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Profil

Win32.HLLW.Autoruner.55141

Added to the Dr.Web virus database: 2011-07-27

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /E'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /v'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /H'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /Y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /S'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /b'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /Z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /N'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /W'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /T'
  • [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\662635080] 'Name' = '"%TEMP%\2.tmp"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /D'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /G'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /k'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /L'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'diaes' = '%HOMEPATH%\diaes.exe /a'
Creates the following files on removable media:
  • <Drive name for removable media>:\Documents.lnk
  • <Drive name for removable media>:\Passwords.lnk
  • <Drive name for removable media>:\Pictures.lnk
  • <Drive name for removable media>:\Video.lnk
  • <Drive name for removable media>:\Music.lnk
  • <Drive name for removable media>:\yoCR.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\diaes.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\diaesx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Creates and executes the following:
  • %HOMEPATH%\ymsrv.exe 
  • %HOMEPATH%\diaes.exe 
  • %HOMEPATH%\adnat.exe 
  • %HOMEPATH%\Xh3DMMINvfdQ9w77.exe 
Executes the following:
  • <SYSTEM32>\tasklist.exe
Injects code into
the following system processes:
  • <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1A10' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{AEBA21FA-782A-4A90-978D-B72164C80120}' = ''
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{A8A88C49-5EB2-4990-A1A2-0876022C854F}' = ''
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
Modifies file system :
Creates the following files:
  • %HOMEPATH%\diaes.exe
  • %TEMP%\1.tmp
  • %WINDIR%\Temp\3.tmp
  • %HOMEPATH%\adnat.dll
  • %HOMEPATH%\adnat.exe
  • %HOMEPATH%\Xh3DMMINvfdQ9w77.exe
  • %HOMEPATH%\ymsrv.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\diaes.exe
  • <Drive name for removable media>:\diaesx.exe
  • <Drive name for removable media>:\yoCR.ico
  • %HOMEPATH%\diaes.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %WINDIR%\Temp\3.tmp
  • %HOMEPATH%\Xh3DMMINvfdQ9w77.exe
  • %TEMP%\2.tmp
  • <DRIVERS>\etc\hosts
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''