Win32.HLLW.Autoruner.51821
Added to the Dr.Web virus database:
2011-06-15
Virus description added:
2011-06-15
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update System' = '%APPDATA%\lsass.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Update System' = '%APPDATA%\lsass.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'UserFaultCheck' = ''
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\ADFDsddщGSjhgзйтззщLLL\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
- <Drive name for removable media>:\ADFDsddщGSjhgзйтззщLLL\DFG-2352-26235-2322322-624621221-2622255\Desktop.ini
Malicious functions:
Creates and executes the following:
Injects code into
the following system processes:
Hides the following processes:
Modifies file system :
Creates the following files:
- %WINDIR%\pchealth\ERRORREP\UserDumps\lsass.exe.20110602-111621-00.hdmp
- %TEMP%\google_cache2.tmp
- %APPDATA%\lsass.exe
- %WINDIR%\pchealth\ERRORREP\UserDumps\lsass.exe.20110602-111621-00.mdmp
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\ADFDsddщGSjhgзйтззщLLL\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
- %APPDATA%\lsass.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: '' WindowName: 'BitDefender Firewall Alert'
- ClassName: '' WindowName: 'Windows Security Alert'
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