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AVIRA: Over-Enthusiastic Hueristics?

Posted on 2014-01-09
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Last Modified: 2014-01-09
I have no reason to suspect that this Win7 PC is infected.
I always have realtime protection and updates running with Avira & Malwarebytes
This is what I get when I scan with Avira. (Heuristics set to default - medium)
I didn't run any repairs.

C:\Windows\regedit.exe
  [DETECTION] Contains suspicious code HEUR/Modified.SystemFile
  [NOTE]      The detection was classified as suspicious.
  [WARNING]   The file was ignored.

Ditto for these ......
C:\Windows\system32\ntvdm.exe
C:\Windows\system32\reg.exe
C:\Windows\system32\userinit.exe
C:\Windows\system32\rundll32.exe
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\mshtml.dll
C:\Windows\system32\dnsapi.dll
C:\Windows\system32\d3d9.dll
C:\Windows\system32\msvcrt.dll
C:\Windows\system32\aclui.dll
C:\Windows\system32\dsound.dll
C:\Windows\system32\imm32.dll
C:\Windows\system32\ctfmon.exe
C:\Windows\system32\drivers\beep.sys
C:\Windows\system32\kernel32.DLL
C:\Windows\system32\gdi32.DLL
C:\Windows\system32\user32.DLL
C:\Windows\system32\advapi32.DLL
C:\Windows\system32\wuauclt.exe
C:\Windows\system32\alg.exe
C:\Windows\system32\spoolsv.exe
C:\Windows\system32\csrss.exe
C:\Windows\system32\lsass.exe
C:\Windows\system32\services.exe
C:\Windows\system32\ws2_32.DLL
C:\Windows\system32\wsock32.DLL
C:\Windows\system32\wininet.DLL
C:\Windows\system32\smss.exe
C:\Windows\explorer.exe
C:\Windows\system32\winlogon.exe
C:\Windows\system32\svchost.exe

Can I believe any of this ?
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Question by:Eirman
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Tolomir earned 300 total points
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you can simply upload one of those files to https://www.virustotal.com/ and let it check by a bunch of antivirus tools.

This will tell you if avira is having the same issues like avast today on android with a wrong virus pattern signature file claiming all programs are infected..
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by:aadih
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I believe, "[you] have no reason to suspect that this Win7 PC is infected."

BTW, You don't have real-time protection on for both of them (Avira and MBAM). Do you? If yes, disable on of them.
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by:Eirman
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You don't have real-time protection on for both of them (Avira and MBAM)
I do. I didn't think that they conflicted. Which should I disable?

Should I change my antivirus program?
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by:Tolomir
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I would to a signature update 1st and check some files on virustotal.
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by:Eirman
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I checked reg.exe on virustotal as suggested Tolomir .... Absolutely no infection.

I updated Avira ... same results
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by:Tolomir
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ok, you could then try a different antivirus solution, a good free start is
Microsoft Security Essentials

I'm using bitdefender anti virus, but pick the best snakeoil, you can get ;-)
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by:aadih
aadih earned 195 total points
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Disable MBAM's real-time protection. (You should not have two running at the same time).

Or just run Avira alone (real-time) and use MBAM only to scan and clean when an infection is suspected. Enjoy your PC.

[A long-time Avira user and also of MBAM. I do not use Avira scan, as it hangs at the same point (same file) each time.]
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by:Eirman
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Thanks to all and sundry.
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