Win32.HLLW.Autoruner2.28198

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'poook' = '%HOMEPATH%\poook.exe /z'

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>:\TYC.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\poook.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\poookx.exe

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Executes the following:

'%HOMEPATH%\poook.exe'

Modifies file system:

Creates the following files:

%HOMEPATH%\poook.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\poook.exe
<Drive name for removable media>:\poookx.exe
<Drive name for removable media>:\TYC.ico
%HOMEPATH%\poook.exe
<Drive name for removable media>:\autorun.inf

Network activity:

Connects to:

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

UDP:

DNS ASK ns#.##ayer1532.com

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Technical Information