Win32.HLLW.Autoruner2.36123

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /X'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xwmuy' = '%HOMEPATH%\xwmuy.exe /T'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\CuQs.ico
<Drive name for removable media>:\xwmuy.exe
<Drive name for removable media>:\xwmuyx.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\Video.lnk

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%\xwmuy.exe

Sets the 'hidden' attribute to the following files:

%HOMEPATH%\xwmuy.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\CuQs.ico
<Drive name for removable media>:\xwmuy.exe
<Drive name for removable media>:\xwmuyx.exe

Network activity:

Connects to:

'ns#.##ayer1532.com':8000

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Creates and executes the following:

'%HOMEPATH%\xwmuy.exe'

Technologies

Terminology

Training and education

Myths

Technical Information