Win32.HLLW.Autoruner.57544

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /X'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wiofuay' = '%HOMEPATH%\wiofuay.exe /r'

Creates the following files on removable media:

<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\mNB.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\wiofuay.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\wiofuayx.exe

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Creates and executes the following:

%HOMEPATH%\wiofuay.exe

Modifies file system :

Creates the following files:

%HOMEPATH%\wiofuay.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\wiofuay.exe
<Drive name for removable media>:\wiofuayx.exe
<Drive name for removable media>:\mNB.ico
%HOMEPATH%\wiofuay.exe
<Drive name for removable media>:\autorun.inf

Network activity:

Connects to:

'ns#.##ayer1532.com':8003

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

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Technical Information