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Avast! Anti Virus Free blocks everything


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#1 Chris Bo

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Posted 02 September 2014 - 05:55 AM

Hi!

 

I am clueless what this issue is concerned. My Avast! always blocks every kind of download or certain programs/games like (Python IDE Canopy or Counter Strike Global Offensive).

 

I added such a message as a picture. Can you help me resolve that issue and maybe clean my system from Malware?

 

uuw7oa4q.png

 

King Regards,

Chris



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#2 quietman7

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Posted 02 September 2014 - 06:38 AM

File System Shield checks any programs at the moment they are started and other files at the moment they are opened or closed. If anything suspicious is detected, the file system shield will prevent the program from being started or the file from being opened to prevent any damage being caused to your computer and data. A suspicious detection does not mean the file is actually malicious so avast allows you to add the file to the exclusion list and report it as a false positive so the detection will be removed.


This detections has been reported previously (and not exclusively by avast) but may need to be reported to avast again.
Steam.exe being detected as a Trojan
Steam.exe was just flagged as a trojan
Steam.exe False Positive

The detection has also been reported at the Steam Community forums.
avast blocking csgo.exe and steam.exe thinking its a 'dropper
Steam.exe Virus?
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#3 Chris Bo

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Posted 02 September 2014 - 06:57 AM

The problem here is that Avast doesn't even let me declare it as exclusion. Also it denies every download. That can't be normal. The steam issue was only an example.



#4 quietman7

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Posted 02 September 2014 - 09:19 AM

Since every file you attempt to download cannot be malicious...it sounds like an issue with avast itself.

A quick work-around would be to right-click the avast icon in the system tray...choose avast! shields control and then disable for 10 ten minutes until your download is complete.
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#5 Chris Bo

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Posted 02 September 2014 - 09:53 AM

Yeah that's what I'm doing all the time. But it's pretty annoying. I also tried reinstalling it. No changes.



#6 B-boy/StyLe/

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Posted 02 September 2014 - 05:14 PM

Hmm...the filepath looks a little suspicious - C:\Users\Bifrost...

 

Please download SystemLook from the link below and save it to your Desktop.
SystemLook_x64.exe

  • Double-click SystemLook_x64.exe to run it.
  • Copy the content of the following codebox into the main textfield:

    :folderfind
    *bifrost*
    :regfind
    *bifrost*

    :dir

    C:\Users\Bifrost /s

  • Click the Look button to start the scan.
  • When finished, a notepad window will open with the results of the scan. Please post this log in your next reply.
Note: The log can also be found on your Desktop entitled SystemLook.txt
 

 

Regards,

Georgi


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#7 Chris Bo

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Posted 03 September 2014 - 01:01 AM

I named my account Bifrost, so if it's that what you find suspicious I can comfort you.



#8 B-boy/StyLe/

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Posted 03 September 2014 - 01:12 AM

Lol...it's ok then. From the picture above I can't see the full filepath. Do you know that Bifrost is the name of a real trojan. :) Maybe this triggered the detection but it's a good idea to scan this *.tmp file on VirusTotal just to make sure.

 

 

Regards,

Georgi


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#9 quietman7

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Posted 03 September 2014 - 05:16 AM

I don't use Steam but from what I read when using the program (i.e. importing a spray) it is responsible for creating temp files in user account folders. Malware also likes to hide in these locations.
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#10 titan1

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Posted 16 September 2014 - 09:56 AM

Greetings and respect to everyone. Somedays ago I faced similar problem. I was just tweaking the settings and turned on avast! Hardened mode and put it to aggresive mode. After that almost every game software in my laptop was being blocked from execution.The hardened mode blocks execution of programs which are not in white list of avast. My guess may be wrong but have you checked the avast hardened mode?

#11 quietman7

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Posted 16 September 2014 - 01:48 PM

avast! Hardened Mode is used to further lock down the security of the computer and is recommended for novice (inexperienced) users or for administrators looking to lock down settings without restricting accounts. This feature relies on avast’s file reputation service which crowd-sources information from almost 200 million devices currently protected by avast! products. Hardened Mode has two settings...Moderate and Aggressive which can be accessed (enabled) by launching avast!, selecting Settings > Antivirus.

Moderate: avast! automatically blocks files that are detected as suspicious by initial analysis. Moderate hardened mode essentially stops the execution of any suspicious file immediately.

Aggressive: avast! analyses if the file is included in it's white-list database located in the avast! Cloud. If the file is present in the white-list, it is determined to be safe and execution is permitted. If the file is not present in the white-list, execution is blocked.

Hardened mode cannot discern correctly whether a program is safe or not so when the settings are too high (Aggressive), it seems to block almost everything....erring on the side of safety.
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