Win32.HLLW.Autoruner2.36271

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zuicuk' = '%HOMEPATH%\zuicuk.exe /B'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\LzJ.ico
<Drive name for removable media>:\zuicuk.exe
<Drive name for removable media>:\zuicukx.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%\zuicuk.exe

Sets the 'hidden' attribute to the following files:

%HOMEPATH%\zuicuk.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\LzJ.ico
<Drive name for removable media>:\zuicuk.exe
<Drive name for removable media>:\zuicukx.exe

Network activity:

Connects to:

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

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Creates and executes the following:

'%HOMEPATH%\zuicuk.exe'

Technologies

Terminology

Training and education

Myths

Technical Information