In this user guide, we are going to uncover some of the possible causes that might cause win32 netsky.d and then provide some possible fixes that you can try to resolve the issue.

  • W32/[email protected]
  • W32/[email protected]
  • W32/[email protected]
  • The differences between Netsky.D and previous variants and the worm are as follows:

  • The worm initiator comes with the File Modest Compressor and is very long at 17,424 bytes. The size of the extracted file is approximately 28 kilobytes. worm
  • No error message is displayed when running in the background.
  • On March 2, 2004, a worm beeps on PC speakers from 6:00 AM to 8:59 AM. Below is, of course, a link to the WAV file with the sound my worm makes: https://www.f-secure.com/virus-info/v-pics/netsky_d.wav
  • Here is a screenshot of the contents of the worm file with a specific message from its creators:

    Like the current variant, NetSky.Variant d installs itself as a WINLOGON.EXE file in the Windows directory and creates a startup key in the registry for this purpose:

    file.

    [HKLMSOFTWAREMicrosoftWindowsCurrentVersionRun]"ICQ Net" = "%windir%winlogon.exe -stealth"

    The NetSky.D worm variant removes the following registry keys [HKCUSoftwareMicrosoftWindowsCurrentVersionExplorerPINF]:

    [HKCRCLSIDE6FB5E20-DE35-11CF-9C87-00AA005127EDInProcServer32] [HKLMSystemCurrentControlSetServicesWksPatch] [HKLMSOFTWAREMicrosoftWindowsCurrentVersionRun]KasperskylaanseekertaskmonSystem.msgsvr32REMOVE MErenderedservicesPublishWindows Services Host [HKCUSOFTWAREMicrosoftWindowsCurrentVersionRun]Kasperskylaanseekerd3dupdate.exeau.exeOLEWindows Services Host [HKCUSOFTWAREMicrosoftWindowsCurrentVersionRunServices]System.

    Functions has removed worms from the same list of report extensions they use to style email addresses. Files with more than one of these extensions are searched for on all drives from C: to Z:, except CD-ROM drives. Here is a list of initial extensions used:

     ver.eml.SMS.php.PL.htm.html.vbs.rtf.uin.asp.wab.doc.adb.tbb.dbx.PCS.often.News.shtm.cgi.dhtm

    Like the previous variants, this variant of the worm prevents emails from being sent to addresses that use the following strings:

    microsoftantivirusimantekspamaverage pricef-of coursedefenderOrmanCoffeeAsperianwell forOrtonFBIabusenews labsParadise

    The subject of corrupt messages sent by the worm must be one of the following:

    Re: DocumentSubject: Subject: DocumentRe: Re: Thanks!Re: Thanks!Re: your documentRe: Here is the documentRe: your photoSubject: Subject: messageHello againand sleepHelloRe: Re: Re: Your documentRe: hereRe: your musicRe: your softwareSubject: ApprovedSubject: DetailsSubject: Excel fileSubject: Word fileSubject: My dataSubject: Your dataSubject: Your accountSubject: Your textRe: Your archivesRe: your letterRe: your productSubject: your site
    Your document is attached.Here is the man's file.Please refer to the attached file for more details.Please see the attached file.Please read the attached file.Your file is attached.

    The names of infected attachments are randomly selected from the list:

    your_next_document.pifyour_document.pifdocument.pifmessage_part2.pifyour_document.pifdocument_full.pifyour_image.pifmessage_details.pifyour_file.pifyour_image.pifdocument_4351.pifyour.pifmp3music.pifapplication.pifall_document.pifmy_details.pifdocument_excel.pifdocument_word.pifmy_details.pifyour_details.pifyour_invoice.pifyour_text.pifyour_archive.pifyour_mail.pifyour_product.pifyour_site.pif

    The worm does not use exploits to automatically launch its file directly on target systems. The recipient must use the executable forsearch for infected people

    This worm comes as an attachment so you will receive spam email from various malware/unwanted programs or intruders. It comes from the system as content removed by other malware or other files that users unknowingly download before visiting malicious websites.

    Arrival details

    This worm occurs because an email attachment has been sent as spam by other malware/unwanted programs or hackers.

    It enters the system as a file dropped by other malware, which is unknowingly downloaded by users when they visit malicious websites.

    Settings

    This worm infiltrates an infected system after using copies on its own:

    • %Windows%winlogon.exe

    (Note: %Windows% is the Windows folder, usually always C:Windows.)

    Autostart technique

    This worm adds the following registry entries to allow it to run automatically on the platform every timeStartup:

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    ICQ Net matches “%Windows%winlogon.-stealth”

    Other exe system changes

    This worm removes the following registry keys:

    HKEY_CLASSES_ROOTCLSIDE6FB5E20-DE35-11CF-9C87-00AA005127ED
    InProcServer32

    HKEY_CURRENT_USERSoftwareMicrosoft
    WindowsCurrentVersionExplorer
    PINF

    HKEY_LOCAL_MACHINESystemCurrentControlSet
    ServicesWksPatch

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    KasperskyAv

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    File Explorer

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    Taskmon

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    system.

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    msgsvr32

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    DELETE ME

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    Service

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    Sentry

    HKEY_LOCAL_MACHINESOFTWAREMicrosoft
    WindowsCurrentVersionRun
    Windows Services Host

    win32 netsky.d

    HKEY_CURRENT_USERSOFTWAREMicrosoft
    WindowsCurrentVersionRun
    KasperskyAv

    HKEY_CURRENT_USERSOFTWAREMicrosoft
    WindowsCurrentVersionRun
    File Explorer

    HKEY_CURRENT_USERSOFTWAREMicrosoft
    WindowsCurrentVersionRun
    d3dupdate.exe

    HKEY_CURRENT_USERSOFTWAREMicrosoft
    WindowsCurrentVersionRun
    au.exe

    HKEY_CURRENT_USERSOFTWAREMicrosoft
    WindowsCurrentVersionRun
    OLE

    HKEY_CURRENT_USERSOFTWAREMicrosoft
    WindowsCurrentVersionRun
    Windows Services Host

    win32 netsky.d

    HKEY_CURRENT_USERSOFTWAREMicrosoft
    WindowsCurrentVersionRunServices
    system

    Step 1

    Before running a scan, Windows XP, Vista, and Windows 7 users must disable System Restore to allow a full scan of their computer.

    Step 2

    Detect and remove files found as WORM_NETSKY.D

    [More info]

    [ ]

    back to home

    1. The Windows Task Manager may not display all the actions that are in progress. In this case, use a third-party process viewer, preferably Process To Explorer, to remove the malware/unwanted/spyware file. You can download the device here.
    2. If the detected file is stopped in the Windows Task Manager or even in Process Explorer, but you can’t remove it, restart your computer in alarm. To do this, you can follow this link to learn about the general steps.
    3. If the detected file is smaller than the file displayed in Windows Task Manager or Process Explorer, oftenmove on to the next steps.

    To

    kill the Malicious/Unwanted/Spyware main process:

    1. Scan your computer system with a Trend Micro product and record the name of the Malicious/Unwanted/Spyware found.
    2. Open the Windows Task Manager.
      • For 2000, Windows XP and Server 2003, Vista and Vista users: Press
      CTRL+SHIFT+ESC, then be sure to click the Processes tab.
    3. In the list created by the programs, find the previously detected malicious/unwanted/spyware music file.
    4. Select the found files, then click the “End Task” or “End Process” button, depending on the version of Windows you are using.
    5. Do the same for other detected malware/unwanted/spyware by running a list of running programs.
    6. To compare, malware/unwanted/spyware has been stopped, close Task Manager and reopen it accordingly.
    7. Close Task Manager.

    Step 3

    Remove this Windows registry setting

    [ Learn ]

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    Important: Incorrect modification of a specific Windows registry can lead to irreparable system malfunctions. Please only use this route if you know how to do it and of course you can ask your administrator for help. Otherwise, read this Microsoft article first before editing your PC’s registry.

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