How do I detect if my Legacy System is infected with a BIOS or Boot virus?

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ciao

Level 1
Thread author
Nov 22, 2022
46
They directed me here, Antiviruses cannot access when the BIOS or boot part of Legacy systems is infected with a virus, so how can I detect the viruses infected here, I am not entirely sure because the virus was infected without my knowledge, but I want to be sure. How can i be sure?
 
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nasdaq

Moderator
Verified
Staff Member
Nov 5, 2019
1,431
Hello, Welcome to MalwareTips.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
===

This technical question if hard to answer.
You can get some information of the issue by reading some of the information on this topic.
You may not be using E-set.

Let's see what we will find for now..

Please download Malwarebytes Anti-Malware from Malwarebytes or
from BleepingComputer


Right-click on the MBAM icon and select Run as administrator to run the tool.
Click Yes to accept any security warnings that may appear.
Once the MBAM dashboard opens, on the right detail pane click on the word "Current" under the Scan Status to update the tool database.
On the left menu pane click the Settings tab, and then select the Protection tab on the top.
Under the Scan Options, turn on the button Scan for rootkits and Scan within archives.
Click the Scan tab on the right detail pane, select Threat Scan and click the Start Scan button
Note: The scan may take some time to finish, so please be patient.
If potential threats are detected, ensure to check mark all the listed items, and click the Quarantine Selected button.
While still on the Scan tab, click the View Report button, and in the window that opens click the Export button, select Text file (*.txt), and save the log to your Desktop.
The log can also be viewed by clicking the log to select it, then clicking the View Report button.

Please post the log for my review.

Note: If asked to restart the computer, please do so immediately.
===

Please download AdwCleaner by Malwarebytes your Desktop.

Close all open programs and internet browsers.
Double click on AdwCleaner.exe to run the tool.
Click the Scan button and wait for the process to complete.
Click the LogFile button and the report will open in Notepad.

IMPORTANT

If you click the Clean button all items listed in the report will be removed.

If you find some false positive items or programs that you wish to keep, Close the AdwCleaner windows.

Close all open programs and internet browsers.
Double click on AdwCleaner.exe to run the tool.
Click the Scan button and wait for the process to complete.
Check off the element(s) you wish to keep.
Click on the Clean button follow the prompts.
A log file will automatically open after the scan has finished.
Please post the content of that log file with your next answer.
You can find the log file at C:\AdwCleanerCx.txt (x is a number).
<<<>>>

Download the Farbar Recovery Scan Tool (FRST).
Choose the 32 or 64 bit version for your system.
and save it to a folder on your computer's Desktop.
Ensure that you are in an Administrator Account
Double-click to run it. When the tool opens click Yes to disclaimer.
Check the boxes as seen here:
L7kNU5y.jpg

Press Scan button.
It will make a log (FRST.txt) in the same directory the tool is run. Please copy and Attach it to your reply.
The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.


Please attach the logs for my review.
How to attach a file to your reply:
In the Reply section in the bottom of the topic Click the "Upload file" button.
Do this for both files. Then pres the "Post reply" button.
<<<>>>

Wait for further instructions

p.s.

The Farbar program is updated often.
If it's identified as suspicious by your Anti-Virus program trust it if Downloaded from the link I provided.
You should restore the program from the Quarantine folder.
<<<>>>
 

ciao

Level 1
Thread author
Nov 22, 2022
46
Hello, Welcome to MalwareTips.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
===

This technical question if hard to answer.
You can get some information of the issue by reading some of the information on this topic.
You may not be using E-set.

Let's see what we will find for now..

Please download Malwarebytes Anti-Malware from Malwarebytes or
from BleepingComputer


Right-click on the MBAM icon and select Run as administrator to run the tool.
Click Yes to accept any security warnings that may appear.
Once the MBAM dashboard opens, on the right detail pane click on the word "Current" under the Scan Status to update the tool database.
On the left menu pane click the Settings tab, and then select the Protection tab on the top.
Under the Scan Options, turn on the button Scan for rootkits and Scan within archives.
Click the Scan tab on the right detail pane, select Threat Scan and click the Start Scan button
Note: The scan may take some time to finish, so please be patient.
If potential threats are detected, ensure to check mark all the listed items, and click the Quarantine Selected button.
While still on the Scan tab, click the View Report button, and in the window that opens click the Export button, select Text file (*.txt), and save the log to your Desktop.
The log can also be viewed by clicking the log to select it, then clicking the View Report button.

Please post the log for my review.

Note: If asked to restart the computer, please do so immediately.
===

Please download AdwCleaner by Malwarebytes your Desktop.

Close all open programs and internet browsers.
Double click on AdwCleaner.exe to run the tool.
Click the Scan button and wait for the process to complete.
Click the LogFile button and the report will open in Notepad.

IMPORTANT

If you click the Clean button all items listed in the report will be removed.

If you find some false positive items or programs that you wish to keep, Close the AdwCleaner windows.

Close all open programs and internet browsers.
Double click on AdwCleaner.exe to run the tool.
Click the Scan button and wait for the process to complete.
Check off the element(s) you wish to keep.
Click on the Clean button follow the prompts.
A log file will automatically open after the scan has finished.
Please post the content of that log file with your next answer.
You can find the log file at C:\AdwCleanerCx.txt (x is a number).
<<<>>>

Download the Farbar Recovery Scan Tool (FRST).
Choose the 32 or 64 bit version for your system.
and save it to a folder on your computer's Desktop.
Ensure that you are in an Administrator Account
Double-click to run it. When the tool opens click Yes to disclaimer.
Check the boxes as seen here:
L7kNU5y.jpg

Press Scan button.
It will make a log (FRST.txt) in the same directory the tool is run. Please copy and Attach it to your reply.
The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.


Please attach the logs for my review.
How to attach a file to your reply:
In the Reply section in the bottom of the topic Click the "Upload file" button.
Do this for both files. Then pres the "Post reply" button.
<<<>>>

Wait for further instructions

p.s.

The Farbar program is updated often.
If it's identified as suspicious by your Anti-Virus program trust it if Downloaded from the link I provided.
You should restore the program from the Quarantine folder.
<<<>>>
1. I scanned my device with Malwarebytes and adwcleaner but not as administrator and found nothing.


2. I use Eset


3. Do I need to scan with Farbar?


4. However, I know that antiviruses cannot access Legacy systems. I just want to know how can I be sure this place is clean. @nasdaq
 
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nasdaq

Moderator
Verified
Staff Member
Nov 5, 2019
1,431
Hi,
Run the Farbar program and attach the FRST.TXT and Additional.TXT log for my review.
 
  • Like
Reactions: franz

ciao

Level 1
Thread author
Nov 22, 2022
46
It didn't open because I'm not an administrator. how do i be on the admin account?

Note: I didn't need it, I did it by running as administrator
 
Last edited:

ciao

Level 1
Thread author
Nov 22, 2022
46
I ran it as administrator and scanned. I hope there is nothing in the files that contains any of my information.😅 @nasdaq

Since I think it contains my personal information, if you write to me while online, I will send the files. :)
 
Last edited:

nasdaq

Moderator
Verified
Staff Member
Nov 5, 2019
1,431
Hi,

Open the logs and edit your personal information to Obfuscated

If I submit a fixlist you will have to change it back o it's original name in order for the fix to complete.
 

ciao

Level 1
Thread author
Nov 22, 2022
46
Merhaba,

Günlükleri açın ve kişisel bilgilerinizi Gizlenmiş olarak düzenleyin

Bir düzeltme listesi gönderirsem, düzeltmenin tamamlanması için orijinal adını değiştirmeniz gerekir.
I asked several forums and was told no personal information other than the filename. I will remove it when you write me the answer about it anyway.
Since you left after 1 message and I can't change files, I will post at your average online time

@nasdaq
 
Last edited:

nasdaq

Moderator
Verified
Staff Member
Nov 5, 2019
1,431
Hi,

Please submit edited logs and I will review and advise.
 
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