Win32.HLLW.Autoruner2.28127

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeuale' = '%HOMEPATH%\yeuale.exe /p'

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>:\yeuale.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

Executes the following:

'%HOMEPATH%\yeuale.exe'

Modifies file system:

Creates the following files:

%HOMEPATH%\yeuale.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\yeuale.exe
<Drive name for removable media>:\autorun.inf
%HOMEPATH%\yeuale.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#.##ayer1352.com':8000

UDP:

DNS ASK ns#.##ayer1352.com

Tecnologie

Termini

Formazione ed informazione

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Technical Information