injecting shellcode via early bird apc queue

[cspgsl]

Suddenly there hare several dozen entries to .bat ifles in the startup of this user's Win 11 computer. I have attached a screenshot of one of the screens I could capture. 

MB was blocking access to duckdns outbound domain but I could not close the MB warning popup as it wouldn't quit. MS Defender was also catching items.

MB full scan found nothing.

I don't know where this user has been, as his browsing history is gone.

Any help would be appreciated, thanks

FRST.txt Addition.txt Malwarebytes Scan Report 2024-09-15 162548.txt

[AdvancedSetup]

Hello @cspgsl

Did you install the following software?

 

Take Control Agent - (N-ABLE TECHNOLOGIES LTD -> )

 

 

[AdvancedSetup]

Please run the following fix

 

NOTE: Please read all of the information below before running this fix.

• NOTICE: This script was written specifically for this user, for use on this particular machine.
• Running this on another machine may cause damage to your operating system that cannot be undone.

Once the fix has been completed, please attach the file FIXLOG.TXT to your next reply

Farbar program:   FRST64.exe

Save the attached file:  FIXLIST.TXT to this folder D:\\

NOTE. It's important that both files, FRST64.exe, and fixlist.txt are in the same location or the fix will not work.

Please make sure you disable any real-time antivirus or security software before running this script. Once completed, make sure you re-enable it.

 

 

Run the Farbar program with Admin rights and press the Fix button just once and wait.

The fix may possibly take up to 60 minutes to complete

If the tool needs a restart please make sure you let the system restart normally and let the tool complete its run after restart.
The tool will make a log named Fixlog.txt in the same folder you ran the Farbar program from. Please attach that log on your next reply.

 

1. NOTE:  This fix will run a scan to check that all Microsoft operating system files are valid and not corrupt and attempt to correct any invalid files. It will also run a disk check on the restart to ensure disk integrity.
2. NOTE: As part of this fix all temporary files will be removed. If you have any open web pages that have not been bookmarked please make sure you bookmark them now as all open applications may be automatically closed.
               Also, make sure you know the passwords for all websites as cookies may possibly be removed in some cases, but not all cases.
3. NOTE: As part of this fix, it will also reset the network to default settings including the firewall. If you have custom firewall rules you need to save please export or save them first before running this fix.

The following directories are emptied:

• Windows Temp
• Users Temp folders
• Edge, IE, FF, Chrome, and Opera caches, HTML5 storages, Cookies and History
• Recently opened files cache
• Discord cache
• Java cache
• Steam HTML cache
• Explorer thumbnail and icon cache
• BITS transfer queue (qmgr*.dat files)
• Recycle Bin

Important: items are permanently deleted. They are not moved to quarantine. If you have any questions or concerns please ask before running this fix.

The system will be rebooted after the fix has run.

fixlist.txt

Thanks

 

[cspgsl]

I did install Take Control and have used it with this person for many years. Any Desk was installed which the owner was unaware of. I uninstalled it before starting this post.

I will run the files in your reply in the morning and report back

thanks

 

[AdvancedSetup]

Sounds good. I did not target the remote tool.

 

[cspgsl]

Fixlog.txt

[AdvancedSetup]

Thank you for the log @cspgsl

Overall the fix ran well.

Please try to run the following now.

 

Scan with Malwarebytes
https://forums.malwarebytes.com/topic/304827-scan-with-malwarebytes/

Scan with AdwCleaner
https://forums.malwarebytes.com/topic/304822-scan-with-adwcleaner/

 

Then run the following as well

 

Dr.Web CureIt!

Please download the Dr.Web CureIt! anti-virus utility
https://free.drweb.com/

 

You will need to send them an email to obtain a link to download the scanner, please do so

• The downloaded file will normally have a unique name such as:  q7a9tr4p.exe
• Close all open applications and locate the downloaded file and double-click to run it
• The program will take a moment to launch and bring up the License and Update screen
• Place a check mark to agree to the terms and then click on the Continue button
• Click the underlined link Select objects for scanning
• On the top left click the Scanning objects that should automatically check all objects
• Click the small wrench and make sure there is a check on Automatically apply actions to threats
• Then click the large button on bottom right Start scanning
• Once the scan has completed there will be a link named Open report click that and a log named cureit.log should open in Notepad
• The log is saved in the folder named Doctor Web in the top of your user profile folders
• Please attach that log on your next reply

 

 

 

[cspgsl]

Computer appears normal now.

thanks

 

AdwCleaner[C00].txt BOOTEX.LOG cureit.log Malwarebytes Scan Report 2024-09-17 072631.txt

[cspgsl]

I am having an issue with OUtlook recieving the ISP Cogeco email. 

I have added the following to the MB allow list but fear that when the IP address changes it will be blocked again.

IP Address: 193.122.131.100

Can one add wildcards to the IP Address?

I also added C:\Program Files\Microsoft Office\root\Office16\Outlook.exe and smtp.cogeco.ca first but that didn't help.

Any thoughts on how to proceed so the email server isn't blocked?

Thanks

 

Malwarebytes Website Blocked Report 2024-09-17 082409.txt

[AdvancedSetup]

You can see that the server is still untrusted

https://www.abuseipdb.com/check/193.122.131.100

 

https://www.virustotal.com/gui/url/cdf49da424b53d3a9910a9ae3cd7707f9c594e6688e1be6ca8bd181ad4a2c5bd?nocache=1

 

You cannot and should not use wild card exclusions

 

If you're connected with this server you should work to stop these issues if you're using the system as a customer please contact them and ask them to work on correcting

 

[AdvancedSetup]

I would recommend one more AV scan before we finish. It can take a while to run but will help to ensure the system is clean.

 

 

Let's go ahead and run a couple of scans and get some updated logs from your system.

Please read the entire post below before starting so that you're more familiar with the process

[ 1 ]

Please make the following system changes.

• Temporarily disable your antivirus real-time protection or other security software first only if it blocks or interferes with the scans or downloads.. Make sure to turn it back on once the scans are completed.
• Temporarily disable Microsoft SmartScreen to download software below only if needed. Make sure to turn it back on once the scans are completed.
• Disable-Fast-Startup
• Show-Hidden-Folders-Files-Extensions

[ 2 ]

Microsoft Safety Scanner

I suggest a new scan for viruses & other malware. This may take several hours, depending on the number of files on the system and the speed of the computer.

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 the Scan Options & select the FULL scan.

Then start the scan. Have lots of patience. It may take several hours to complete.

• 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 the screen display.  The only things that count are the End result at the end of the run and saved in the log.
• The scan may take several hours.  Leave it alone. It will remove any other remaining threats as it goes along.  Take a very long break, do your normal personal errands .....just do not use the computer during this scan.

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

The log is named MSERT.log  and the log will be at C:\Windows\debug\msert.log

Please attach that log with your next reply.

 

It is normal for the Microsoft Safety Scanner to show detections during the scan process.

It is scanning for basically all bread crumbs or traces of files and registry entries that "might" be or have been part of some infection or previous infection.

That DOES NOT mean the computer is infected. Once the scan has been completed it uploads the log to their Cloud service which then uses Artificial Intelligence to determine if in fact any of the traces are an infection or not.

Then it writes into the log on your computer what it found and did.

 

Thank you

 

[cspgsl]

msert.log

[AdvancedSetup]

It found one threat and removed it.

Threat Detected: Trojan:JS/Pikabot.SS!MTB and Removed!
  Action: Remove, Result: 0x00000000
    file://C:\Users\Adrie\Downloads\VIA.zip->Qvg.js
        SigSeq: 0x000054E7B661A0D7
    containerfile://C:\Users\Adrie\Downloads\VIA.zip

 

Please run the following

Scan with SecurityCheck by glax24
https://forums.malwarebytes.com/topic/307301-scan-with-securitycheck-by-glax24/

 

 

 

[cspgsl]

SecurityCheck.txt

[AdvancedSetup]

Thank you for the log

 

Please Uninstall, Update, or otherwise address the following as appropriate for your computer

• iTunes v.12.12.7.1 Warning! Download Update | ^Please use Apple Software Update tool.^
• Malwarebytes version 5.1.9.124 v.5.1.9.124 Warning! Download Update
• Python 3.9.0 (32-bit) v.3.9.150.0 Warning! Download Update
• Python 3.9.0 (64-bit) v.3.9.150.0 Warning! Download Update

Please Uninstall the following

---------------------------- [ UnwantedApps ] -----------------------------

• Bonjour (This program is rarely needed on Windows, but often causes networking issues, please uninstall)

 

 

Then RESTART the computer and check for Windows Updates and install any found

 

Then let me know if there are any other signs of infection or any other unresolved issues @cspgsl

 

 

 

[cspgsl]

all good. thank you for your help

[AdvancedSetup]

Excellent, glad to hear all is well again. I'll go ahead and close your topic now and wish you well.

Please follow the directions below to remove the logs and tools we've used. If any are still left after that you can manually uninstall or delete them.

Take care and stay safe out there. Try to follow as much of the advise below as you can as well.

 

Let's go ahead and do some clean-up work and remove the tools and logs we've run.

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, ensure all boxes under Actions are checked.
• Under Delete Quarantines select Delete Now, then click Run.
• Once complete, click OK.
• A log will open in Notepad titled kprm-(date).txt. You can close it.

 

We're glad that we were able to assist you.

 

The following information will help you to keep your computer and data safer as well as improve your overall privacy

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/780233/best-password-manager/
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     https://patchmypc.com/about-us
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://forums.malwarebytes.com/topic/258363-tips-to-help-protect-from-infection/ 
6. 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

•   Google Chrome: https://chrome.google.com/webstore/detail/malwarebytes-browser-guar/ihcjicgdanjaechkgeegckofjjedodee
•   Microsoft Edge: https://support.malwarebytes.com/hc/en-us/articles/4413298736787-Install-Malwarebytes-Browser-Guard-on-Microsoft-Edge-browser
•   Mozilla Firefox: https://addons.mozilla.org/en-US/firefox/addon/malwarebytes/

uBlock Origin

• Google Chrome: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm 
• Microsoft Edge: https://microsoftedge.microsoft.com/addons/detail/ublock-origin/odfafepnkmbhccpbejgmiehpchacaeak 
• Mozilla Firefox: https://addons.mozilla.org/en-US/firefox/addon/ublock-origin

 

Cybersecurity basics & protection
Everything you need to know about cybercrime
https://www.malwarebytes.com/cybersecurity

 

Further reading if you'd 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. Please tell your friends and family if they too need assistance with malware removal