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Virus:DOS/Day31 description and removal instruction


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Technical information
Removal instructions

Technical information

The Virus:DOS/Day31 will install rogue security software Registry Bookmarks into the affected machines without users knowledge. The Virus:DOS/Day31 file size is 69120 bytes.


Once launched, the Virus:DOS/Day31 performs the following actions:

  • Download rogue security tool Registry Bookmarks from the following domains:
  • Modify the properties of the following files:

    (69120 bytes; detected by HitMalware as " Virus:DOS/Day31")
  • Removal instructions

    If your machine doesn't have antivirus/antispyware, please take the following steps to resolve the problems caused by Virus:DOS/Day31:

    1. Replace the infected file ntlanman.dll for free by using ntlanman.dll repair tool - DLL Suite. See how to replace ntlanman.dll by using DLL Suite.

    2. Perform a full Virus:DOS/Day31 scan by using the latest antivirus/antispyware HitMalware.
    (Download Trial Version Now)

    MD5: 38618753861875

    How to replace ntlanman.dll by using DLL Suite

  • Download DLL Suite, install and run
  • Click "Start Scan" button to check ntlanman.dll file
  • Choose ntlanman.dll and click "More Information"
  • Download ntlanman.dll for free from the open web page
  • Save ntlanman.dll to its default folder to replace infected ntlanman.dll file.
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