Win32.HLLW.Autoruner.51676

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WinSecurity' = '<SYSTEM32>\WinSecurity.exe'

Creates the following files on removable media:

<Drive name for removable media>:\New-Music.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:

hidden files
file extensions

blocks execution of the following system utilities:

Windows Task Manager (Taskmgr)
Registry Editor (RegEdit)

Creates and executes the following:

<SYSTEM32>\WinSecurity.exe

Executes the following:

<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 6 /t REG_SZ /d notepad.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 5 /t REG_SZ /d rstrui.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 8 /t REG_SZ /d avgtray.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 7 /t REG_SZ /d avp.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 2 /t REG_SZ /d msconfig.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 1 /t REG_SZ /d cmd.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 4 /t REG_SZ /d gpedit.msc /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 3 /t REG_SZ /d mmc.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 14 /t REG_SZ /d scan32.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 13 /t REG_SZ /d UdaterUI.exe /f
<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\Explorer\DisallowRun /v 15 /t REG_SZ /d smss.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 10 /t REG_SZ /d Mctray.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 9 /t REG_SZ /d egui.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 12 /t REG_SZ /d SHSTAT.exe /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun /v 11 /t REG_SZ /d mcshield.exe /f
<SYSTEM32>\reg.exe DELETE HKLM\Software\Microsoft\windows\CurrentVersion\Run /v McAfeeUpdaterUI /f
<SYSTEM32>\reg.exe DELETE HKLM\Software\Microsoft\windows\CurrentVersion\Run /v AVP /f
<SYSTEM32>\reg.exe DELETE HKLM\Software\Microsoft\windows\CurrentVersion\Run /v smss /f
<SYSTEM32>\reg.exe DELETE HKLM\Software\Microsoft\windows\CurrentVersion\Run /v ShStatEXE /f
<SYSTEM32>\reg.exe ADD HKLM\Software\Microsoft\windows\CurrentVersion\Run /v WinSecurity /t REG_SZ /d "<SYSTEM32>\WinSecurity.exe" /f
<SYSTEM32>\taskkill.exe /f /im service.exe
<SYSTEM32>\reg.exe DELETE HKLM\Software\Microsoft\windows\CurrentVersion\Run /v AVG8_TRAY /f
<SYSTEM32>\reg.exe DELETE HKLM\Software\Microsoft\windows\CurrentVersion\Run /v egui /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v HideFileExt /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v DisallowRun /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFind /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\Policies\Explorer /v NoFolderOptions /t REG_BINARY /d 00000001 /f
<SYSTEM32>\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v Hidden /t REG_DWORD /d 2 /f
<SYSTEM32>\reg.exe ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v CheckedValue /t REG_DWORD /d 0 /f

Modifies settings of Windows Explorer:

[<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] 'NoFolderOptions' = ''
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRun' = '00000001'

Modifies file system :

Creates the following files:

C:\New-Music.exe
C:\Autorun.inf
<SYSTEM32>\WinSecurity.exe

Sets the 'hidden' attribute to the following files:

C:\New-Music.exe
C:\Autorun.inf
<Drive name for removable media>:\Autorun.inf
<SYSTEM32>\WinSecurity.exe
<Drive name for removable media>:\New-Music.exe

Miscellaneous:

Searches for the following windows:

ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: '' WindowName: ''

Tecnologías

Términos

Formación y educación

Mitos

Technical Information