Win32.HLLW.Autoruner2.38132

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /Z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /X'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yaeiwu' = '%HOMEPATH%\yaeiwu.exe /F'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\yaeiwu.exe
<Drive name for removable media>:\Secret.exe
<Drive name for removable media>:\Sexy.exe
<Drive name for removable media>:\RCX1.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%\yaeiwu.exe

Sets the 'hidden' attribute to the following files:

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

Deletes the following files:

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

Substitutes the following files:

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

Network activity:

Connects to:

'ns#.##ayer1352.com':8000

UDP:

DNS ASK ns#.##ayer1352.com

Miscellaneous:

Creates and executes the following:

'%HOMEPATH%\yaeiwu.exe'

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Technical Information