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Profile

Win32.HLLW.Autoruner1.35831

Added to the Dr.Web virus database: 2013-04-28

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'NVIDIA Media Center Library' = '%HOMEPATH%\%USERNAME%1\winlogon.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'NVIDIA Media Center Library' = '%HOMEPATH%\%USERNAME%1\winlogon.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\DrivesGuideInfo.lnk
  • <Drive name for removable media>:\DrivesGuideInfo\svchost.exe
  • <Drive name for removable media>:\DrivesGuideInfo\S-1-9-01-3739977401-4444491267-600313374-9146\Desktop.ini
  • <Drive name for removable media>:\DrivesGuideInfo\S-1-9-01-3739977401-4444491267-600313374-9146\svchost.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
  • file extensions
blocks the following features:
  • System Restore (SR)
  • User Account Control (UAC)
  • Windows Security Center
Creates and executes the following:
  • '%HOMEPATH%\%USERNAME%1\winlogon.exe'
Executes the following:
  • '<SYSTEM32>\svchost.exe'
Injects code into
the following system processes:
  • <SYSTEM32>\svchost.exe
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
  • %HOMEPATH%\%USERNAME%1\VERSION.TXT
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\VERSION[1].TXT
  • %HOMEPATH%\%USERNAME%1\winlogon.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\DrivesGuideInfo\S-1-9-01-3739977401-4444491267-600313374-9146\Desktop.ini
Network activity:
Connects to:
  • 'localhost':1040
  • '0-##############################1-0-1-1-1-0-0-0-1-1-1-1-1-1-1-.0-0-0-0-0-0-0-0-0-0-0-0-0-60-0-0-0-0-0-0-0-0-0-0-0-0-0.info':80
  • 'wh##.amung.us':80
  • '3-#############-r-y-7-g-b-3-8-9-8-4-l-j.cheaps1.info':80
TCP:
HTTP GET requests:
  • 0-##############################1-0-1-1-1-0-0-0-1-1-1-1-1-1-1-.0-0-0-0-0-0-0-0-0-0-0-0-0-60-0-0-0-0-0-0-0-0-0-0-0-0-0.info/VERSION.TXT
  • wh##.amung.us/widget/l96f428it5mt/
UDP:
  • DNS ASK 0-##############################1-0-1-1-1-0-0-0-1-1-1-1-1-1-1-.0-0-0-0-0-0-0-0-0-0-0-0-0-60-0-0-0-0-0-0-0-0-0-0-0-0-0.info
  • DNS ASK 3-#############-r-y-7-g-b-3-8-9-8-4-l-j.cheaps1.info
  • DNS ASK wh##.amung.us
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: '' WindowName: 'setup'