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Added to the Dr.Web virus database: 2019-10-11

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '%ProgramFiles(x86)%\install\dwm.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '%ProgramFiles(x86)%\install\dwm.exe'
  • [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '%ProgramFiles(x86)%\install\dwm.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '%ProgramFiles(x86)%\install\dwm.exe'
  • [<HKLM>\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{PMXJ67H3-OH0A-55S0-EMD0-571031U7AHPH}] 'StubPath' = '%ProgramFiles(x86)%\install\dwm.exe Restart'
  • [<HKLM>\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{PMXJ67H3-OH0A-55S0-EMD0-571031U7AHPH}] 'StubPath' = '%ProgramFiles(x86)%\install\dwm.exe'
Malicious functions
Injects code into
the following system processes:
  • %WINDIR%\syswow64\explorer.exe
Modifies file system
Creates the following files
  • %ProgramFiles(x86)%\install\dwm.exe
  • %TEMP%\user2.txt
  • %APPDATA%\userlog.dat
  • %TEMP%\user7
  • %TEMP%\user8
Sets the 'hidden' attribute to the following files
  • %APPDATA%\userlog.dat
Deletes the following files
  • %TEMP%\user2.txt
  • %TEMP%\user8
  • %TEMP%\user7
Substitutes the following files
  • %TEMP%\user8
  • %TEMP%\user7
Network activity
Creates and executes the following
  • '%ProgramFiles(x86)%\install\dwm.exe'
Executes the following
  • '%WINDIR%\syswow64\explorer.exe'
  • '%ProgramFiles(x86)%\internet explorer\iexplore.exe'

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