Win32.HLLW.Autoruner.57148

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'biabat' = '%HOMEPATH%\biabat.exe /O'

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>:\biabat.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%\biabat.exe

Modifies file system :

Creates the following files:

%HOMEPATH%\biabat.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\biabat.exe
<Drive name for removable media>:\autorun.inf
%HOMEPATH%\biabat.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#.##ayer1532.com':8000

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

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Technical Information