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Backdoor:Perl/C99shell.D description and removal instruction


Free Backdoor:Perl/C99shell.D Scan

Technical information
Removal instructions

Technical information

The Backdoor:Perl/C99shell.D will install rogue security software ADDelegates - Enterprise Edition into the affected machines without users knowledge. The Backdoor:Perl/C99shell.D file size is 640000 bytes.


Once launched, the Backdoor:Perl/C99shell.D performs the following actions:

  • Download rogue security tool ADDelegates - Enterprise Edition from the following domains:
  • Modify the properties of the following files:

    (640000 bytes; detected by HitMalware as " Backdoor:Perl/C99shell.D")
  • Removal instructions

    If your machine doesn't have antivirus/antispyware, please take the following steps to resolve the problems caused by Backdoor:Perl/C99shell.D:

    1. Replace the infected file advapi32.dll for free by using advapi32.dll repair tool - DLL Suite. See how to replace advapi32.dll by using DLL Suite.

    2. Perform a full Backdoor:Perl/C99shell.D scan by using the latest antivirus/antispyware HitMalware.
    (Download Trial Version Now)

    MD5: 45161454516145

    How to replace advapi32.dll by using DLL Suite

  • Download DLL Suite, install and run
  • Click "Start Scan" button to check advapi32.dll file
  • Choose advapi32.dll and click "More Information"
  • Download advapi32.dll for free from the open web page
  • Save advapi32.dll to its default folder to replace infected advapi32.dll file.
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