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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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