How Can You Remove A Trojan.zlob From Your Computer, If Your Antivirus Can’t Remove It For You?

Posted on 22nd October 2009

After trying to download an upgrade for a Video ActiveX Access, I got a Trojan.Zlob. This specific Trojan allows the remote attacker to perform various malicious actions on the compremised computer. The file name is called iesplg.dll. It is impossible to remove it the traditonnal way with the program available in the control pannel, nor with the help of my Norton Antivirus. How can I get rid of this virus with rebboting my whole computer?
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12 Responses to “How Can You Remove A Trojan.zlob From Your Computer, If Your Antivirus Can’t Remove It For You?”

  1. Risuke O Says:

    Try a online antivirus scanner and a online anti-adware/malware/spyware scanner in safe mode with network to clean up your computer BEFORE you download anything. This because the program you download can get infected.
    Disable “System Restore” for Windows Me and XP, then restart your PC to clean your system restore points for viruses, spyware, adware etc.http://www.microsoft.com/technet/communi…
    Now restart in safe mode.
    To get in safe mode Press “F8″ upon boot up.
    Select “Safe mode with Network”.
    Go to Start – Run - type iexplore http://www.bitdefender.com/scan8/ie.html Enter(ok).
    Do a full scan of all your drives. If something is found, delete it, reboot and do the same again in safe mode with network.
    When that scan does not find anything you reboot again in safe mode with network.
    Go to Start – Run – type iexplore http://www.ewido.net/en/ Enter(ok).
    Do a full scan of all your drives. If something is found, delete it, reboot and do the same again in safe mode with network.
    **NOTE**: Do NOT do anything else with your computer when scanning. This because you can start virus/adware/spyware/malware manually.
    When no one of these scanners are showing anything you can reboot back to normal mode.
    Turn on “System Restore”.
    —————
    Antivirus: BitDefender Online scanner - will scan and remove threats.
    Anti adware/spyware: Ewido Online Scanner - will scan and remove threats.
    —————
    **NOTE**: Only have one antivirus program and one firewall installed on your computer.
    Anti-adware/malware/spyware are ok to have more off.
    You need to get one antivirus program, one firewall, pop up blocker and some spyware/adware/malware removers if you don’t have it.
    ……………….
    I use this and more on my Windows XP Home SP2 computer:
    BitDefender Antivirus (Real Time): http://www.bitdefender.com/no/view/Downl…
    Comodo Firewall: http://www.personalfirewall.comodo.com/
    Anti adware/spyware/malware:
    Ad-Aware: http://www.lavasoft.com/products/ad_awar…
    Comodo Anti-malware (Real Time): http://www.comodo.com/boclean/boclean.ht…
    Spybot S&D: http://www.safer-networking.org/en/index…
    SuperAntiSpyware: http://superantispyware.com/
    AVG Anti-Rootkit http://www.grisoft.com/doc/download-free…
    CCleaner is a freeware system optimization and privacy tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. http://www.ccleaner.com/
    All are free.
    **NOTE**: Only have one antivirus program and one firewall installed on your computer.
    Anti-adware/malware/spyware are ok to have more of.
    Good Luck.
    Ubuntu 7.04 Feisty Fawn user.
    JTB

  2. JTB Says:

    Disable System Restore (Windows Me/XP).
    Update the virus definitions.
    Run a full system scan and delete all the files detected.
    Delete any values added to the registry.
    Reset the Internet Explorer home page.
    Reset the Internet Explorer search page.
    For specific details on each of these steps, read the following instructions.
    1. To disable System Restore (Windows Me/XP)
    If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.
    Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.
    Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.

  3. ladybug Says:

    First, turn OFF System Restore. If you leave it on and you have to Restore your puter later, you’ll just re-infect the thing!!!
    Second, go to this site and USE it! :::http://support.f-secure.com/enu/home/ols…
    You want to do this because your onboard anti-malware progs may be infected, too. Once you know they’re clean THEN Update and Run them!
    Then, if you want/need to you can follow spywaredr’s (Answer 5) LONG list of suggestions.

  4. x_southe Says:

    try GarbageClean antispyware from http://www.SecureMyWindows.com to remove Zlob

  5. Sat Says:

    One of your problems is you are using Norton.
    The other is that Trojan may not be a Virus it may be Spyware and Anti Virus programs will not remove SpyWare.
    Try AD-Aware 2007 and SpyBot Search and Destroy to clean out the Spyware. They are both free programs.
    For a Free anti virus program, when you get tired of paying good money to Norton, use AVG Free or AVAST. They both are higher rated than Norton.

  6. Bill Says:

    AntiSpyware Programs normally remove Trojans!
    AVG AntiSpywarehttp://www.free.grisoft.com
    Emsisoft A-Squared 3.0http://www.emsisoft.com
    Ad-Aware 2007http://www.lavasoft.com
    Comodo BOCleanhttp://www.comodo.com
    Also download the free version of BitDefender. This is like a back-up antivirus..
    It is compatable with most, for the reason being that it does not protect, but only scan, update, remove and quarantine.

  7. Mike Says:

    Superantispyware constantly adds zlob variants to its database, so Superantispyware should remove it:http://www.superantispyware.com/
    In the event that Super… doesn’t remove your particular zlob trojan, then Roguefix definitely will:http://www.internetinspiration.co.uk/rog…

  8. heebus_j Says:

    Ha! This happened to me.. Say goodbye to music files, pics, and everything else. What you’ll have to do is find your original restore disks that came with your computer and just run them through. ALSO AND MOST IMPORTANT dont even think about trying to put ure files onto a usb drive. Youll transfer the virus right back to your cpu. Just run the disks through and it will be fine.

  9. forced_s Says:

    For info and removal see link below.
    download free 30 day trial
    hope this helps.

  10. Michael Says:

    Do yourself a favor and please don’t listen to the people telling you to run all sorts of antivirus. There is absolutely NO way to be sure that everything has been removed. When someone creates a malicious program, they test it against all sorts of antiviruses before they release it. Backup documents, restore the computer. It’s really the only way, don’t set yourself up for the same thing down the road… or a stolen identity.

  11. Diana Says:

    VIRUS REMOVAL:
    this is a realll P.I.A. !!!
    THE 1ST PART YOU NEED TO DO offline:
    run anti-virus program
    run anti spyware program
    shut down System Restore
    clear cookies
    clear temp files
    clear history
    clear pre-fetch folder
    clear out ALL emails starting at 2-3 days ago or when you 1st knew you were infected in:
    ALL folders
    sent
    trash
    junk
    bookmarks or favorites folder in I.E. or Firefox
    as you can see,there’s QUITE a bit of work ahead of you.
    shut down System Restore:
    virus/spyware can hide in your system restore points so we shall delete all previous restore links hiding places by turning system restore OFF.
    later,when we finish,we’ll turn it back on,set up a new [ CLEAN ] restore to work from in the future.
    hopefully,lol,you’ll never need it !
    XP Home:
    start
    all programs
    accessories
    system tools
    system restore
    settings
    drive [c]
    settings
    check the OFF link
    VISTA:
    start
    control panel
    performance and information tools
    open disk clean up
    select o.s. [c]
    select more options
    select system restore and shadow copies
    select clean up
    XP Home & Vista:
    start
    control panel
    internet options
    general
    clear cookies
    clear temp files
    clear history
    and set history days to keep to 0
    clear temp files
    not all your temp files will be removed so easily,so we need to do this manually as well.
    start
    my computer [ or just computer in Vista ]
    windows
    temp
    file
    click each file and delete
    Clear Pre-Fetch Files
    start
    my computer [ or just computer in Vista ]
    windows
    prefetch
    file
    select all
    press delete key on keyboard
    empty recycle bin
    run anti-virus and anti-spyware programs again
    when your protection programs find any pirates,DELETE them,do NOT quarantine !!
    should you NOT have ANY protection programs installed:
    Avast–anti-virus
    AD Aware–anti-spyware
    Spyware Blaster–anti-spyware blocker
    Rootkit Revealer–anti-rootkit
    Arovax
    PC Tools Firewall–firewall to replace MS’s deficient firewall [ turn that sucker OFF ! ] and replace with above.
    replace windows firewall with PC Tools firewall
    install Arovax protection and choose protection for internet explorer if you use it,firefox if you use that or opera if you use that
    install spyware blaster and set for internet explorer and/or firefox protection
    should you choose to install Firefox web browser [ and you SHOULD ]
    here are some Firefox Security Extensions to install
    CallingID Link Advisor
    Finjan Secure Web Browsing
    No Script
    Dr. Web
    SafeDownloadshttp://browseraddons.friendpages.com…
    now it’s time to set up your new [ clean ] restore point
    XP Home:
    start
    all programs
    accessories
    system tools
    system restore
    settings
    drive [c]
    settings
    check the ON link
    Vista:
    start
    control panel
    back up and restore center
    create restore point
    create restore points on selected disks
    select drive
    click create
    apply and ok
    FINALLY….
    SECURE COMPUTER:
    NEVER !! :
    open an email from:
    anyone you do NOT know/trust
    anyone purporting to be/from:
    Microsoft
    your bank
    your creditors
    your government
    your financial company/ies
    even your lawyer/s or church UNLESS you have a prior agreement with them
    online petition
    contains attachment/s
    SAFE EMAIL SET UP:
    YAHOO:
    open options link on your email page
    select spam
    Spam Protection
    Choose the tools you’ll use to protect your mail account from spam. Not sure what tools you need? Take a look at our Setup Guide for help.
    Spam Filter
    SpamGuard is ON
    For messages SpamGuard identifies as Spam:
    Immediately delete these messages upon receipt. (Note: If you choose this option, you will not be able to review the messages before they are deleted.)
    When I mark a message as Spam, in addition to deleting the message:
    Add the sender’s email address to my blocked addresses list
    Image Blocking
    Block images in messages that SpamGuard thinks are spam
    [ possible but 1 or the other ]
    Block all images until I’ve had a chance to look it over
    Block Addresses
    Block addresses from which you don’t want to receive mail.
    Add Block
    Enter email address (or domain) to block:
    GMAIL:
    Gmail has an EXCELLENT spam filter,learn to trust it.
    Spam Filtering is automatic,unlike Yahoo.
    Gmail offers a second way to protect your inbox by using filters.
    1st,you need to create labels [ folders ] to store your filtered email in.
    then create the label filter.
    SETTINGS:FILTERS:
    Create a new filter
    Create a Filter
    Choose search criteria - Specify the criteria you’d like to use for determining what to do with a message as it arrives. Use “Test Search” to see which messages would have been filtered using these criteria.
    From: Has the words:
    To: Doesn’t have:
    Subject: Has attachment
    after you fill the above out,you go to label [ folder ] selection.
    MSN HOTMAIL:
    on your email page,select options then more options
    Junk e-mail
    Filters and reporting
    Safe and blocked senders
    choose from these choices:
    Safe and blocked senders
    Safe senders
    Manage who is allowed to send you e-mail. Messages from safe senders will not be sent to the junk e-mail folder.
    Safe mailing lists
    Manage which mailing lists are sent to your account. Messages to safe mailing lists will not be sent to the junk e-mail folder.
    Blocked senders
    Manage who is blocked from sending you e-mail. Messages from blocked senders are automatically deleted.
    WINDOWS LIVE MAIL:
    JUNK E-mail
    Options:
    safe list only
    permanently delete suspected junk e-mail
    Safe Senders:
    add e-mail addresses to your safe list here
    check:
    also trust my Windows Contacts
    automatically add people i e-mail to the safe senders list
    Blocked Senders:
    add senders addresses here to create a blocked address list
    International:
    Blocked Encoding List:
    choose the language pack you do NOT want downloaded into your inbox here
    Phishing:
    check:
    protect me from potential Phishing emails
    move phishing emails to junk
    apply & ok
    Windows Live Mail has 2 other options:
    Tools
    message rules
    mail
    conditions:
    where you choose:
    from
    to
    subject
    content and more
    Message:
    junk e-mail
    add to:
    safe senders
    blocked senders
    Web Browsers:
    Internet Explorer:
    XP Home & Vista:
    start
    control panel
    internet options
    general
    history:
    clear history
    set days to keep to 0
    Privacy:
    advanced
    override
    First-party Cookies:
    Accept
    Always allow session cookies
    Third-party [ spyware ] Cookies
    Block
    ok
    Content:
    content advisor
    Enable
    ratings:
    set content you do NOT want permitted
    Approved Sites:
    add websites that ARE allowed ALWAYS here
    apply & ok
    Advanced:
    Phishing Filter
    enable
    Security:
    for Internet–Trusted Sites–Restricted Sites
    custom
    Enable Protected Mode
    Custom Level:
    XP Home:
    Active X:
    uncheck each active x control marked:
    unsafe
    unsigned
    Vista:
    be sure Active X controls and plugins is marked disable
    as well as Automatic prompting for Active X controls
    and download unsigned Active X controls
    and Initialize and script Active X controls not marked as safe
    XP & VISTA:
    Access data sources across domains-disable
    Allow scripting of Internet Explorer web browser control
    disable
    Allow script-initiated windows without size or position
    disable
    Allow websites to open windows without address or status bars
    disable
    Don’t prompt for client certificate selection when none exist
    Navigate sub-frames across different domains
    disable
    Use Phishing filter
    enable
    Allow status bar updates via script
    disable
    now for your Restricted Zone,EVERYTHING should be disabled EXCEPT:
    Pop up blocker
    Phishing Filter
    [internet,trusted,restricted]
    download signed-PROMPT
    auto-prompt-DISABLE
    binary & script-ENABLE
    download UNsigned-DISABLE
    download UNsafe-DISABLE
    run active x-ENABLE
    download SAFE -ENABLE
    Spy Sites
    Stop Web Sites from installing Spyware, Sleazeware and Cookies on your PC
    SpySites includes a database of over 4,600
    known Spy/Sleaze sites and guides you
    through the simple process of including them in
    Internet Explorer’s Restricted Zone and setting policies
    to prevent them from performing intrusive acts on your PC.
    By setting the policies for the Restricted
    sites zone to a very high level of security,
    you can be assured that any web sites added
    to the Restricted sites zone cannot do
    certain things which could compromise your privacy
    and security such as installing and/or running:
    Spysiteshttp://camtech2000.net/pages/spysites_pr…
    Pre-Fetch File Cleaning
    pre-fetch files are “cached” or stored copies of files/websites you visit each session
    after a period of time,these files hog up a LOT of disk space
    for this reason,i advocate the deletion weekly of those space hogs
    some claim that windows will automatically remove files older than 7 days
    I have found MY pc does NOT perform this task so I do it manually
    what happens is,when you go to a website,your pc looks into your pre-fetch file/folder
    to see if that website is “cached”,stored there FIRST
    this gives you a faster website load,BUT,you get the “cached” version and NOT the NEWEST version
    unless you have “check for newest version” checked in internet options
    it may take that website 1/2 a second longer to load
    but,you’ll get the newest version loading each time
    as added security,spyware removers often miss these files,so delete them manually.
    My Computer,disk drive [c],windows,pre-fetch,view,select… all,select delete
    same situation with Temp files:
    Temp File Folder
    i use Disk Clean to clean up extraneous files i no longer need
    however,every time i use Disk Clean,it DOESN’T clean out Temp Files!
    solution?
    My Computer,local disk drive [c],windows,temp
    you can safely delete each temp file there.
    i leave the most current [that day] alone.
    also,do not delete any FOLDER there
    folders have a folder icon,leave alone
    [ Vista,it's Computer ]
    Firefox Web Browser:
    tools
    options
    content
    check block pop ups
    load images automatically:
    exceptions:
    enter those websites addresses that show up on pop ups that appear AFTER you close a browser window
    also add those same urls to
    Privacy
    Cookies
    Exceptions
    there are a number of kewl Security add on firefox extensions i use and they are:
    CallingID link advisor
    Dr. Web [ link checker ]
    Finjan Secure Web Browsing
    No Script
    SafeDownloadhttp://browseraddons.friendpages.com…
    IF you follow all the above suggestions,you’ll not have the Fort Knox of computers,but Dammed close !

  12. spywared Says:

    you can easily restore your computer to an earlier date before you had the virus. just go to your start button and click on “help and support”. from there its step by step instructions to do it.

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