Win32.HLLW.Autoruner1.17844
Added to the Dr.Web virus database:
2012-06-25
Virus description added:
2012-07-15
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Classes\cfgfile\shell\Open\command] '' = '%WINDIR%\windows.exe'
- [<HKLM>\SOFTWARE\Classes\exedfile\Shell\Open\Command] '' = '"%1" %*'
- [<HKLM>\SOFTWARE\Classes\excfile\shell\open\command] '' = '"%1" %*'
- [<HKLM>\SOFTWARE\Classes\.com] '' = 'cfgFile'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'explores' = 'C:\BootEx.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] ' SysMonitor' = '%WINDIR%\sysa.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe %WINDIR%\Sysa.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] ' SysMonitor' = '%WINDIR%\sysa.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\index.htm
- <Drive name for removable media>:\index\homedata.exe
- <Drive name for removable media>:\foldhta.hta
- <Drive name for removable media>:\Desktop.ini
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\materi.exe
- <Drive name for removable media>:\help.exe
- <Drive name for removable media>:\.exe
- <Drive name for removable media>:\-723557692.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Creates and executes the following:
- %WINDIR%\sysb.exe
- %WINDIR%\sysa.exe
- %WINDIR%\WinSystem.exe
Executes the following:
- %WINDIR%\explorer.exe <Current directory>\<Virus name>
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRun' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFind' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'DisallowRun' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoSetFolders' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoSMHelp' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRecentDocsMenu' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFavoritesMenu' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoPrinterTabs' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoDeletePrinter' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoAddPrinter' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoViewContextMenu' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoTrayContextMenu' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoControlPanel' = '00000001'
Modifies file system :
Creates the following files:
- %WINDIR%\system\oeminfo.ini
- %WINDIR%\system\oemlogo.bmp
- C:\log.exe
- C:\bootex.exe
- <SYSTEM32>\WindowsProtection.exe
- <SYSTEM32>\oeminfo.ini
- %WINDIR%\sysb.exe
- %WINDIR%\Log.txt
- %WINDIR%\sysa.exe
- <SYSTEM32>\oemlogo.bmp
- <Current directory>\<Virus name>\<Virus name>.exe
- %WINDIR%\WinSystem.exe
- %WINDIR%\Win System.exe
- C:\encrypt.txt
- <Current directory>\Log.txt
- %WINDIR%\windows.exe
- %WINDIR%\MonitorSetup.exe
- %WINDIR%\MonitorMission.run
- %WINDIR%\SystemMonitor64.exe
- %WINDIR%\WinSys32.exe
- %WINDIR%\runrunrun.exe
Deletes the following files:
- %TEMP%\~DF8071.tmp
- %TEMP%\~DFCE76.tmp
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'sysa'
- ClassName: 'explorewclass' WindowName: ''
- ClassName: '' WindowName: 'sysb'
- ClassName: '' WindowName: 'winsystem'
- ClassName: 'Indicator' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'cabinetwclass' WindowName: ''
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