Win32.HLLW.Autoruner2.36163

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /Z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /X'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /A'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kiumaa' = '%HOMEPATH%\kiumaa.exe /y'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\kiumaa.exe
<Drive name for removable media>:\Secret.exe
<Drive name for removable media>:\Sexy.exe
<Drive name for removable media>:\RCX1.tmp
<Drive name for removable media>:\Porn.exe
<Drive name for removable media>:\RCX2.tmp
<Drive name for removable media>:\RCX3.tmp
<Drive name for removable media>:\Passwords.exe
<Drive name for removable media>:\RCX4.tmp
<Drive name for removable media>:\RCX5.tmp
<Drive name for removable media>:\RCX6.tmp

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%\kiumaa.exe

Sets the 'hidden' attribute to the following files:

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

Deletes the following files:

<Drive name for removable media>:\Sexy.exe
<Drive name for removable media>:\Porn.exe
<Drive name for removable media>:\Passwords.exe

Substitutes the following files:

<Drive name for removable media>:\Sexy.exe
<Drive name for removable media>:\Porn.exe
<Drive name for removable media>:\Passwords.exe

Network activity:

Connects to:

'ns#.##ayer1352.com':8000

UDP:

DNS ASK ns#.##ayer1352.com

Miscellaneous:

Creates and executes the following:

'%HOMEPATH%\kiumaa.exe'

Technologies

Terminology

Training and education

Myths

Technical Information