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cannot run or install any anti-virus software [Solved]


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#16
Naathim

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The point is that I don;t see anything here and have no clues where the issue may be hiding.


Run SFC, no need to right click and Run as Administrator

batfile.gif Run System Files Checker

SFC is internal Windows tool to verify the integration of critical system files.

  • Press the WindowsKey.png on your keyboard.
  • In the search box type in cmd and wait until it appears.
  • Right-click on the batfile.gifcmd.exe and select RunAsAdmin.jpg Run as Administrator to start command prompt.
  • Type in the following command: sfc /scannow and press enter. Note the space as marked: sfc_/scannow.

Let in run unhindered. This procedure may take some time.
Did it say that finished and no violations were found?


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#17
picard

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Yes, System File Checker finished but did not find any violations.


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#18
picard

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Hi Naat,

 

as i said, i was using a Raid.1.

Now i splitted this into 2 normal HDs.

Then i reverted one of them to an old an clean state (iso backup)

 

The other one (probabely infected) still exists, but i'm not using it anymore now.

If you have any more  ideas, i could easily boot the infected one for further testing...

From new/old clean system i ran a fast scan with avast over infected HD - no infections found

(both HDs via SATA then)

 

I am still very much interested in what kind of malware this could be, and even more in how i did get it.

 

Regards, Jo


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#19
Naathim

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Hi :)

 

This doesn't look like a malicious software issue. I don't have any idea what could be wrong here, since are no files patched and no symptoms visible in logs.

 

The only things that come to me is to totally wipe out any existing security-related programs and to try a fresh installation of an AV.


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#20
picard

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Hi,

 

 

totally wipe out any existing security-related programs

this might be the solution, but i can't see any security sw running.

i have uninstalled everything i found.

 

Since i can execute 100% of non-antivirus software but only ~15% of anti-virus sw i really am sure i got malware, or - as you said - another anti-virus tool that stops other av-tools...

 

thank you very much for your efforts and any suggestion...

 

regards, jo


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#21
Naathim

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Well, the point is that all I've got are your logs. These are the things that show me your registry and the file system. I agree that they have some limitations and so do I. I will brainstorm what else may be done here, but I suppose that it may be difficult to diagnose, cause probably some internal settings are broken.

Also I don't want to deploy plenty of tools which will probably bring nothing really useful, except plenty of lines to analyze.
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#22
picard

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I think i got your point.

 

My reverted system works perfect now.

So i think i'll surrender for now. Virus: 1, Me: 0 ;)

Maybe later some AV Software will detect something on this HD...

 

Thank you for everything!!!

Jo


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#23
Naathim

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You are welcome! :)


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#24
Naathim

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Since this issue appears to be resolved ... this Topic has been closed. Glad we could help. :)

If you're the topic starter, and need this topic reopened, please contact a staff member with the address of the thread.

Everyone else please begin a New Topic.
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