Avira/Avast conflict?

Discussion in 'other anti-virus software' started by te42, Aug 18, 2009.

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  1. te42

    te42 Registered Member

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    I have been using Avast Pro for a number of months, no problems with it. I read from a link i got on this forum for an impartial testing of antivirus software
    http://www.av-comparatives.org/
    where it showed that Avira caught 69% of the virus and malware and Avast caught 42% in their testing. So i downloaded Avira free version, did an up date and a scan. Nothing was found. But since then I have had 2 alerts from Avira. They are as follows: (for one i hit delete, the next time deny access) All this in just the last half hour.

    Virus or unwanted program 'TR/Crypt.XPACK.Gen [trojan]'
    detected in file 'C:\WINDOWS\Temp\_avast4_\unp192872719.tmp.
    Action performed: Delete file

    and

    Virus or unwanted program 'TR/Crypt.XPACK.Gen [trojan]'
    detected in file 'C:\WINDOWS\Temp\_avast4_\unp245720853.tmp.
    Action performed: Deny access

    Is this just a confick between 2 antivirus programs? Or is it actually something? Also Superantispyware just finished a scan and found nothing. If the alerts come back from Avira, which option is best to hit?
     
  2. Osaban

    Osaban Registered Member

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    Hi there,
    It is common knowledge that installing 2 antivirus simultaneously can be dangerous to your system. Problems could range from conflicts, false positives, and sometimes the system can crash so badly that it might need a reinstall. if I were you I'd try to uninstall Avast first if you want to test Avira, and decide later which one you want to keep. Avira's detection is probably a false positive.
     
  3. te42

    te42 Registered Member

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    Thank you for your reply. Do you recomend one of the two over the other. There seemed to be such a big difference in the percentage of what was stopped.
     
  4. HKEY1952

    HKEY1952 Registered Member

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    I would stick with Avast! Professional Edition, my opinion is that Avast! is more dynamic in protection. Also the new version, Avast! 5, is on the horizon

    This test shows that Avira and Avast! are almost equal:
    http://www.virusbtn.com/news/2008/09_02


    HKEY1952
     
  5. te42

    te42 Registered Member

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    Thank you for your reply. At the first link i was using, i was not looking at the "on demand" test results, which i guess is more reflective of what real world results would be. In that section it was 99.6% for Avira and 97.6% for Avast detections.
    So they are both very good.
     
  6. Fly

    Fly Registered Member

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    Just a suggestion: if you uninstall one of these AVs, use the company's uninstaller, a regular Windows uninstallation leaves too much behind.
     
  7. HKEY1952

    HKEY1952 Registered Member

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    Yes, good advice Fly, uninstall program/s through Windows Add or Remove Programs, Reboot, then run the appropriate removal/uninstall tool per venders instructions.

    Avira AntiVir Removal Tools:
    Look for: Avira AntiVir RegistryCleaner in the list
    Dated: 11 Feb 2008 - Version : 7.0.0.8
    http://www.avira.com/en/support/support_downloads.html

    Avast! Uninstall Utility:
    http://www.avast.com/eng/avast-uninstall-utility.html


    HKEY1952


    EDIT: Edited for clarification
     
    Last edited: Aug 19, 2009
  8. Osaban

    Osaban Registered Member

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    I don't know anything about Avast except that it is improving consistently with every test. If you paid for the Pro version of Avast, stay with it. It is also against the rules at Wilders to compare two AVs directly, and ultimately you should follow your own judgement.
    Why not add a virtualizer or a sandbox? No AV on its own will give you maximum protection.
     
  9. Osaban

    Osaban Registered Member

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    Hi there,
    I think that your link " Avira Removal Tool " is really a program which will clean a system from malware:

    I have uninstalled Avira many times in the past, and it really doesn't leave anything behind.
     
  10. Stefan Kurtzhals

    Stefan Kurtzhals AV Expert

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    Simply exclude "C:\WINDOWS\Temp\_avast4_\" from scanning in the Avira Guard. Avast seems unable to lock their temp files while unpacking programs. Nice to know if you want to abuse it for unpacking programs. :rolleyes:
     
  11. HKEY1952

    HKEY1952 Registered Member

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    In the list of Downloads is an tool called Avira AntiVir RegistryCleaner, an description of that tool is in the list below that:

    Avira AntiVir RegistryCleaner
    Dated: 11 Feb 2008 - Version : 7.0.0.8
    Description: Normally the Avira RegistryCleaner removes all entries that were created by AntiVir.
    In this way, it prepares your system for the installation of a new AntiVir version.

    Yes, the Avira AntiVir Removal Tool
    Dated: 04 Jun 2009 - Version : 3.0.1.17 is an Virus removal tool
    I should have been more specific.


    HKEY1952
     
    Last edited: Aug 19, 2009
  12. Osaban

    Osaban Registered Member

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    You are perfectly right! It is good to know there is such a thing, perhaps the wording from the Avira site should be more specific. Out of curiosity, I have uninstalled Avira on my Vista machine several times now, and I just ran the tool that you mentioned to see what was left behind: not one single entry (I will certainly use it in the future on my XP machine, just to make sure).
     
    Last edited: Aug 19, 2009
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