large files invading my PC

[jimrich]

Hello:
Please help me if you can..........
Something disabled Windows Defender and is letting very large bogus files onto my computer so I installed the latest free version of Avast.  I am using win 8.1 in a Lenovo computer.   I just discovered that some mystery files are being inserted into my computer by the dozens and these mystery files are extremely large so the hard drive was almost filled up! 
Here is what I found by using an app called WinDirStat:
the mystery files look like this:  12754694899610736661_285349875804383936 0_4480_4480 ~ 960 MB
and this: ver1
they are sent to this location in my computer:  C:\$Recycle.Bin\S-1-5-21-2712117882-3860235528-2112810399-1002

When I open the mystery file with FIREFOX, it looks like this:
file:///C:/recyclebin/12754694899610736661_2853498758043835520_3840_3840
which is an application/octet-stream (960 MB) from C:\recyclebin

Note: file opens in Firefox but there is no information in the page and, after selecting Ctl - U, there is NO code at all!

These files are still coming into my computer after installng Avast so PLEASE help me if you can.   I can catch these files with the help of WinDirStat but want to stop them altogether.  I believe a virus has invaded my PC and had hoped that Avast would catch and kill it  but not so far! 

[SuperDave]

Hello and welcome to Computer Hope Forum. My name is Dave. I will be helping you out with your particular problem on your computer.

1. I will be working on your Malware issues. This may or may not solve other issues you have with your machine.
2. The fixes are specific to your problem and should only be used for this issue on this machine.
3. If you don't know or understand something, please don't hesitate to ask.
4. Please DO NOT run any other tools or scans while I am helping you.
5. It is important that you reply to this thread. Do not start a new topic.
6. Your security programs may give warnings for some of the tools I will ask you to use. Be assured, any links I give are safe.
7. Absence of symptoms does not mean that everything is clear.

If you can't access the internet with your infected computer you will have to download and transfer any programs to the computer you're using now and transfer them to the infected computer with a CD-RW or a USB storage device. I prefer a CD because a storage device can get infected. If you use a storage device hold the shift key down while inserting the USB storage device for about 10 secs. You will also have to transfer the logs you receive back to the good computer using the same method until we can get the computer back on-line.
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Please download AdwCleaner by Xplode onto your Desktop.

Before starting AdwCleaner, close all open programs and internet browsers, then double-click on the AdwCleaner icon.



If Windows prompts you as to whether or not you wish to run AdwCleaner, please allow it to run.
When the AdwCleaner program will open, click on the Scan button as shown below.



AdwCleaner will now start to search for malicious files that may be installed on your computer.
To remove the files that were detected in the previous step, please click on the Clean button.



AdwCleaner will now prompt you to save any open files or data as the program will need to reboot the computer. Please do so and then click on the OK button. AdwCleaner will now delete all detected adware from your computer. When it is done it will display an alert that explains what PUPs (Potentially Unwanted Programs) and Adware are. Please read through this information and then press the OK button. You will now be presented with an alert that states AdwCleaner needs to reboot your computer.
Please click on the OK button to allow AdwCleaner reboot your computer.A log will be produced. Please copy and paste this log in your next reply.
*********************************************
Please download Malwarebytes Anti-Malware from here.
Double Click mbam-setup.exe to install the application.

• It should update automatically if the computer is connected to the internet.
• Click on Threat Scan and click on Scan Now.
  
• The scan may take some time to finish,so please be patient.
• When the scan is complete make sure all the infections have "quarantine" selected in the Action box.
  
• Click on "Apply actions" You may be asked to Restart your computer to completely remove the infections.
  
• When disinfection is completed you can click on "Copy to Clipboard".
  
• Paste the log in you next reply (CTRL+ V)

*************************************************
Please download Junkware Removal Tool to your desktop.

•Warning! Once the scan is complete JRT will shut down your browser with NO warning.

•Shut down your protection software now to avoid potential conflicts.

•Temporarily disable your Antivirus and any Antispyware real time protection before performing a scan. Click this link to see a list of security programs that should be disabled and how to disable them.

•Run the tool by double-clicking it. If you are using Windows Vista or Windows 7, right-click JRT and select Run as Administrator

•The tool will open and start scanning your system.

•Please be patient as this can take a while to complete depending on your system's specifications.

•On completion, a log (JRT.txt) is saved to your desktop and will automatically open.

•Copy and Paste the JRT.txt log into your next message.

[vmanoussos]

Your comment has been removed. Please do not post malware advice, or post here in the malware forum, unless you need help.Superdave.