Win32.HLLW.Autoruner2.29132

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /X'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'huayoir' = '%HOMEPATH%\huayoir.exe /J'

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>:\cbG.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\huayoir.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\huayoirx.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%\huayoir.exe'

Modifies file system:

Creates the following files:

%HOMEPATH%\huayoir.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\huayoir.exe
<Drive name for removable media>:\huayoirx.exe
<Drive name for removable media>:\cbG.ico
%HOMEPATH%\huayoir.exe
<Drive name for removable media>:\autorun.inf

Network activity:

Connects to:

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

UDP:

DNS ASK ns#.##ayer1253.com

Tecnologie

Termini

Formazione ed informazione

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Technical Information