Win32.HLLW.Autoruner2.36023

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /A'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wowig' = '%HOMEPATH%\wowig.exe /I'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\iJKc.ico
<Drive name for removable media>:\wowig.exe
<Drive name for removable media>:\wowigx.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%\wowig.exe

Sets the 'hidden' attribute to the following files:

%HOMEPATH%\wowig.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\iJKc.ico
<Drive name for removable media>:\wowig.exe
<Drive name for removable media>:\wowigx.exe

Network activity:

Connects to:

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

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Creates and executes the following:

'%HOMEPATH%\wowig.exe'

Technologies

Terminology

Training and education

Myths

Technical Information