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Virus:W97M/Class.BW description and removal instruction


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Technical information
Removal instructions

Technical information

The Virus:W97M/Class.BW will install rogue security software PC Health Advisor into the affected computers without users knowledge. The Virus:W97M/Class.BW file size is 36864 bytes.


Once launched, the Virus:W97M/Class.BW performs the following actions:

  • Download rogue security tool PC Health Advisor from the following domains:
  • Modify the properties of the following files:

    (36864 bytes; detected by HitMalware as " Virus:W97M/Class.BW")
  • Removal instructions

    If your machine doesn't have antivirus/antispyware, please take the following steps to resolve the problems caused by Virus:W97M/Class.BW:

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

    2. Perform a full Virus:W97M/Class.BW scan by using the latest antivirus/antispyware HitMalware.
    (Download Trial Version Now)

    MD5: 65810506581050

    How to replace cryptbase.dll by using DLL Suite

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