminary selections to be set ....before pressing any 'scan' button.

When AdwCleaner starts, on the left side of the window, click on “Settings” and then enable these repair actions on that tab-window
by clicking their button to the far-right for ON status

Delete IFEO keys
Delete tracing keys
Delete Prefecth files
Reset Proxy
Reset IE Policies
Reset Chrome policies
Reset Winsock

Now On the left side of the AdwCleaner window, click on “Dashboard” and then click “Scan” to perform a computer scan.

This can take several minutes.
When the AdwCleaner scan is completed it will display all of the items it has found. Click on the “Quarantine” button To remove what it found.

AdwCleaner will now prompt you to save any open files or data as the program will need to close any open programs before it starts to clean. 
Click on the “Continue” button to finish the removal process.

Guide article

Attach the clean log from Adwcleaner when all completed.

 

• (2) I would like a report set for review.   This is a report only.

Please download MALWAREBYTES MBST Support Tool

Once you start it click Advanced >>> then   Gather Logs

 Have patience till the run has finished.

Upload an archive once it is done. Attach the mbst-grab-results.zip from the Desktop.

 

• Please attach  mbst-grab-results.zip    to your reply
• The IP block actions by Malwarebytes are keeping the machine safe from potential threats.
• I do need the support zip reports to see more detail  

[eikqzx]

AdwCleaner scan found only PUP.Optional.Legacy in my AppData but is not detected aspnet_compiler.exe

mbst-grab-results.zip

[Maurice Naggar]

Thanks for the report set. The initial steps were not intended or meant as a cure-all. There is 'no single-step' solution. We will be doing several checks and scans, & runs. The Adwcleaner runs are good in that it removed some adwares ! which is a helpful start.

 Let us go forward with all that follows below. 

Take these actions so that Windows 11 is set to show all hidden files and folders.
Open File Explorer from the taskbar.

Select View > Show > Hidden items.

Select View → Show → File name extensions

• (2) Start Malwarebytes. Click Settings ( gear ) icon. Next, lets make real sure that Malwarebytes does NOT register with Windows Security Center

Click the Security Tab. Scroll down to

"Windows Security Center"

Click the selection to the left  for the line "Always register Malwarebytes in the Windows Security Center".
{ We want that to be set as Off   .... be sure that line's  radio-button selection is all the way to the Left.  thanks. }

This will not affect any real-time protection of the Malwarebytes for Windows    😃.

Close Malwarebytes.

>

• (3) The Microsoft Safety Scanner is a free Microsoft stand-alone virus scanner that can be used to scan for & remove malware or potentially unwanted software from a system. 

The download links & the how-to-run-the tool are at this link at Microsoft 

https://docs.microsoft.com/en-us/windows/security/threat-protection/intelligence/safety-scanner-download

 

Look on Scan Options & select  CUSTOM scan  & then select the C drive to be scanned.

Then start the scan. Have lots of patience. Once you start the scan & you see it started, then leave it be.  

• Once you see it has started, take a long long break;  walk away.  Do not pay credence if you see some intermediate early flash messages on screen display.  The only things that count are the End result at the end of the run.
• Again, any on-screen display about repeat 'infection' is not to be relied on.  Ignore those.
• We only rely on the end result that is on the log-report-file.

 

This is likely to run for many hours   ( depending on number of files on your machine & the speed of hardware.)

The log is named MSERT.log  

the log will be at  

Windows\debug\msert.log

Please attach that log with your reply. We will do more later.

[eikqzx]

result log it not detected anything or I just hallucinating about alert

msert.log

[Maurice Naggar]

Good result. However, do not disappear on me. I will be relaying to you additional (new) tasking. Meantime, no online or offline game playing. No loose web-surfing. No loose surfing to social media either.

[Maurice Naggar]

This next custom-fix is mainly intended to run Windows' SFC & DISM to check the system for integrity. To clear temporary cache on Edge & Chrome & Firefox. To rebuild the Winsock. To run some scans with MS Defender antivirus. To remove 1 suspicious VBS file.

This is not a cure-all. Rather, it is meant as general check & cleanup.

This custom script is for  EIKQZX  only / for this machine only.

• Please save the (attached file named) FIXLIST.txt   to the   Downloads  folder

Fixlist.txt <<< - - - - -

Please be sure to Close any open work files, documents,  any apps you started yourself  before starting this. THIS run will do a Windows RESTART. Once it starts it will auto-close any other running app.

We will use FRSTENGLISH.exe  on the Downloads folder    to run a custom script .    The system will be rebooted after the script has run. 

Start the Windows Explorer and then, go  to the Downloads   folder.

RIGHT click on FRSTENGLISH.exe    and select RUN as Administrator and allow it to proceed.  Reply YES when prompted to allow to run.

•    If the tool warns you the version is outdated, please download and run the updated version.
• IF Windows prompts you about running this, select YES to allow it to proceed.
• IF you get a block message from Windows about this tool......

               click line More info information on that screen
               and click button Run anyway on next screen.

• on the FRST window:

Click the Fix button just once, and wait.

PLEASE have patience when this starts. You will see a green progress bar start. Lots of patience.  Please attach the Fixlog.txt with your next reply. 

Please only attach logs, reports as we go along.

Edited December 10, 2022 by Maurice Naggar

[eikqzx]

 Cannot find script file how to find or create System.vbs

[Maurice Naggar]

That exception message is from Windows, and, it is actually a good sign that the VBS file is no longer around. That said, we need to find where it is  that VBS is "called for".
So let us do 2 things.
Please do this special  search.

There is the FRSTENGLISH.exe  tool on the Downloads folder. We will use that to do a search.

Find & then start FRSTENGLISH  ( on Downloads folder)

 

Type the following ( better yet, use COPY then Paste) into the search box exactly as shown  then press the Search Files button

SearchAll: system.vbs

Please wait while the program searches for all entries relating to this , when done a search.txt log will be saved to the desktop. Please attach this log to your next reply.

Proceed forward and also do this.
On Downloads folder you have the report tool mb-support-1.8.7.918.exe

Launch mb-support-1.8.7.918.exe
click Advanced >>> then   Gather Logs

 Have patience till the run has finished.

Upload an archive once it is done. Attach the mbst-grab-results.zip from the Desktop.

Please attach  mbst-grab-results.zip    to your reply

Edited December 11, 2022 by Maurice Naggar

[eikqzx]

Search.txt mbst-grab-results.zip

[Maurice Naggar]

Open an elevated Powershell window i.e. run Command Prompt as an administrator .

On the Taskbar Search box, type in
cmd.exe
click the line for "run as administrator"

It is best to use the Windows Copy ( CTRL+ C )  and paste  ( CTRL+V )  for the whole line, as-is
On that Powershell prompt,  Copy & Paste this command

del C:\Users\Eikq\AppData\Roaming\Microsoft\Windows\Recent\System.vbs.lnk

press Enter-key on keyboard   
DO reply with

Y

as a YES reply when prompted for confirmation

and watch & write down the result

( 2 )

 Do a custom scan with Microsoft Defender Antivirus 

Just want to do a visual check in Windows Security to see (visually) that Microsoft Defender is on , and to do a Custom scan.

From the Windows Start menu, select Settings, then select Update and Security.

Next, look at the left-side menu & select Windows Security

Next, In Windows Security section: Click on the grey button Open Windows Security

Now, click on the shield Virus and threat protection

Look to see that Microsoft Defender is shown & available for use.

On the next display, look at all the options.  Look down the list and see "Check for Updates" .

You should click on that to have the system check for updates for Windows Defender.  Watch & wait for that to complete.

Please also note that the Scan options (all) can be displayed by clicking on Scan options.   Click that & select CUSTOM scan & then pick the C drive  & have it go forward.

Once it has started the scan phase, you can go take a long break.   Let me know the results.

[eikqzx]

Scan Result

[Maurice Naggar]

I am curious as to what these downloads are
C:\Users\Eikq\Downloads\ryujinx-1.1.0-ldn3.0.1-win_x64 (2).zip
C:\Users\Eikq\Downloads\ryujinx-1.1.0-ldn3.0.1-win_x64
C:\Users\Eikq\Downloads\ryujinx-1.1.0-ldn3.0.1-win_x64 (1).zip
C:\Users\Eikq\Downloads\ryujinx-1.1.0-ldn3.0.1-win_x64.zip

There is a "link" type file that looks suspicious to me, and I suggest that it be deleted
C:\Users\Eikq\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Ryujinx.lnk

[Maurice Naggar]

Now a different scan with another security scanner. 

This with Kaspersky KVRT tool.

Download Kaspersky Virus Removal Tool (KVRT) from here: https://www.kaspersky.com/downloads/thank-you/free-virus-removal-tool and save to your Desktop.

Next, Select the Windows Key and R Key together, the "Run" box should open.



Drag and Drop KVRT.exe into the Run Box.



C:\Users\Eikq\DESKTOP\KVRT.exe will now show in the run box.



add 

-dontencrypt

 Note the space between KVRT.exe and -dontencrypt

C:\Users\Eikq\DESKTOP\KVRT.exe -dontencrypt 

should now show in the Run box.



That addendum to the run command is very important.


To start the scan select OK in the "Run" box.



The Windows Protected your PC window "may" open, IF SO then select "More Info"



A new Window will open, select "Run anyway"



A EULA window will open, tick both confirmation boxes then select "Accept"



In the new window select "Change Parameters"

 

• In the new window ensure the following boxes are ticked:
  • System memory
  • Startup objects
  • Boot sectors
  • System drive

• Then select "OK" and „Start scan“.

The Kaspersky tool is very thorough so will take a considerable time to complete, please allow it to finish. Also while Kaspersky runs do not use your PC for anything else..

• completed: If entries are found, there will be options to choose. If "Cure" is offered, leave as it is. For any other options change to "Delete", then select "Continue".
• Usually, your system needs a reboot to finish the removal process.
• Logfiles can be found on your systemdrive (usually C: ), similar like this:

Reports are saved here C:\KVRT_data\Reports and look similar to this report_20221211_103821.klr

• Right click direct onto those reports, select > open with > Notepad.
• Save the files and attach them with your next reply

[eikqzx]

In my C: is not have KVRT_data folder then I capture My Screen

 

[eikqzx]

I found report 

report_2022.12.11_23.43.41.txt

[Maurice Naggar]

The Kaspersky KVRT did not find any 'new' malware since all items under C:\FRST\Quarantine were previously removed & quarantined by the earlier runs we made. So in actuality, it is a relief to know no new threats are around.

May I presume that Block notices ( by Malwarebytes ) about publicvm[.]com have ceased ?

Next, This will be a check with ESET Onlinescanner for viruses, other malware, adwares, & potentially unwanted applications.

Go to https://download.eset.com/com/eset/tools/online_scanner/latest/esetonlinescanner.exe

 

It will start a download of "esetonlinescanner.exe"

• Save the file to your system, such as the Downloads folder, or else to the Desktop.
• Go to the saved file, and double click it to get it started.

 

• When presented with the initial ESET options, click on "Computer Scan".
• Next, when prompted by Windows, allow it to start by clicking Yes
• When prompted for scan type, Click on Full scan

Look at & tick ( select ) the radio selection "Enable ESET to detect and quarantine potentially unwanted applications" and click on Start scan button.

• Have patience. The entire process may take an hour or more. There is an initial update download.

There is a progress window display. You may step away from machine &. Let it be.  That is, once it is under way, you should leave it running.  It will run for several hours.

• At screen "Detections occured and resolved" click on blue button "View detected results"
• On next screen, at lower left, click on blue "Save scan log"
• View where file is to be saved. Provide a meaningful name for the "File name:"
• On last screen, set to Off (left) the option for Periodic scanning
• Click "save and continue"
• Please attach the report file so I can review

[eikqzx]

result.txt

[Maurice Naggar]

That run found and removed 2 threats. Let me have you run the following, please.

 

You will need to send Sophos an email to get the link to download, please do so.

Sophos Scan & Clean

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

• If your security alerts to this scan either accept the alert or turn off your security to allow Sophos to run and complete.....
• Please close all other open applications and Do Not use your PC whilst the scan is in progress... This scan is very thorough so it may take several hours to complete, please be patient...

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)

 

Attach the results in your next reply

• Close the Notepad document, close the Threat Details screen, then click Start cleanup

Click Exit to close the program

 

If no threats were found please confirm that result...

• The Virus Removal Tool scans the following areas of your computer:
• Memory, including system memory on 32-bit (x86) versions of Windows
• The Windows registry
• All local hard drives, fixed and removable
• Mapped network drives are not scanned.

Note: If threats are found in the computer memory, the scan stops. This is because further scanning could enable the threat to spread. You will be asked to click Start Cleanup to remove the threats before continuing the scan.

 

Saved logs are found under this sub-folder: C:\ProgramData\Sophos\Sophos Virus Removal Tool\Logs 

Please attach that log on your next reply

Thank you

[eikqzx]

it should be like this?

SophosScanAndClean_20221213_1834.log

[Maurice Naggar]

Yes, that is good. It found zero threats. I believe your system is good to go. The major threat was removed earlier with the custom-script run of 11 December. Question: Do you need other help ?

[eikqzx]

No Thank for your help!!

[Maurice Naggar]

You are very welcome. I am glad to have worked with you.

We can proceed with cleanup of tools we used.

To remove the FRSTENGLISH tool & its work files, do this. Go to your Downloads folder. Do a RIGHT-click on FRSTENGLISH.exe & select

RENAME 

& then change it to

UNINSTALL.exe

.
Then run that ( double click on it) to begin the cleanup process.

Delete mb-support-1.8.7.918.exe
Delete mbst-grab-results.zip on the Desktop.

Delete msert.exe
Delete kvrt.exe
Delete esetonlinescanner.exe

Any other download file I had you download, you may delete.
Consider using PatchMyPC, keep all your software up-to-date - https://patchmypc.com/home-updater#download

Keep your system and programs up to date. Several programs release security updates on a regular basis to patch vulnerabilities. Keeping your software patched up prevents attackers from being able to exploit them to drop malware.

I am marking this case for closure.
I wish you all the best. Stay safe.
Sincerely.

Maurice

[Maurice Naggar]

Glad we could help.

If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this topic with your request.

This applies only to the originator of this thread. Other members who need assistance please start your own topic in a new thread.

Please review the following to help you better protect your computer and privacy Tips to help protect from infection

Thank you