Win32.HLLW.Autoruner2.39855

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /Z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biuowiv' = '%HOMEPATH%\biuowiv.exe /m'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\FqOV.ico
<Drive name for removable media>:\biuowiv.exe
<Drive name for removable media>:\biuowivx.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\Video.lnk

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Modifies file system:

Creates the following files:

%HOMEPATH%\biuowiv.exe

Sets the 'hidden' attribute to the following files:

%HOMEPATH%\biuowiv.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\FqOV.ico
<Drive name for removable media>:\biuowiv.exe
<Drive name for removable media>:\biuowivx.exe

Network activity:

Connects to:

'ns#.##ayer1532.com':8000

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Creates and executes the following:

'%HOMEPATH%\biuowiv.exe'

Tecnologie

Termini

Formazione ed informazione

Falsi miti

Technical Information