Automatically Downloaded .htm File

Solved
Eric -  
bazfile Posted messages 58480 Registration date   Status Moderator Last intervention   -

Good evening everyone,

As indicated in the title, a rather strange file with a .htm extension has been automatically downloaded via my browser (Firefox) without knowing where it came from. Here is a more detailed screenshot below.
https://ibb.co/5Fm8Yh3

If it contains absolutely nothing when I open it, is there still a risk of infection?


3 answers

Super.Mario Posted messages 583 Registration date   Status Member Last intervention   251
 

Hello

No idea why this issue happened, which existed in memory several years ago...
But I recommend fixing your Firefox from the menu (3 _ ) then Help, then More Troubleshooting Information.
"Clear the cache" and also "Repair"

Be careful, I recommend having an account on Firefox and enabling sync to avoid losing information in Firefox.

Otherwise, make backups first!!

See you later


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bazfile Posted messages 58480 Registration date   Status Moderator Last intervention   20 264
 

Hello.

If I believe your screenshot, this file no longer exists, so I don't see the problem.


bazfile
Moderator/Security Contributor.
A hello, a response, a thank you are always appreciated.

0
Eric
 

I indeed deleted this one.

Given the extension, it seems to be a corrupted .html file, but since nothing happened when I clicked on it, I'm "afraid" that it might be another type of extension disguised as an executable.

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bazfile Posted messages 58480 Registration date   Status Moderator Last intervention   20 264 > Eric
 

Well, I see that like many, you want to inspect your PC.

Download FRST.

Once downloaded save it on the desktop then right-click on FRST and choose Run as administrator and you will see this:

Wait until the message the tool is ready to function appears then click on Analyze


Warning, wait for the messages indicating that the analysis is complete to appear.

At the end of the analysis, you will have two text files on the desktop FRST and Addition.

Then send the FRST and ADDITION reports to https://www.cjoint.com/ then provide the two links generated by https://www.cjoint.com/ in your response.

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Eric > bazfile Posted messages 58480 Registration date   Status Moderator Last intervention  
 
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bazfile Posted messages 58480 Registration date   Status Moderator Last intervention   20 264
 

No infection, just orphaned/obsolete processes, to delete them:

Procedure to follow in the indicated order:

1- Open FRST as an administrator by right-clicking on FRST and choosing run as administrator
2 - Copy the entire script that is in the box below:

  Start:: CreateRestorePoint: CloseProcesses: Task: {E0F10DCF-44AD-40E8-9370-FB5DA59F93FB} - System32\Tasks\Microsoft\Windows\UpdateOrchestrator\USO_UxBroker => %systemroot%\system32\MusNotification.exe (No file) S3 fiddrv64; no ImagePath S3 EAAntiCheat; system32\drivers\eaanticheat.sys [X] S3 LenovoDiagnosticsDriver; \??\C:\ProgramData\Lenovo\Vantage\Addins\LenovoHardwareScanAddin\3.0.0.24\LenovoDiagnosticsDriver.sys [X] HKLM\SOFTWARE\Policies\Mozilla\Firefox: Restriction HKLM\SOFTWARE\Policies\Google: Restriction HKLM\SOFTWARE\Policies\Microsoft\Edge: Restriction CustomCLSID: HKU\S-1-5-21-1261383955-4193527029-3378710460-1000_Classes\CLSID\{2280f646-e8ab-4fed-8031-7c0d14bf1ffb}\InprocServer32 -> C:\Program Files\Mozilla Thunderbird\notificationserver.dll => No file CustomCLSID: HKU\S-1-5-21-1261383955-4193527029-3378710460-1000_Classes\CLSID\{23B3E3D8-C162-4A8B-AB0C-0905DCB1DF19}\InprocServer32 -> C:\Users\JB\AppData\Local\Packages\Microsoft.PowerAutomateDesktop_8wekyb3d8bbwe\TempState\RDP\DVCPlugin\x64\Microsoft.Flow.RPA.Desktop.UIAutomation.RDP.DVC.Plugin.dll => No file AlternateDataStreams: C:\Users\JB\AppData\Local\Temp:com.affinity.designer.2 [240] AlternateDataStreams: C:\Users\JB\AppData\Local\Temp:com.affinity.designer.3 [197] End::

3- Once the script is copied, click on Fix, FRST automatically takes the script that is in the clipboard.


Let the fix happen, once it is done you will be asked to restart your PC, do it as soon as you are prompted, see below.

Then once your computer is restarted:
4- You will have a Fixlog file on your desktop, then send this fixlog report to https://www.cjoint.com/ and provide the generated link from https://www.cjoint.com/ in your reply.


bazfile
Moderator/Security Contributor.
A hello, a response, a thank you is always appreciated.

0
Eric
 

Fixlog: https://www.cjoint.com/c/MLpvkKOm2dg

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bazfile Posted messages 58480 Registration date   Status Moderator Last intervention   20 264 > Eric
 

The fixlog is OK.


Uninstall FRST, rename the FRST file you downloaded to uninstall, then once the file is renamed, open it; the uninstallation will be done automatically via a PC reboot.

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Eric > bazfile Posted messages 58480 Registration date   Status Moderator Last intervention  
 

Okay, it's done.

Thanks again for your help!

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bazfile Posted messages 58480 Registration date   Status Moderator Last intervention   20 264 > Eric
 

You're welcome.

See you on CCM.

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