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I opened an unsafe EXE file


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So I opened an exe file which I stupidly ran without checking because it was sent over by a friend that supposedly got a 'good deal' on games. The exe has done whatever it is suppose to do within steam and it works as claimed, and disappears shortly.

 

After finding out it is unsafe, I ran malwarebytes and kaspersky. To my surprise, it did not detect anything unusual? Usually I would expect something bad to be detected, so I did a little more digging and found that it created a DLL within steam.

 

Putting it on virustotal, the exe was marked unsafe by 20/70 vendors, and the dll was marked unsafe by 6/69 vendors. I am currently running a full scan and again, nothing seems to be detected by malwarebytes or kaspersky, which is kinda freaking me out a little.

 

Files:

https://www.virustotal.com/gui/file/1bcdaec16c2f9b283fa952bdafc524ae193b043ac9368eec9100a6cf0ef6940c

https://www.virustotal.com/gui/file/6867edd53b5819ad3914414d81c52ec9bab507f80dc2f255a7ff1cfc0098ce6d

 

Thank you.

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Hello @Loratan and :welcome::

While you are waiting for the next qualified/approved malware removal expert helper to weigh in on your topic, and even though you may have run the following Malwarebytes utility, or its subsets, please carefully follow these instructions:

  1. Download the Malwarebytes Support Tool.
  2. In your Downloads folder, open the mb-support-x.x.x.xxx.exe file.
  3. In the User Account Control (UAC) pop-up window, click Yes to continue the installation.
  4. Run the MBST Support Tool.
  5. In the left navigation pane of the Malwarebytes Support Tool, click Advanced.
  6. In the Advanced Options, click only Gather Logs. A status diagram displays the tool is Getting logs from your computer.
  7. A zip file named mbst-grab-results.zip will be saved to the Public desktop, please attach that file in your next reply to this topic. Please do NOT copy and paste.

For the short time between when you post the diagnostic logs, and when your helper weighs in, please take no further self-directed remedial actions that will invalidate the diagnostic logs you will have sent.

Thank you.

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  • Root Admin

Good day @Loratan

Please run the following

 

Please run the following steps and post back the logs as an attachment when ready.
Temporarily disable your antivirus or other security software first. Make sure to turn it back on once the scans are completed.
Temporarily disable Microsoft SmartScreen to download software below if needed. Make sure to turn it back on once the scans are completed.
If you still have trouble downloading the software please click on Reveal Hidden Contents below for examples of how to allow the download.

 

Spoiler
 
 
 
 
Spoiler

When downloading with some browsers you may see a different style of screens that may block FRST from downloading. The program is safe and used hundreds of times a week by many users.

Example of Microsoft Edge blocking the download

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STEP 01

  • If you already have Malwarebytes installed then open Malwarebytes and click on the Scan button. It will automatically check for updates and run a Threat Scan.
  • If you don't have Malwarebytes installed yet please download it from here and install it.
  • Once installed then open Malwarebytes and select Scan and let it run.
  • Once the scan is completed make sure you have it quarantine any detections it finds.
  • If no detections were found click on the Save results drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
  • If there were detections then once the quarantine has completed click on the View report button, Then click the Export drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
  • If the computer restarted to quarantine you can access the logs from the Detection History, then the History tab. Highlight the most recent scan and double-click to open it. Then click the Export drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
  • If Malwarebytes won't run then please skip to the next step and let me know in your next reply that the scanner would not run.

STEP 02

Please download AdwCleaner by Malwarebytes and save the file to your Desktop.

  • Double-click to run the program
  • Accept the End User License Agreement.
  • Wait until the database is updated.
  • Click Scan Now.
  • When finished, if items are found please click Quarantine.
  • Your PC should reboot now if any items were found.
  • After reboot, a log file will be opened. Attach or Copy its content into your next reply.

RESTART THE COMPUTER Before running Step 3

STEP 03
Please download the Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit

  • Double-click to run it. When the tool opens, click Yes to disclaimer.
  • Press the Scan button.
  • It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
  • The first time the tool is run, it also makes another log (Addition.txt). If you've, run the tool before you need to place a check mark here each time
  • Please attach the Additions.txt log to your reply as well.
  • On your next reply, you should be attaching frst.txt and additions.txt to your post, every time.

 

Thanks

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Hello, thanks for your reply.

 

I have attached the files as requested.

 

I have also attached the full scan I was doing last night, which deleted the exe file that was used to do the virustotal test. Within the full scan there were also 2 false positives, which I have set to 'ignored' for the next scan and quarantined the rest.

 

I ran adwcleaner twice, the first did not result in any restarts, so I ran it again the second time and it did not detect anything.

 

Hopefully I got it right the first time, let me know if anything else is needed. Thank you.

Full Scan Malwarebytes.txt Scan Malwarebytes.txt AdwCleaner[C00].txt FRST.txt Addition.txt AdwCleaner[S01].txt

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16 minutes ago, Loratan said:

Hello, thanks for your reply.

 

I have attached the files as requested.

 

I have also attached the full scan I was doing last night, which deleted the exe file that was used to do the virustotal test. Within the full scan there were also 2 false positives, which I have set to 'ignored' for the next scan and quarantined the rest.

 

I ran adwcleaner twice, the first did not result in any restarts, so I ran it again the second time and it did not detect anything.

 

Hopefully I got it right the first time, let me know if anything else is needed. Thank you.

Full Scan Malwarebytes.txt 2.82 kB · 0 downloads Scan Malwarebytes.txt 1.2 kB · 0 downloads AdwCleaner[C00].txt 3.94 kB · 0 downloads FRST.txt 59.72 kB · 0 downloads Addition.txt 64.06 kB · 0 downloads AdwCleaner[S01].txt 1.51 kB · 0 downloads

Forgot to mention, the dll is still in my steam folder as nothing has detected that yet.

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  • Root Admin

Thank you for the logs.

Please run the following

 

Please run the following ESET Online Scanner and perform a Full Scan

 

Click the following link to save the installer for ESET Online Scanner

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 started. 
  • When presented with the initial ESET screen, click on "Get Started". Read and accept the Terms of use
  • On the "Before we start..." screen chose if you want to send anonymous data and if you want to provide feedback or not, then click Continue
  • When prompted for scan type, Click on the Full Scan button
  • Enable  ( select )   the radio selection "Enable ESET to detect and quarantine potentially unwanted applications"   and click the Start scan button.
  • Have patience.  The entire process may take a few hours or more.
  • When the scan is completed, if something was found, it will show a screen with the number of detected items.  If so, click the button marked “View detected results”.
  • Click The blue “Save scan log” to save the log and give it a name and location you remember.
  • If something was removed and you know it is a false postive, you may click on the blue ”Restore cleaned files”  ( in blue, at the bottom).
  • Press Continue when all done.  You should click to turn off the offer for “periodic scanning”.
  • Enable "Delete application data on closing" - You do not need to submit feedback unless you want to. Simply ignore and close the program.

 

Note: If you do need to do a File Restore from ESET please follow the directions below

[KB2915] Restore files quarantined by the ESET Online Scanner version 3

https://support.eset.com/en/kb2915-restore-files-quarantined-by-the-eset-online-scanner

 

Please attach the ESET scan log you saved at the end to your next reply

 

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  • Root Admin

What file to you believe is still in your game folder?

Please upload it to https://virustotal.com and have them scan it.

 

Please run the following

 

SecurityCheck by glax24              

I would like you to run a tool named SecurityCheck to inquire about the current security update status of some applications.

  • Download SecurityCheck by glax24: https://tools.safezone.cc/glax24/SecurityCheck/SecurityCheck.exe
  • If Microsoft SmartScreen blocks the download, click through to save the file
  • This tool is safe.   Smartscreen is overly sensitive.
  • If SmartScreen blocks the file from running click on More info and Run anyway
  • Right-click  with your mouse on the Securitycheck.exe  and select "Run as administrator"  and reply YES to allow to run & go forward
  • Wait for the scan to finish. It will open a text file named SecurityCheck.txt Close the file.  Attach it with your next reply.
  • You can find this file in a folder called SecurityCheck, C:\SecurityCheck\SecurityCheck.txt

 

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Thank you

 

 

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  • Root Admin

Thank you for the log.

The logs are not indicating an obvious infection at this time.

Please uninstall, update, or otherwise address the following as appropriate for your system @Loratan

 

 

---------------------------- [ UnwantedApps ] -----------------------------
Bonjour v.3.1.0.1 Warning! Application is distributed through the partnership programs and bundle assemblies. Uninstallation recommended.
----------------------------- [ End of Log ] ------------------------------

 

Then restart the computer and check for Windows Updates and install any updates found

 

 

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  • 1 month later...
  • Root Admin

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

 

 

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