Win32.HLLW.Autoruner1.52815
Added to the Dr.Web virus database:
2013-08-03
Virus description added:
2013-08-03
Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\<Virus name>.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
Executes the following:
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NOFolderOptions /t REG_DWORD /d "1" /f
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d "1" /f
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v MicrosoftSecurity /t REG_DWORD /d <Virus name>.exe /f
- '<SYSTEM32>\sc.exe' start messenger
- '<SYSTEM32>\sc.exe' config messenger start= demand
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d "1" /f
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v disabletaskmgr /t REG_DWORD /d "1" /f
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\Currentversion\Explorer\Advanced /v Hidden /t REG_DWORD /d "2" /f
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v msconfig.exe /t REG_sz /d "1" /f
- '<SYSTEM32>\reg.exe' Add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v DisallowRun /t REG_DWORD /d "1" /f
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NOFolderOptions' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoControlPanel' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'DisallowRun' = '00000001'
Modifies file system :
Creates the following files:
- C:\autorun.inf
- C:\<Virus name>.exe
- <SYSTEM32>\<Virus name>.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\<Virus name>.exe
- C:\<Virus name>.exe
- <SYSTEM32>\<Virus name>.exe
- C:\autorun.inf
Miscellaneous:
Searches for the following windows:
- ClassName: '(null)' WindowName: 'Administrador de tareas de Windows'
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