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False negatives?

josephtenzin

Just installed Sophos Anti-Virus Home Edition.

Updated the virus list.

Ran local drive scan.

Results-No Threats Detected

But 4 days ago I ran ClamXav and it found 37 contaminated files:  phsing, Trojan etc.  Did not do anything with the files since removal on ClamXav requires a level of skill that is beyond me.

Why did Sophos miss these files?

Your help is much appreciated.

:1012010


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    Hello Joseph,

    if you can remember which files were flagged you could send them as samples. If you can't or you're not sure then the best option is probably to run ClamXav once more (the App should do). BTW it might be that the detections were in an application's (e.g.Mail, Safari) cache or temporary location and have since been removed.

    Christian

    :1012018
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  • 0

    Hello Joseph,

    if you can remember which files were flagged you could send them as samples. If you can't or you're not sure then the best option is probably to run ClamXav once more (the App should do). BTW it might be that the detections were in an application's (e.g.Mail, Safari) cache or temporary location and have since been removed.

    Christian

    :1012018
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