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  1. #1
    4 Star Lounger
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    Backdoor.Snowdoor

    I am running Win98SE. I regularly scan my PC with Norton Antivirus 2003 and it shows no infections found. I also have Norton Auto-protect running. However, every time I scan the PC with Spyware Doctor it finds multiple instances of Backdoor.Snowdoor which it removes and quarantines. Then it finds more instances next time I run a scan. Why doesn't Norton pick these up and why doesn't Spyware Doctor get rid of them completely?

  2. #2
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    Re: Backdoor.Snowdoor

    According to Symantec Security Response - Backdoor.Snowdoor, Norton should protect against Snowdoor since February 2003...

  3. #3
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    Re: Backdoor.Snowdoor

    I know Norton SHOULD protect against Backdoor.Snowdoor. This was the point of my query. If Norton protects against it and doesn't find it, how come Spyware Doctor does? And why does it keep reappearing after being removed and quarantined?

  4. #4
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    Re: Backdoor.Snowdoor

    The Symantec article I posted a link to describes which files and which registry entries are installed by Backdoor.Snowdoor.

    - Check whether the files and registry entries actually exist.
    - If not, the Spyware Doctor detection might be a false positive.
    - If they do exist, try removing them manually. You may need to start Windows in safe mode to do so.

  5. #5
    Uranium Lounger
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    Re: Backdoor.Snowdoor

    There appear to be several variants of this one. Do you know which one you have ???

    Snowdoor, Backdoor.Snowdoor.19, Backdoor.Snowdoor.18, Backdoor.Snowdoor.17, Backdoor.Snowdoor.13, Backdoor.Snowdoor.35., Snowdoor 1.3

    Take a look at this Google search.
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  6. #6
    Uranium Lounger
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    Re: Backdoor.Snowdoor

    <center>
    <hr>And why does it keep reappearing after being removed and quarantined?<hr>
    </center>Do you have the unlimited trial version of Spyware Doctor or did you buy it ??? If you didn't purchase the program, that's likely the reason.

    From this site..... Note: This time-unlimited trial version does not remove existing threats during scans, but real-time detection and removal of incoming threats is enabled.
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  7. #7
    Super Moderator jscher2000's Avatar
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    Re: Backdoor.Snowdoor

    > Norton Antivirus 2003

    That version of NAV predates the trojan. Presumably you have made the necessary arrangements to continue downloading new virus signature files. However, different vendors have different approaches to the components they upgrade under such a license. There may be some program components that are not able to detect the latest threats if they use more recently invented stealthing technologies. You might consider using a more recent AV program (e.g., NAV 2006 or one of its many competitors). Unfortunately, I don't know what more recent programs work with Windows 98SE/ME...

  8. #8
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    Re: Backdoor.Snowdoor

    AVG Free Edition is compatible with all major operating systems, including Me/98/2000 and higher. For 95/NT Microsoft IE 5.01 or higher is required).

    Maybe this software is a bit more up-to-date provided the virus definition files are kept up-to-date. I have it loaded on three of my friends' Windows 98 computers so I am placing confidence in it.

    ps: .....at least it is good for fighting virus problems


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  9. #9
    Uranium Lounger
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    Re: Backdoor.Snowdoor

    Norton no longer supports or updates the 2003 product, so the definitions are certainly out of date. When I renewed my subscription to Norton AV in 2005 I was told I also had to upgrade my software to continue receiving updates. And as I stated in my previous post, if the OP is running the trial version of Spyware Doctor then it is not removing the problem completely as is stated on their website.

    I woud recommend a complete overhaul of the system security here.
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  10. #10
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    Re: Backdoor.Snowdoor

    Spyware Doctor gives no details other that Backdoor.Snowdoor, and yes I have a registered, paid version of the program. My Norton virus definitions are up to date, the most recent update being 21 June 2006.

  11. #11
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    Re: Backdoor.Snowdoor

    Sorry Doc, as long as your subscription is still valid, Norton 2003 will update the virus definitions. I just did a system recovery on a system that had a 60 day trial for NAV 2003 and it updated the program and the virus definitions just fine.

  12. #12
    Gold Lounger Rebel's Avatar
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    Re: Backdoor.Snowdoor

    One of the computers I support has NAV 2003 and although LiveUpdate (as Doc says) will no longer update the definitions, a manual download and install does work. <img src=/S/shrug.gif border=0 alt=shrug width=39 height=15> .
    John
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  13. #13
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    Re: Backdoor.Snowdoor

    Hi Rebel, as I said, I just did a system recovery which included NAV 2003 and it updates just fine - using Live Update. I have several other systems that I support that has NAV 2003 and my experience is the same with them. But then, whatever??

  14. #14
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    Re: Backdoor.Snowdoor

    My experience is the same as John's with this. But I don't doubt for a minute that it works on some other systems. If computers made sense all the time, there wouldn't be a need for sites like this. <img src=/S/nope.gif border=0 alt=nope width=15 height=15> <img src=/S/smile.gif border=0 alt=smile width=15 height=15>
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