Win32.HLLW.Autoruner.61811

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /Z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaauxir' = '%HOMEPATH%\zaauxir.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>:\lUtM.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\zaauxir.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\zaauxirx.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%\zaauxir.exe

Modifies file system :

Creates the following files:

%HOMEPATH%\zaauxir.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\zaauxir.exe
<Drive name for removable media>:\zaauxirx.exe
<Drive name for removable media>:\lUtM.ico
%HOMEPATH%\zaauxir.exe
<Drive name for removable media>:\autorun.inf

Network activity:

Connects to:

'ns#.##ayer1253.com':8000

UDP:

DNS ASK ns#.##ayer1253.com
'<Private IP address>':1035

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

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Technical Information