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Thread: Re: Popup blocker question

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  1. #1
    Jim Byrd Guest

    Re: Popup blocker question

    Hi Marvin - There are currently two classes of things going on that are
    causing people popup difficulties. If you get popups even when your browser
    is not connected to the Internet with a title bar reading "Messenger
    Service", then these are most likely due to open NetBios ports 135, 137-139
    and 445. You really need to block these with a firewall as a general
    protection measure. You can stop the popups by turning off Messenger
    Service; however, this still leaves you vulnerable. If you have an NT-based
    OS such as XP or Win2k, you should probably also specifically block the
    following additional ports as well: UDP 135, and TCP 593, and install the
    very important 823980 patch from MS03-026, here:
    http://support.microsoft.com/?kbid=823980.

    See: Messenger Service Window That Contains an Internet Advertisement
    Appears http://support.microsoft.com/?id=330904 which identifies reasons to
    keep this service and steps to take if you do.

    You can test your system and follow the 'Prevention' link to get additional
    information here:
    http://www.mynetwatchman.com/winpopuptester.asp Unless you have very good
    reasons to keep this active, it should be turned off in Win2k and XP. Go
    here and do what it says:
    http://www.itc.virginia.edu/desktop/docs/messagepopup/ or, even better, get
    MessageSubtract, free, here, which will give you flexible control of the
    service and viewing of these messages:
    http://www.intermute.com/messagesubtract/help.html Recommended.

    (FWIW, ZoneAlarm's default Internet Zone firewall configuration blocks the
    necessary ports to prevent this use of Messenger Service. I don't know the
    situation with regard to other firewalls.)

    Messenger Service is not per se Spyware or something that MS did wrong - It
    provides a messaging capability which is useful for local intranets and is
    also sometimes (albeit nowdays infrequently) used by some applications to
    provide popup messaages to users. However, it can also be (and now
    frequently is) used to introduce spam via this open NetBios channel.
    For a single user home computer, it normally isn't needed and can be turned
    off which will eliminate the spam popups. This DOESN'T, however, remove the
    vulnerability of having these ports open, when in fact they aren't needed,
    since they can be perverted in other ways as well, some of which can be much
    more damaging than just a spam popup.



    If you're getting a lot of popups while surfing, then the following may be
    useful:

    Popups - The best way to start is to get Ad-Aware 6.0, Build 162 or later,
    here: http://www.lavasoftusa.com/support/download/. Update and run this
    regularly to get rid of most "spyware/hijackware" on your machine.

    Another excellent program for this purpose is SpyBot Search and Destroy
    available here: http://security.kolla.de/ SpyBot Support Forum here:
    http://www.net-integration.net/cgi-b.../ikonboard.cgi I recommend
    using both normally. After fixing things with SpyBot S&D, be sure to re-boot
    and rerun SpyBot again and repeat this cycle until you get a clean "no red"
    scan.

    Then, there are a variety of third party "Popup Killers" available. I
    normally use AdShield, which, if you maintain its Block List every now and
    then, almost totally stops this. In addition, it stops a variety of
    ads/banners/etc. (particularly spyware like doubleclick) on pages I access.
    This is probably all you'll need; however, I've also investigated a program
    called ebwasher which appears to be very good, but decided that AdShield was
    sufficient. At the bottom of this post, you'll find a list provided courtesy
    of bc_acadia of a number of free popup blockers with links.

    ****** NOTE: As of 28 Apr 03 AdShield appears to have partnered with a new
    reseller, and AdShield is no longer free. There is a trial version of
    AdShield3; however, IMO it is seriously crippled in not being able to import
    or export block lists and I think for reasonable utility one would have to
    go to the full version. While I don't normally recommend non-free software,
    I personally will continue to use AdShield3, since I think it is the best
    currently available combined Popup/Ad/Malware blocker, but you should be
    aware of the fact that it now costs, ($29.95), whereas the earlier versions
    upon which I based my original recommendation were free, although not nearly
    as capable as the AdShield3 release. I've included below links to both the
    older free version and the new paid version. You'll have to investigate and
    make your own choice in the matter. *******

    Here are a number of AdShield-related links:

    http://www.fsd1.org/technology/Files/AdShield.exe - AdShield1.2 (free)
    http://www.internettechs.net/utilities/AdShield.exe - AdShield1.2
    (free)
    http://ftp.ural.ru/home/index/window...utils/AdShield -
    AdShield1.2 (free)
    http://www.megalog.ru/info/utilz/AdShield.zip - AdShield1.2 (free)
    http://www.allstarss.com/store/adshield.html - AdShield3
    http://www.mvps.org/winhelp2002/block.txt - (Mike Burgess' .txt Block List
    for AdShield)
    http://www.mvps.org/winhelp2002/block.zip - Mike Burgess' Zipped Block List
    for AdShield - Recommended)
    http://adshield.briankass.com/blocklists.html (lists a number of blocklists)
    http://adshield.briankass.com/blocklist.abl (brian's blocklist in .abl
    format)
    http://adshield.briankass.com/blocklist.txt (brian's blocklist in .txt
    format)
    http://www.songwave.com/software/adshield_blocklist.txt (40,000 pornsites
    blocked - *VERY* large list - use at your own risk)
    http://www.chrismyden.com/temp/block.abl (chrismyden's blocklist in .abl
    format)
    http://www.staff.uiuc.edu/~ehowes/resource.htm#AdShield (Eric Howes AGNIS
    for AdShield block list - Recommended) (BTW, Eric's site contains a wealth
    of very valuable information about all aspects of net security - Very Highly
    Recommended)

    There's also a new AdShield forum here:
    http://users.boardnation.com/~adshield/index.php

    Here's a good AdShield test site, courtesy of siljaline: "Make ***SURE***
    you have your block scripted popups enabled
    http://www.mediaboy.net/1010100-1100001-1111010/gahk/>>>> [Warning this URL
    opens a multitude of Browser windows almost instantly]"

    http://www.webwasher.com - Webwasher


    Additionally, some people have recommended Popup Stopper and PopupBuster,
    but they have also been reported or experienced to cause perceived problems
    for some people with "normal" links in IE6 such as Google search results and
    links from OE. Some proponents of PopupBuster assert, however, that this is
    normal operation for this program under
    certain circumstances which can be overridden if necessary. YMMV Another
    "Proxy" type blocker similar to Webwasher and Proxomitron but supposedly a
    bit easier to configure is Privoxy here: http://www.privoxy.org/

    Also, if you're comfortable allowing changes to the registry, there is an
    approach, IE-SPYAD, using the restricted sites list which can be used for
    scripted popups. I use this and it works very well. See here:
    http://www.staff.uiuc.edu/~ehowes/resource.htm

    There is additonal information about setting up and using AdShield, and
    about using the Restriced Zone (and an additional list) here:
    http://www.mvps.org/winhelp2002/hosts.htm and some of the Frequently Asked
    Questions (FAQ's) about AdShield here: http://adshield.briankass.com

    Lastly, ZoneAlarmPro3/4 has added provisions for stopping adds/popups,
    handling cookies, web bugs, and scripting/ActiveX components in addition to
    it's firewall functionality. Not free, but I have used it with my other
    AdBlocking stuff (AdShield, etc.) turned off as a test, and it appears to be
    very good indeed. So far I've experienced no problems at
    all with it set in its High Security modes for Ads although others have
    reported the need to temporarily turn it off to reach some sites. Also,
    Agnitum's Outpost Firewall supports a plug-in for this: "Pre-configured to
    block most banner advertisement. Can be configured manually or by simply
    dragging and dropping unwanted banners into the Ad Trashcan." I
    have no experience as to how effective it is, but I have received a
    favorable report.

    There's good information about hijacking in general and fixes available for
    specific hijackers here: http://www.spywareinfo.com/hijacked.html
    http://gmpservicesinc.com/Articles/hijack.asp
    http://www.mvps.org/inetexplorer/Darnit.htm#pop_up
    http://www.doxdesk.com/parasite/

    bc_acadia's list:

    "Some popup blockers. All of these are 100% pure freeware, no trial
    periods. Some of these do more than just handle popups.

    Pow!: http://www.analogx.com/contents/down...etwork/pow.htm
    NoAds: http://www.southbaypc.com/NoAds/
    PopupEraser: http://www.webknacks.com/popuperaser.htm
    Stop-the-Pop: http://www.bysoft.se/sureshot/stopthepop/index.html
    Internet Organizer: http://www.sf.yucom.be/wdprojects/
    PopKi: http://ranfo.com/popki.html
    PopUpPopper: http://www.bayden.com/Popper/default.asp
    PopUpKiller: http://sourceforge.net/projects/puk/
    AdCruncher Proxy:
    http://home.sprintmail.com/~dtrout/A...er/ReadMe.html
    KillAd: http://www.wplus.net/pp/fsc/
    ClickOff: http://www.johanneshuebner.com/en/download.html
    PopupBuster: http://www.popupbuster.com/PopUpBuster/
    Free Surfer: http://www.kolumbus.fi/eero.muhonen/FS/
    Window Shades: http://www.g-m-m.com/Software/WindowShades/index.php
    AdShield (my personal favorite): http://www.adshield.org/
    PopupStopper: http://www.panicware.com/popupstopper.html
    Proxomitron (has learning curve): http://www.proxomitron.org/
    For those who don't want third party stuff, your own pc's built-in
    host file:
    http://www.mvps.org/winhelp2002/hosts.htm and
    http://www.smartin-designs.com/ and http://www.accs-net.com/hosts/


    Here is a review of 61 popup killers, not all of them are free:
    http://www.popup-killer-review.com/index.htm"

    NOTE that this site also contains a good, comprehensive series of popup
    killer tests.


    Finally, there's a new class of hijacker using Window's Messenger Service
    (not Instant Messaging, BTW) that I discussed at first.

    Perhaps these will help.


    --
    Please respond in the same thread.
    Regards, Jim Byrd, MS-MVP



    In news:IYVZa.94419$3o3.6601763@bgtnsc05-news.ops.worldnet.att.net,
    marvin rosen <raghead@worldnet.att.net> typed:
    > Are there freeware popup blockers that do
    > not sit in the system tray?




  2. #2
    Thane@Cawdor.Net Guest

    Re: Popup blocker question

    On Wed, 20 Aug 2003 17:22:13 GMT, "Jim Byrd"
    <jamesrbyrd@spamlesscomcast.net> wrote:

    >Hi Marvin - There are currently two classes of things going on that are
    >causing people popup difficulties. If you get popups even when your browser
    >is not connected to the Internet with a title bar reading "Messenger
    >Service", then these are most likely due to open NetBios ports 135, 137-139
    >and 445. You really need to block these with a firewall as a general
    >protection measure. You can stop the popups by turning off Messenger
    >Service; however, this still leaves you vulnerable. If you have an NT-based
    >OS such as XP or Win2k, you should probably also specifically block the
    >following additional ports as well: UDP 135, and TCP 593, and install the
    >very important 823980 patch from MS03-026, here:
    >http://support.microsoft.com/?kbid=823980.
    >
    >See: Messenger Service Window That Contains an Internet Advertisement
    >Appears http://support.microsoft.com/?id=330904 which identifies reasons to
    >keep this service and steps to take if you do.
    >
    >You can test your system and follow the 'Prevention' link to get additional
    >information here:
    >http://www.mynetwatchman.com/winpopuptester.asp Unless you have very good
    >reasons to keep this active, it should be turned off in Win2k and XP. Go
    >here and do what it says:
    >http://www.itc.virginia.edu/desktop/docs/messagepopup/ or, even better, get
    >MessageSubtract, free, here, which will give you flexible control of the
    >service and viewing of these messages:
    >http://www.intermute.com/messagesubtract/help.html Recommended.
    >
    >(FWIW, ZoneAlarm's default Internet Zone firewall configuration blocks the
    >necessary ports to prevent this use of Messenger Service. I don't know the
    >situation with regard to other firewalls.)
    >
    >Messenger Service is not per se Spyware or something that MS did wrong - It
    >provides a messaging capability which is useful for local intranets and is
    >also sometimes (albeit nowdays infrequently) used by some applications to
    >provide popup messaages to users. However, it can also be (and now
    >frequently is) used to introduce spam via this open NetBios channel.
    >For a single user home computer, it normally isn't needed and can be turned
    >off which will eliminate the spam popups. This DOESN'T, however, remove the
    >vulnerability of having these ports open, when in fact they aren't needed,
    >since they can be perverted in other ways as well, some of which can be much
    >more damaging than just a spam popup.
    >
    >
    >
    >If you're getting a lot of popups while surfing, then the following may be
    >useful:
    >
    >Popups - The best way to start is to get Ad-Aware 6.0, Build 162 or later,
    >here: http://www.lavasoftusa.com/support/download/. Update and run this
    >regularly to get rid of most "spyware/hijackware" on your machine.
    >
    >Another excellent program for this purpose is SpyBot Search and Destroy
    >available here: http://security.kolla.de/ SpyBot Support Forum here:
    >http://www.net-integration.net/cgi-b.../ikonboard.cgi I recommend
    >using both normally. After fixing things with SpyBot S&D, be sure to re-boot
    >and rerun SpyBot again and repeat this cycle until you get a clean "no red"
    >scan.
    >
    >Then, there are a variety of third party "Popup Killers" available. I
    >normally use AdShield, which, if you maintain its Block List every now and
    >then, almost totally stops this. In addition, it stops a variety of
    >ads/banners/etc. (particularly spyware like doubleclick) on pages I access.
    >This is probably all you'll need; however, I've also investigated a program
    >called ebwasher which appears to be very good, but decided that AdShield was
    >sufficient. At the bottom of this post, you'll find a list provided courtesy
    >of bc_acadia of a number of free popup blockers with links.
    >
    >****** NOTE: As of 28 Apr 03 AdShield appears to have partnered with a new
    >reseller, and AdShield is no longer free. There is a trial version of
    >AdShield3; however, IMO it is seriously crippled in not being able to import
    >or export block lists and I think for reasonable utility one would have to
    >go to the full version. While I don't normally recommend non-free software,
    >I personally will continue to use AdShield3, since I think it is the best
    >currently available combined Popup/Ad/Malware blocker, but you should be
    >aware of the fact that it now costs, ($29.95), whereas the earlier versions
    >upon which I based my original recommendation were free, although not nearly
    >as capable as the AdShield3 release. I've included below links to both the
    >older free version and the new paid version. You'll have to investigate and
    >make your own choice in the matter. *******
    >
    >Here are a number of AdShield-related links:
    >
    >http://www.fsd1.org/technology/Files/AdShield.exe - AdShield1.2 (free)
    >http://www.internettechs.net/utilities/AdShield.exe - AdShield1.2
    >(free)
    >http://ftp.ural.ru/home/index/window...utils/AdShield -
    >AdShield1.2 (free)
    >http://www.megalog.ru/info/utilz/AdShield.zip - AdShield1.2 (free)
    >http://www.allstarss.com/store/adshield.html - AdShield3
    >http://www.mvps.org/winhelp2002/block.txt - (Mike Burgess' .txt Block List
    >for AdShield)
    >http://www.mvps.org/winhelp2002/block.zip - Mike Burgess' Zipped Block List
    >for AdShield - Recommended)
    >http://adshield.briankass.com/blocklists.html (lists a number of blocklists)
    >http://adshield.briankass.com/blocklist.abl (brian's blocklist in .abl
    >format)
    >http://adshield.briankass.com/blocklist.txt (brian's blocklist in .txt
    >format)
    >http://www.songwave.com/software/adshield_blocklist.txt (40,000 pornsites
    >blocked - *VERY* large list - use at your own risk)
    >http://www.chrismyden.com/temp/block.abl (chrismyden's blocklist in .abl
    >format)
    >http://www.staff.uiuc.edu/~ehowes/resource.htm#AdShield (Eric Howes AGNIS
    >for AdShield block list - Recommended) (BTW, Eric's site contains a wealth
    >of very valuable information about all aspects of net security - Very Highly
    >Recommended)
    >
    >There's also a new AdShield forum here:
    >http://users.boardnation.com/~adshield/index.php


    Thanks for that list...I'll be looking through them


    >
    >Here's a good AdShield test site, courtesy of siljaline: "Make ***SURE***
    >you have your block scripted popups enabled
    >http://www.mediaboy.net/1010100-1100001-1111010/gahk/>>>> [Warning this URL
    >opens a multitude of Browser windows almost instantly]"
    >
    >http://www.webwasher.com - Webwasher
    >
    >
    >Additionally, some people have recommended Popup Stopper and PopupBuster,
    >but they have also been reported or experienced to cause perceived problems
    >for some people with "normal" links in IE6 such as Google search results and
    >links from OE. Some proponents of PopupBuster assert, however, that this is
    >normal operation for this program under
    >certain circumstances which can be overridden if necessary. YMMV Another
    >"Proxy" type blocker similar to Webwasher and Proxomitron but supposedly a
    >bit easier to configure is Privoxy here: http://www.privoxy.org/
    >
    >Also, if you're comfortable allowing changes to the registry, there is an
    >approach, IE-SPYAD, using the restricted sites list which can be used for
    >scripted popups. I use this and it works very well. See here:
    >http://www.staff.uiuc.edu/~ehowes/resource.htm
    >
    >There is additonal information about setting up and using AdShield, and
    >about using the Restriced Zone (and an additional list) here:
    >http://www.mvps.org/winhelp2002/hosts.htm and some of the Frequently Asked
    >Questions (FAQ's) about AdShield here: http://adshield.briankass.com
    >
    >Lastly, ZoneAlarmPro3/4 has added provisions for stopping adds/popups,
    >handling cookies, web bugs, and scripting/ActiveX components in addition to
    >it's firewall functionality. Not free, but I have used it with my other
    >AdBlocking stuff (AdShield, etc.) turned off as a test, and it appears to be
    >very good indeed. So far I've experienced no problems at
    >all with it set in its High Security modes for Ads although others have
    >reported the need to temporarily turn it off to reach some sites. Also,
    >Agnitum's Outpost Firewall supports a plug-in for this: "Pre-configured to
    >block most banner advertisement. Can be configured manually or by simply
    >dragging and dropping unwanted banners into the Ad Trashcan." I
    >have no experience as to how effective it is, but I have received a
    >favorable report.
    >
    >There's good information about hijacking in general and fixes available for
    >specific hijackers here: http://www.spywareinfo.com/hijacked.html
    >http://gmpservicesinc.com/Articles/hijack.asp
    >http://www.mvps.org/inetexplorer/Darnit.htm#pop_up
    >http://www.doxdesk.com/parasite/
    >
    >bc_acadia's list:
    >
    >"Some popup blockers. All of these are 100% pure freeware, no trial
    >periods. Some of these do more than just handle popups.
    >
    >Pow!: http://www.analogx.com/contents/down...etwork/pow.htm
    >NoAds: http://www.southbaypc.com/NoAds/
    >PopupEraser: http://www.webknacks.com/popuperaser.htm
    >Stop-the-Pop: http://www.bysoft.se/sureshot/stopthepop/index.html
    >Internet Organizer: http://www.sf.yucom.be/wdprojects/
    >PopKi: http://ranfo.com/popki.html
    >PopUpPopper: http://www.bayden.com/Popper/default.asp
    >PopUpKiller: http://sourceforge.net/projects/puk/
    >AdCruncher Proxy:
    >http://home.sprintmail.com/~dtrout/A...er/ReadMe.html
    >KillAd: http://www.wplus.net/pp/fsc/
    >ClickOff: http://www.johanneshuebner.com/en/download.html
    >PopupBuster: http://www.popupbuster.com/PopUpBuster/
    >Free Surfer: http://www.kolumbus.fi/eero.muhonen/FS/
    >Window Shades: http://www.g-m-m.com/Software/WindowShades/index.php
    >AdShield (my personal favorite): http://www.adshield.org/
    >PopupStopper: http://www.panicware.com/popupstopper.html
    >Proxomitron (has learning curve): http://www.proxomitron.org/
    >For those who don't want third party stuff, your own pc's built-in
    >host file:
    >http://www.mvps.org/winhelp2002/hosts.htm and
    >http://www.smartin-designs.com/ and http://www.accs-net.com/hosts/
    >
    >
    >Here is a review of 61 popup killers, not all of them are free:
    >http://www.popup-killer-review.com/index.htm"
    >
    >NOTE that this site also contains a good, comprehensive series of popup
    >killer tests.
    >
    >
    >Finally, there's a new class of hijacker using Window's Messenger Service
    >(not Instant Messaging, BTW) that I discussed at first.
    >
    >Perhaps these will help.



  3. #3
    Jay T. Blocksom Guest

    Re: Popup blocker question

    On Sat, 23 Aug 2003 11:12:45 -0400, in <alt.privacy.spyware>,
    "Thane@Cawdor.Net" <Me@nospam.com> wrote:
    >

    [BIG snip]
    >
    > Thanks for that list...I'll be looking through them
    >

    [another BIG snip]

    And you needed to re-post "Jim Byrd"'s ENTIRE article, more than 200
    lines-worth, to say that?

    Furrfu!

    --

    Jay T. Blocksom
    --------------------------------
    Appropriate Technology, Inc.
    usenet01[at]appropriate-tech.net


    "They that can give up essential liberty to obtain a little temporary
    safety deserve neither liberty nor safety."
    -- Benjamin Franklin, Historical Review of Pennsylvania, 1759.

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