Random PC on network scanning port 445/137 to internal & external IP

[CosMo82]

Hi, I have issue with random Windows 10 PC in the network scanning for port 445/137. The issue would come back on some PC even after I've done a Windows 10 Reset or install a fresh copy from a Windows 10 image. All the PC are installed with KasperSky Endpoint 11 & it did not pick up any abnormally at all. Those suspicious PC has been scanned with Malwarebytes as well before I do the reset/reinstalling of Windows. I've blocked port 445/137 on my firewall thus I'm seeing port scanning coming from these PC to WAN but all the IP are invalid local IP range that don't exist on my network.

 

[nasdaq]

Hello, Welcome to MalwareTips.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
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Please download Malwarebytes Anti-Malware from here

• Right-click on the MBAM icon and select Run as administrator to run the tool.[/*]
• Click Yes to accept any security warnings that may appear.[/*]
• Once the MBAM dashboard opens, on the right detail pane click on the word "Current" under the Scan Status to update the tool database.[/*]
• On the left menu pane click the Settings tab, and then select the Protection tab on the top.[/*]
• Under the Scan Options, turn on the button Scan for rootkits and Scan within archives.[/*]
• Click the Scan tab on the right detail pane, select Threat Scan and click the Start Scan button[/*]
• Note: The scan may take some time to finish, so please be patient.[/*]
• If potential threats are detected, ensure to check mark all the listed items, and click the Quarantine Selected button.[/*]
• While still on the Scan tab, click the View Report button, and in the window that opens click the Export button, select Text file (*.txt), and save the log to your Desktop.[/*]
• The log can also be viewed by clicking the log to select it, then clicking the View Report button.[/*]

Please post the log for my review.

Note: If asked to restart the computer, please do so immediately.
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Please download AdwCleaner by Malwarebytes your Desktop.

• Close all open programs and internet browsers.[/*]
• Double click on AdwCleaner.exe to run the tool.[/*]
• Click the Scan button and wait for the process to complete.[/*]
• Click the LogFile button and the report will open in Notepad.[/*]

IMPORTANT

• If you click the Clean button all items listed in the report will be removed.[/*]

If you find some false positive items or programs that you wish to keep, Close the AdwCleaner windows.

• Close all open programs and internet browsers.[/*]
• Double click on AdwCleaner.exe to run the tool.[/*]
• Click the Scan button and wait for the process to complete.[/*]
• Check off the element(s) you wish to keep.[/*]
• Click on the Clean button follow the prompts.[/*]
• A log file will automatically open after the scan has finished.[/*]
• Please post the content of that log file with your next answer.[/*]
• You can find the log file at C:\AdwCleanerCx.txt (x is a number).[/*]

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[/b][/b]Download the Farbar Recovery Scan Tool (FRST).
Choose the 32 or 64 bit version for your system.
and save it to a folder on your computer's Desktop.
Double-click to run it. When the tool opens click Yes to disclaimer.
Press Scan button.
It will make a log (FRST.txt) in the same directory the tool is run. Please copy and paste it to your reply.
The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.

How to attach a file:
In the Reply section in the bottom of the topic Select Click the Attach Files.
Navigate to the location of the File.
Click the file. It will appear in the reply section.
Click the Post Reply button.

Please post the logs for my review.

Let me know what problems persists.

Wait for further instructions

 

[nasdaq]

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