Low detecting technology in those type of files

Viruses and worms
1

In 99% of cases when I open a malicious file Avast auto sandbox is turned on.
When I opened this file nothing happened :frowning:
The file is malware for sure.
https://www.virustotal.com/en/file/590d4787ef11e93641c5ed4a6d01d98c33654cfca6a5109bca87ccfcb5ce43f7/analysis/1379691037/

2

Hi,
If you wanna, let’s check you PC for any malware.

Please download Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatibale with your system. 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.

[*]Double-click to run it. When the tool opens click Yes to disclaimer.
[*]Under Optional Scan ensure “List BCD” and “Driver MD5” are ticked.
[*]Press Scan button.
[*]It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
[*]The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.

3

Files

4

Your system is infected and it came from USB memory devices. Do not attach USB devices before MCShield scan below.

NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to the operating system

Download attached FixList.txt to your Desktop.

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

  1. Run FRST/FRST64 and press the Fix button just once and wait.
    If the tool needed a restart please make sure you let the system to restart normally and let the tool completes its run after restart.
    The tool will make a log on the Desktop (Fixlog.txt). Please attach it to your reply.

Note: If the tool warned you about the outdated version please download and run the updated version.

----- next -----

  1. Please download ComboFix from here and save it to your Desktop.
    If you are unsure how ComboFix works please read this guide carefully.
    note: ComboFix must be downloaded to your Desktop.
  1. Temporarily disable your AntiVirus program.
    If you are unsure how to do this please read this or this Instruction.

Instructions how to disable avast:

[*]Right-click on the avast! icon in the lower right corner of the screen and choose Open Avast! User Interface.
[*]In the window that opens on the top right corner, click Settings.
[*]In a new window that opens, choose the option Troubleshooting, Uncheck Enable avast! self-defense, and click OK.
[*]=> Again, right-click on the avast! icon in the lower right corner of the screen and select avast! shield controls .
[*]In the menu that appears, choose Disable Permanently. When you are prompted to turn off security, click Yes.

Note: Do not forget to turn on this option after the cleaning.

  1. Run ComboFix. Click on I Agree!

ComboFix will check if there is a newer version of ComboFix available.
Click Yes if prompted to download.
ComboFix will display DISCLAIMER OF WARRANTY ON SOFTWARE.
Click Yes to allow ComboFix to continue.
If Recovery Console is not installed, ComboFix will offer download & installation.
Click Yes to allow ComboFix to install Recovery Console.
Note:Do not mouse-click Combofix’s window while it is running.
If you see a message like “Illegal operation attempted on a registry key that has been marked for deletion” just restart computer once more.

  1. When the tool is finished, it will produce a log report for you. (typical location: C:[b]ComboFix.txt[/b] )
    Attach log reports ( ComboFix.txt) back to topic.

----- finaly -----

Check USB storage devices / removable drives

Download MCShield from one of the following links:

MyCity - Official download link
Softpedija - Mirror download link

[*] Double click MCShield-Setup to install the application.
[*] Wait a few seconds to MCShield finish initial scan.
Recommendation to under General and Scanner tab you click on Defaults button to choose recommended options.
[*] Connect your USB storage devices to the computer one at a time. Scanning will be done automatically.

When all scanning is done, you need to attach a logreport that MCShield has created.

Start → All Programs → MCShield → Logs

Attach here → AllScans.txt

Explanation: USB storage devices are all the USB devices that get their own partition letter at connecting to the PC,
e.g. flash drives (thumb/pen drives, USB sticks), external HDDs, MP3/MP4 players, digital cameras,
memory cards (SD cards, Sony Memory Stick, MultiMedia Cards etc.), some mobile phones, some GPS navigation devices etc.

5

Keep in mind that there is no malware detector that can detect ALL malware.