Win32.HLLW.Autoruner1.27772

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /m'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /j'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /t'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /p'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /g'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /c'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /z'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /q'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /w'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /x'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /i'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /n'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /j'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /i'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /z'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /y'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /r'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /e'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /t'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /v'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /s'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /p'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /e'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /r'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /m'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /s'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /l'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /y'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /k'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /s'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /k'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /t'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /l'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /l'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /a'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /o'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /q'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /y'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /f'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /c'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /q'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /u'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /b'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /g'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /h'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /w'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /a'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /h'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /x'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /u'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /r'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /z'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /v'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /a'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /x'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /n'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /p'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /s'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /e'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /b'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /v'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /e'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /m'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /i'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /j'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /o'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /f'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /d'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /c'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /n'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\yaoho.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaoho' = '%HOMEPATH%\yaoho.exe /d'
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\yaoho.exe /h'

Creates the following files on removable media:

<Drive name for removable media>:\Passwords.exe
<Drive name for removable media>:\RCX3.tmp
<Drive name for removable media>:\RCX2.tmp
<Drive name for removable media>:\RCX6.tmp
<Drive name for removable media>:\RCX5.tmp
<Drive name for removable media>:\RCX4.tmp
<Drive name for removable media>:\Secret.exe
<Drive name for removable media>:\yaoho.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\Porn.exe
<Drive name for removable media>:\RCX1.tmp
<Drive name for removable media>:\Sexy.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%\yaoho.exe

Modifies file system :

Creates the following files:

%HOMEPATH%\yaoho.exe

Sets the 'hidden' attribute to the following files:

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

Deletes the following files:

<Drive name for removable media>:\Passwords.exe
<Drive name for removable media>:\Porn.exe
<Drive name for removable media>:\Sexy.exe

Network activity:

Connects to:

'ns#.##lpupdated.org':9002
'ns#.##lpupdates.net':9002
'ns#.##lpupdates.org':9002
'ns#.##lpupdated.net':9002
'ns#.##lpupdates.com':9002
'ns#.##lpupdater.net':9002
'ns#.##lpupdated.com':9002

UDP:

DNS ASK ns#.##lpupdated.org
DNS ASK ns#.##lpupdates.net
DNS ASK ns#.##lpupdates.org
DNS ASK ns#.##lpupdated.net
DNS ASK ns#.##lpupdates.com
DNS ASK ns#.##lpupdater.net
DNS ASK ns#.##lpupdated.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

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