Win32.HLLW.Autoruner.51626

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buoij' = '%HOMEPATH%\buoij.exe /b'

Creates the following files on removable media:

<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\buoij.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\buoijx.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%\buoij.exe

Modifies file system :

Creates the following files:

%HOMEPATH%\buoij.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\buoij.exe
<Drive name for removable media>:\buoijx.exe
%HOMEPATH%\buoij.exe
<Drive name for removable media>:\autorun.inf

Network activity:

Connects to:

'ns#.###eo-shares.com':8000

UDP:

DNS ASK ns#.###eo-shares.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

Technologies

Terminology

Training and education

Myths

Technical Information