1. You are viewing our forum as a guest. For full access please Register. WindowsBBS.com is completely free, paid for by advertisers and donations.

c:\windows\system32\dllcache

Discussion in 'Windows XP' started by BreezyCricket, 2003/10/30.

Thread Status:
Not open for further replies.
  1. 2003/10/30
    BreezyCricket Lifetime Subscription

    BreezyCricket Well-Known Member Thread Starter

    Joined:
    2002/01/20
    Messages:
    272
    Likes Received:
    1
    This folder on my PC is a different colour to all the others and I would like to know if there is any significance to this.

    Why I ask is because I use (used) a well known antivirus program, a good firewall and I update my O/S files regularly, yet something erased all the "exe" files on my backup drive.

    I ran a free online virus scan from another AV Program and the first message I received was that a "nachi.worm" had been found and removed. This is why I say I ^used^ a well known antivirus program. After all, why pay for something which doesn't work.

    And while I have the attention of some of the Guru's on this BBS, perhaps someone can tell me how to determine if I am rid of this garbage.

    Many Thanks.
     
    BreezyCricket,
    #1
  2. 2003/10/30
    Christer

    Christer Geek Member Staff

    Joined:
    2002/12/17
    Messages:
    6,585
    Likes Received:
    74
    Hi!

    The different colour, blue I guess, shows files and folders that have been compressed by the OS. There is a setting for a certain number of days before this happens. The files can be used as if they weren´t compressed.

    Do an online check for virii and other unwanteds:

    Do You have parasites

    Trend Micro House Call

    Wilders Free Services

    HTH,
    Christer
     
    Christer,
    #2


  3. to hide this advert.

  4. 2003/10/30
    charlesvar

    charlesvar Inactive Alumni

    Joined:
    2002/02/18
    Messages:
    7,024
    Likes Received:
    0
    Hello BreezyCricket,

    * yet something erased all the "exe" files on my backup drive.*

    One process that will do this is System Restore if you did a restore to a point prior to a Restore point before updating the backup drive. You might not want SR to monitor that drive, only the OS drive, or create a restore point after updating the backup drive.

    It sounds improbable that a virus would act on backups instead of the OS partition.

    Regards - Charles
     
    charlesvar,
    #3
  5. 2003/10/30
    BreezyCricket Lifetime Subscription

    BreezyCricket Well-Known Member Thread Starter

    Joined:
    2002/01/20
    Messages:
    272
    Likes Received:
    1
    Hi Christer:

    The Trend Micro Housecall is what found the Nachi.Worm, and hopefully this will now be a thing of the past.

    Charlesvar:

    I thought it unlikely that anyone would start a virus that would do it's damage on a backup drive, but I also watched the America's Cup sailing and the Kiwi's had a, 'boat that wouldn't float', so I thought anything was possible.

    I have been having considerable trouble with some "New" drives I purchased and have had to do a number of restores, which, if you are correct, and I would bet dollars to doughnuts you are, would account for this.

    Many Thanks for both replies.
     
    BreezyCricket,
    #4
  6. 2003/10/30
    Christer

    Christer Geek Member Staff

    Joined:
    2002/12/17
    Messages:
    6,585
    Likes Received:
    74
    BreezyCricket,
    You´re welcome!

    The nachi.worm is known under a few alias', among others W.32.Welchia.Worm.

    You can get more information and links to MS Bulletins on Symantecs W.32.Welchia.Worm page and to be sure that it´s in history, download and run this Removal Tool. It will run and either tell You that it doesn´t exist on Your system or remove it.

    Christer
     
    Christer,
    #5
  7. 2003/10/30
    BillyBob Lifetime Subscription

    BillyBob Inactive

    Joined:
    2002/01/07
    Messages:
    6,048
    Likes Received:
    0
    BreezyCricket

    I will not say where I learned it but it was the data hard losing way.

    It is not a good idea to set System Restore to monitor any backup drives.

    I myself have it set to monitor the OS drive only.

    BillyBob
     
    Last edited: 2003/10/30
    BillyBob,
    #6
  8. 2003/10/30
    BreezyCricket Lifetime Subscription

    BreezyCricket Well-Known Member Thread Starter

    Joined:
    2002/01/20
    Messages:
    272
    Likes Received:
    1
    Thanks for the info.

    This was also suggested by Charlesvar and I immediately removed the backup drive from SR.
     
    BreezyCricket,
    #7
  9. 2003/10/30
    BillyBob Lifetime Subscription

    BillyBob Inactive

    Joined:
    2002/01/07
    Messages:
    6,048
    Likes Received:
    0
    There was a line missing in my reply

    I agree with charlesvar

    For me it is a good thing that I did have problems with my Quicken and a couple of other programs.

    I have since begun to but backups on CD RW also.

    That is one problem with System Restore. If you do not make a new RP after making changes all the work can be lost.

    BillyBob
     
    BillyBob,
    #8
Thread Status:
Not open for further replies.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...