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RegAsm.exe desires to access sketchy domain/website


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Clicked on a sketchy script file and now RegAsm.exe keeps trying to access a malicious domain. Thankfully MB blocks the outbound connection. I did some digging with the blocked IP, created my own Windows Defender outbound and inbound blokcing rules, and here's what I found: https://www.joesandbox.com/analysis/677877/0/html

The domain appears to harbour an njrat application. I've run MB scanning, MB anti-rootkit, tdsskiller to be clear - Seems to be clean. Now I'm just wondering how to get RegAsm.exe to stop pinging/accessing the website. Thanks!

Sketchy Domain.png

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Hello @Baaseguy 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, 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 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 upload that file in your next reply to this topic.

Thank you.

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Hello @Baaseguy  and  :welcome:

 

My name is MKDB and I will assist you.

 

 

Let's keep these principles as we proceed. Make sure to read the entire post below first.

  • Please follow the steps in the given order and post back the log files.
  • Please copy and paste all log files into your post.
  • Before we start, please make sure that you have an external backup, not connected to this system, of all private data.
  • Only run the tools I guide you to. Please don't run any other scans, download, install or uninstall any programs while I'm working with you.
  • As English is not my native language, please do not use slang or idioms. It may be hard for me to understand.
  • If you do not respond within 4 days, your topic will be closed.
  • Cracked 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 a big source of current trojan infections. If you are running any kin of illegal software on your system, please uninstall them now, before we start the cleaning procedure.

 

 

Please attach the zip file that was requested by 1PW, so I can help you.

Thank you!

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Due to the lack of feedback, I do not follow this topic any longer.

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 for Tips to help protect from infection.

Thank you.

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Please run the following FRST fix (this may take some minutes, so plese be patient) as well as ESET @Baaseguy.

Attach both logfiles with your next answer.

Thank you!

 

 

Step 1

  • Please download the attached fixlist.txt file and save it to your download folder, which is C:\users\Henry\Downloads\ in your case.
  • You will find the file FRSTEnglish.exe (FRST) as well in this folder.

Note: It's important that both files, FRST and fixlist.txt are in the same location or the fix will not work.

  • Close all open programs and save your work.
  • Run FRST again.
  • Press the Fix button only once and wait. Please be patient and do not interfere, even if FRST does not respond for some time. That's nothing to worry about.
  • Please note: This Fix will remove all temporary files and empty recycle bin.
  • If the tool needs a restart, please make sure you let the system restart normally and let the tool complete its run after restart.
  • FRST will create one log now (Fixlog.txt) in the same directory the tool is run.
  • Please attach this logfile to your next reply.

 

 

Step 2

Let me have you run a different scanner to double-check. I don't expect it to find anything, but no harm in checking.

I would suggest a free scan with the ESET Online Scanner

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 the 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 should ignore all prompts to get the ESET antivirus software program.  (e.g. their standard program). You do not need to buy or get or install anything else.
  • 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.
  • If something was removed and you know it is a false finding, you may click on the blue ”Restore cleaned files”  (in blue, at the bottom).
  • Press Continue when all done.  You should click to off the offer for “periodic scanning”.

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

 

 

 

fixlist.txt

Edited by MKDB
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Thank you for your cooperation @Baaseguy

 

Please download KpRm by kernel-panik and save it to your desktop.

  • Right-click kprm_(version).exe and select Run as Administrator.
  • Read and accept the disclaimer.
  • When the tool opens, select Delete Tools under Actions.
  • Under Delete Quarantines select Delete Now, then click Run.
  • Once complete, click OK.
  • A log may open in Notepad titled kprm-(date).txt.  I do not need it. Just close Notepad if it shows up.

 

 

 

A few final recommendations:

  1. Recommend using a Password Manager for all websites, etc. that require a password. Never use the same password on more than one site.
    https://www.howtogeek.com/240255/password-managers-compared-lastpass-vs-keepass-vs-dashlane-vs-1password/
  2. Make sure you're backing up your files https://forums.malwarebytes.com/topic/136226-backup-software/
  3. Keep all software up to date - PatchMyPC - https://patchmypc.com/home-updater#download
  4. Keep your Operating System up to date and current at all times - https://support.microsoft.com/en-us/windows/windows-update-faq-8a903416-6f45-0718-f5c7-375e92dddeb2
  5. Further tips to help protect your computer data and improve your privacy: https://www.bleepingcomputer.com/forums/t/407147/answers-to-common-security-questions-best-practices/

https://www.bleepingcomputer.com/forums/t/287710/how-malware-spreads-how-your-system-gets-infected/

  1. Please consider installing the following Content Blockers for your Web browsers if you haven't done so already. This will help improve overall security

Malwarebytes Browser Guard

uBlock Origin

 

Further reading if you like to keep up on the malware threat scene: Malwarebytes Blog  https://blog.malwarebytes.com/

Hopefully, we've been able to assist you with correcting your system issues.

Thank you for using Malwarebytes.

 

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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 for Tips to help protect from infection.

Thank you.

 

As this topic seems to be solved, I do not follow it any longer.

Take care!

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