Win32.HLLW.Autoruner2.37869

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /A'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /X'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pvviuh' = '%HOMEPATH%\pvviuh.exe /c'

Creates the following files on removable media:

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

Sets the 'hidden' attribute to the following files:

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

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%\pvviuh.exe'

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Technical Information