Win32/AutoRun.CH [Threat Name] go to Threat

Win32/AutoRun.CH [Threat Variant Name]

Category worm
Size 221184 B
Aliases Virus.Win32.AutoRun.fb (Kaspersky)
  Generic.VB.b (McAfee)
  W32.SillyFDC (Symantec)
Short description

Win32/Autorun.CH is a worm that spreads via removable media.


When executed, the worm copies itself into the %windir% folder using the following name:

  • Knight.exe

In order to be executed on every system start, the worm sets the following Registry entry:

  • [HKEY_LOCAL_MACHINE\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "Disk Knight" = "%windir%\­Knight.exe"

The following Registry entries are set:

  • [HKEY_LOCAL_MACHINE\­Software\­Microsoft\­Windows\­CurrentVersion\­Uninstall\­Disk Knight]
  • "DisplayName" = "Disk Knight"
  • "UninstallString" = "%windir%\­Knight.exe uninstall"
  • "DisplayVersion" = "2.0"
  • "Publisher" = "Kalpurush"
  • "HelpLink" = ""
  • "Readme" = "res://%windir%\­Knight.exe/about.html
  • "Contact" = ""
Spreading on removable media

The worm copies itself into the root folders of removable drives using the following name:

  • Knight.exe

The following file is dropped in the same folder:

  • autorun.inf

Thus, the worm ensures it is started each time infected media is inserted into the computer.

Other information

The worm blocks application execution.

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