Suspect fileless malware infection

[HenriqueSaias]

Hello, I am pretty sure my pc is infected and I would greatly appreciate your help. I think this happened after a torrent download from the pirate bay, specifically this one: https://thepiratebay.vip/torrent/27003352/Mortal_Engines_2018_720p_HDCAM-1XBET

The torrent contained an exe file (which I didn't open and deleted immediately after downloading, but anyway) after that, I have been experiencing the following symptoms on my pc:

1) my chrome developer console keeps showing attempted network requests

2) my gmail account doesn't show the actual email content:

 

3) my selected window/application will become deselected for no reason

4) pc is operating generally slower than usual, especially when browsing Youtube.com

 

Steps I've taken:

A few days passed before I really noticed this, maybe even a whole week.

Today, I restarted my system in safe mode, cleaned up temp files through Window's "Disk Cleanup", downloaded MalwareBytes and ran the Threat Detection Scan with the attached report. In vain, though, because all the symptoms are still present. I tried installing Autoruns and identifying the load point in the list but nothing seemed strange to me, even with the help of VirusTotal I couldn't identify any possible threat there...

At rest, my task manager shows a minimum RAM usage of 38%, please let me know if there is any other useful information I can provide. I fear for my sensitive passwords such as bank etc... Thank you very much for any help.

malwareReport.txt

[kevinf80]

Hello HenriqueSaias and welcome to Malwarebytes, Run the following: Open Malwarebytes Anti-Malware.   On the Settings tab > Protection Scroll to and make sure the following are selected: Scan for Rootkits Scan within Archives   Scroll further to Potential Threat Protection make sure the following are set as follows: Potentially Unwanted Programs (PUP`s) set as :- Always detect PUP`s (recommended) Potentially Unwanted Modifications (PUM`s) set as :- Alwaysdetect PUM`s (recommended)   Click on the Scan make sure Threat Scan is selected, A Threat Scan will begin. When the scan is complete if anything is found make sure that the first checkbox at the top is checked (that will automatically check all detected items), then click on the Quarantine Selected Tab If asked to restart your computer to complete the removal, please do so When complete click on Export Summary after deletion (bottom-left corner) and select Copy to Clipboard. Wait for the prompt to restart the computer to appear, then click on Yes. After the restart once you are back at your desktop, open Malwarebytes once more to retrieve the log. To get the log from Malwarebytes do the following:   Click on the Reports tab > from main interface. Double click on the Scan log which shows the Date and time of the scan just performed. Click Export > From export you have two options: Copy to Clipboard - if seleted right click to your reply and select "Paste" log will be pasted to your reply Text file (*.txt) - if selected you will have to name the file and save to a place of choice, recommend "Desktop" then attach to reply   Use "Copy to Clipboard, then Right click to your reply > select "Paste" that will copy the log to your reply… Next, Download Farbar Recovery Scan Tool and save it to your desktop. Alternative download option: http://www.techspot.com/downloads/6731-farbar-recovery-scan-tool.html Note: You need to run the version compatible with your system (32 bit or 64 bit). If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version. If your security alerts to FRST either, accept the alert or turn your security off to allow FRST to run. It is not malicious or infected in any way... Be aware FRST must be run from an account with Administrator status...   Double-click to run it. When the tool opens click Yes to disclaimer.(Windows 8/10 users will be prompted about Windows SmartScreen protection - click More information and Run.) Make sure Addition.txt is checkmarked under "Optional scans"   Press Scan button to run the tool.... It will make a log (FRST.txt) in the same directory the tool is run. Please copy and paste it to your reply. The tool will also make a log named (Addition.txt) Please attach that log to your reply. Let me see those logs in your next reply.. Thank you, Kevin

[HenriqueSaias]

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 12/21/18
Scan Time: 11:19 PM
Log File: cdbdb26a-0576-11e9-b9d3-8c1645455be4.json

-Software Information-
Version: 3.6.1.2711
Components Version: 1.0.508
Update Package Version: 1.0.8433
License: Trial

-System Information-Addition.txtFRST.txt
OS: Windows 10 (Build 17134.472)
CPU: x64
File System: NTFS
User: LAPTOP-8G45MHKJ\goret

-Scan Summary-
Scan Type: Threat Scan
Scan Initiated By: Manual
Result: Completed
Objects Scanned: 301902
Threats Detected: 2
Threats Quarantined: 2
Time Elapsed: 3 min, 17 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Detect
PUM: Detect

-Scan Details-
Process: 0
(No malicious items detected)

Module: 0
(No malicious items detected)

Registry Key: 0
(No malicious items detected)

Registry Value: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 0
(No malicious items detected)

File: 2
Trojan.Script, C:\USERS\GORET\APPDATA\ROAMING\DXMTPA.EXE, Quarantined, [3947], [613659],1.0.8433
Trojan.Downloader.Powershell, C:\USERS\GORET\APPDATA\ROAMING\JZOZNV.EXE, Quarantined, [9332], [614797],1.0.8433

Physical Sector: 0
(No malicious items detected)

WMI: 0
(No malicious items detected)

(end)

[HenriqueSaias]

Addition.txt

FRST.txt

[kevinf80]

Hiya HenriqueSaias, Thanks for those logs, continue with the following: Turn on System Restore: https://www.thewindowsclub.com/system-restore-disabled-turn-on-system-restore-windows Download attached fixlist.txt file (end of reply) and save it to the Desktop, or the folder you saved FRST into. "Do not open that file when running FRST fix" NOTE. It's important that both FRST and fixlist.txt are in the same location or the fix will not work. Open FRST and press the Fix button just once and wait. The tool will make a log on the Desktop (Fixlog.txt) or the folder it was ran from. Please post it to your reply. Next, Download AdwCleaner by Malwarebytes onto your Desktop. Or from this Mirror Right-click on AdwCleaner.exe and select Run as Administrator (for Windows Vista, 7, 8, 8.1 and 10 users) Accept the EULA (I accept), then click on Scan Let the scan complete. Once it's done, make sure that every item listed in the different tabs is checked and click on the Clean button. This will kill all the active processes Once the cleaning process is complete, AdwCleaner will ask to restart your computer, do it After the restart, a log will open when logging in. Please copy/paste the content of that log in your next reply Next, Download Sophos Free Virus Removal Tool and save it to your desktop. If your security alerts to this scan either accept the alert or turn off your security to allow Sophos to run and complete..... Please Do Not use your PC whilst the scan is in progress.... This scan is very thorough so may take several hours...   Double click the icon and select Run Click Next Select I accept the terms in this license agreement, then click Next twice Click Install Click Finish to launch the program Once the virus database has been updated click Start Scanning If any threats are found click Details, then View log file... (bottom left hand corner) Copy and paste the results in your reply Close the Notepad document, close the Threat Details screen, then click Start cleanup Click Exit to close the program If no threats were found please confirm that result.... The Virus Removal Tool scans the following areas of your computer: Memory, including system memory on 32-bit (x86) versions of Windows The Windows registry All local hard drives, fixed and removable Mapped network drives are not scanned. Note: If threats are found in the computer memory, the scan stops. This is because further scanning could enable the threat to spread. You will be asked to click Start Cleanup to remove the threats before continuing the scan. Saved logs are found here: C:\ProgramData\Sophos\Sophos Virus Removal Tool\Logs Let me see those logs in your reply, also tell me if there are any remaining issues or concerns... Thank you, Kevin.

fixlist.txt

[HenriqueSaias]

Fixlog.txt

Here's the ADW log: 

# -------------------------------
# Malwarebytes AdwCleaner 7.2.6.0
# -------------------------------
# Build:    12-18-2018
# Database: 2018-12-21.2 (Cloud)
# Support:  https://www.malwarebytes.com/support
#
# -------------------------------
# Mode: Scan
# -------------------------------
# Start:    12-22-2018
# Duration: 00:00:18
# OS:       Windows 10 Home
# Scanned:  32227
# Detected: 5

***** [ Services ] *****

No malicious services found.

***** [ Folders ] *****

Adware.pokki                    C:\Users\DefaultAppPool\AppData\Local\Host App Service

***** [ Files ] *****

Adware.pokki                    C:\Windows\System32\Tasks_Migrated\App Explorer
PUP.Optional.Legacy             C:\END

***** [ DLL ] *****

No malicious DLLs found.

***** [ WMI ] *****

No malicious WMI found.

***** [ Shortcuts ] *****

No malicious shortcuts found.

***** [ Tasks ] *****

No malicious tasks found.

***** [ Registry ] *****

PUP.Optional.Conduit            HKCU\Software\Conduit
PUP.Optional.Conduit            HKLM\Software\Wow6432Node\Conduit

***** [ Chromium (and derivatives) ] *****

No malicious Chromium entries found.

***** [ Chromium URLs ] *****

No malicious Chromium URLs found.

***** [ Firefox (and derivatives) ] *****

No malicious Firefox entries found.

***** [ Firefox URLs ] *****

No malicious Firefox URLs found.

########## EOF - C:\AdwCleaner\Logs\AdwCleaner[S00].txt ##########

 

And Sophos was on all night but didn't report any threats:

 

Any ideas...?

[kevinf80]

What is happening with your system now, any odd or erratic behavior..?

[HenriqueSaias]

All these network requests are kind of creepy, and I know for a fact this hasn't been going on for a long time because I use the console regularly for work.

[HenriqueSaias]

All the same symptoms that I reported in the original post are still present...

[kevinf80]

Turn Developer mode off, then continue:

Please download Zemana AntiMalware and save it to your Desktop.   Install the program and once the installation is complete it will start automatically. Without changing any options, press Scan to begin. After the short scan is finished, if threats are detected press Next to remove them. Note: If restart is required to finish the cleaning process, you should click Reboot. If reboot isn't required, please re-boot your computer manually.   Open Zemana AntiMalware again. Click on icon and double click the latest report. Now click File > Save As and choose your Desktop before pressing Save. Attach saved report in your next message. Post that log...

[HenriqueSaias]

Zemana AntiMalware 2.74.2.150 (Installed)

-------------------------------------------------------
Scan Result            : Terminated
Scan Date              : 2018/12/23
Operating System       : Windows 10 64-bit
Processor              : 8X Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
BIOS Mode              : UEFI
CUID                   : 129831EB5ECB45113439CF
Scan Type              : System Scan
Duration               : 5m 2s
Scanned Objects        : 17251
Detected Objects       : 3
Excluded Objects       : 0
Read Level             : Normal
Auto Upload            : Enabled
Detect All Extensions  : Disabled
Scan Documents         : Disabled
Domain Info            : WORKGROUP,0,2

Detected Objects
-------------------------------------------------------

Chrome Startup Url
Status             : Scanned
Object             : https://tomato-timer.com/
MD5                : -
Publisher          : -
Size               : -
Version            : -
Detection          : Suspicious Browser Setting
Cleaning Action    : Repair
Related Objects    :
                Browser Setting - Chrome Startup Url

Chrome Homepage
Status             : Scanned
Object             : https://www.sciencedaily.com/news/
MD5                : -
Publisher          : -
Size               : -
Version            : -
Detection          : Suspicious Browser Setting
Cleaning Action    : Repair
Related Objects    :
                Browser Setting - Chrome Homepage

ludp.dll
Status             : Scanned
Object             : NE->c:\programdata\lenovo\imcontroller\plugins\lenovohardwarescanplugin\x86\lscdiags\ludp.dll
MD5                : -
Publisher          : -
Size               : -
Version            : -
Detection          : PUA:Win32/Lenovo-ATM!Neng
Cleaning Action    : Quarantine
Related Objects    :
                (null) - (null)

Cleaning Result
-------------------------------------------------------
Cleaned               : 3
Reported as safe      : 0
Failed                : 0
 

[HenriqueSaias]

Both those browser settings (the startup url and the homepage) were defined by me, btw.

[kevinf80]

Any improvement..?

[HenriqueSaias]

None whatsoever : (

[kevinf80]

Ok, lets try a clean install of Chrome...

If your Chrome Bookmarks are important do this first: Go to this link: http://www.wikihow.com/Export-Bookmarks-from-Chrome follow the instructions and Export your Bookmarks from Chrome, save to your Desktop or similar. Note the instructions can also be used to Import the bookmarks..... Continue for a clean install: Download Chrome installer and save to install later: https://www.google.com/intl/en_uk/chrome/browser/desktop/index.html https://www.google.com/intl/en_usa/chrome/browser/desktop/index.html Next, Open Chrome and sign into your account, open a new tab and type or copy paste chrome://settings/syncSetup hit enter... In the new window that opens "Sync everthing" will probably be selected, scroll down to and select "Managed sync data on Google Dashboard" A new window will open, scroll down to and select "Reset Sync" that will clear synced data from Google Server... Continue to next step to completely Uninstall Chrome.... Next. Uninstall Chrome: https://support.google.com/chrome/answer/95319?hl=en-GB follow those instructions, ensure the option to "Also delete your browsing data" is selected. <<--- Very important!! Navigate to C:\Users\Your user name\Appdata\Local from that folder delete the folder named Google (you will need to show hidden files/folders to see the folder Appdata) For XP that will be My Computer > C:\ Documents and Settings\Your User Name\Application Data\Roaming How to show hidden files and folders for windows: http://www.howtogeek.com/howto/windows-vista/show-hidden-files-and-folders-in-windows-vista/ Next, Install Google Chrome : Next, Import your Bookmarks... (instructions in the first step) Next, Install uBlock Origin for Chrome: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm?hl=en Does that help...?

[HenriqueSaias]

Seems to have done the trick I didn't think of reinstalling chrome, thanks a lot.

[kevinf80]

You`re very welcome, continue to clean up:

Uninstall Sophos AV and Zemana http://www.askvg.com/how-to-completely-uninstall-remove-a-software-program-in-windows-without-using-3rd-party-software/ Also delete this folder if still present: C:\ProgramData\Sophos Next, Download "Delfix by Xplode" and save it to your desktop. Or use the following if first link is down: "Delfix link mirror" If your security program alerts to Delfix either, accept the alert or turn your security off. Double Click to start the program. If you are using Vista or higher, please right-click and choose run as administrator Make Sure the following items are checked:   Remove disinfection tools <----- this will remove tools we may have used. Purge System Restore <--- this will remove all previous and possibly exploited restore points, a new point relative to system status at present will be created. Reset system settings <--- this will reset any system settings back to default that were changed either by us during cleansing or malware/infection Now click on "Run" and wait patiently until the tool has completed. The tool will create a log when it has completed. We don't need you to post this. Any remnant files/logs from tools we have used can be deleted… Next, Run Windows Disk Clean Up Utility - https://neosmart.net/wiki/disk-cleanup/ Read the following links to fully understand PC Security and Best Practices, you may find them useful.... Answers to Common Security Questions and best Practices Do I need a Registry Cleaner? Take care and surf safe Kevin...

[kevinf80]

Glad we could help.

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Thanks