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Win32.HLLW.Autoruner.52918

Added to the Dr.Web virus database: 2011-06-28

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /a'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /X'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /N'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /C'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /M'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /R'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /u'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'keafia' = '%HOMEPATH%\keafia.exe /G'
Creates the following files on removable media:
  • <Drive name for removable media>:\Pictures.lnk
  • <Drive name for removable media>:\Documents.lnk
  • <Drive name for removable media>:\Video.lnk
  • <Drive name for removable media>:\Music.lnk
  • <Drive name for removable media>:\Passwords.lnk
  • <Drive name for removable media>:\keafia.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\keafiax.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%\bxcess.exe 
  • %HOMEPATH%\cxcess.exe 
  • %HOMEPATH%\axcess.exe 
  • %HOMEPATH%\keafia.exe 
Executes the following:
  • <SYSTEM32>\cmd.exe /c """%HOMEPATH%\a.bat"" "
  • <SYSTEM32>\svchost.exe
  • <SYSTEM32>\tasklist.exe
Injects code into
the following user processes:
  • firefox.exe
  • iexplore.exe
  • YahooMessenger.exe
  • msnmsgr.exe
  • ICQ.exe
Searches for windows to
detect programs and games:
  • ClassName: 'SkinuxWindow' WindowName: 'MySpaceIM with Skype'
Modifies file system :
Creates the following files:
  • %HOMEPATH%\dxcess.exe
  • %HOMEPATH%\keafia.exe
  • %HOMEPATH%\a.bat
  • %HOMEPATH%\axcess.exe
  • %HOMEPATH%\bxcess.exe
  • %HOMEPATH%\cxcess.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\keafia.exe
  • <Drive name for removable media>:\keafiax.exe
  • %HOMEPATH%\keafia.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %HOMEPATH%\axcess.exe
  • %HOMEPATH%\bxcess.exe
Network activity:
Connects to:
  • 'kw##ium.net':80
TCP:
HTTP POST requests:
  • kw##ium.net/bugatti.php?in##############################################################################################################
UDP:
  • DNS ASK kw##ium.net
  • DNS ASK ao#.com
  • DNS ASK pa##al.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''