Win32.HLLW.Autoruner1.38653

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pasub' = '%HOMEPATH%\pasub.exe /p'

Creates the following files on removable media:

<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\Brt.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\pasub.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\pasubx.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%\pasub.exe'

Modifies file system :

Creates the following files:

%HOMEPATH%\pasub.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\pasub.exe
<Drive name for removable media>:\pasubx.exe
<Drive name for removable media>:\Brt.ico
%HOMEPATH%\pasub.exe
<Drive name for removable media>:\autorun.inf

Network activity:

Connects to:

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

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

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Technical Information