Win32.HLLW.Autoruner.52382

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /Z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /A'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /B'
[<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\1498880296] 'Name' = '"%TEMP%\2.tmp"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gaoto' = '%HOMEPATH%\gaoto.exe /X'

Creates the following files on removable media:

<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\utn.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\gaoto.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\gaotox.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%\poo1.exe
%HOMEPATH%\poo2.exe
%HOMEPATH%\OwjlQblTi.exe
%HOMEPATH%\gaoto.exe

Executes the following:

<SYSTEM32>\cmd.exe /c """%TEMP%\7ZSfx000.cmd"" "
<SYSTEM32>\tasklist.exe

Injects code into

the following system processes:

<SYSTEM32>\spoolsv.exe

Modifies settings of Windows Internet Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'

Modifies file system :

Creates the following files:

%WINDIR%\Temp\3.tmp
%TEMP%\1.tmp
%TEMP%\7ZSfx000.cmd
%TEMP%\Rlb..bat
%HOMEPATH%\poo1.exe
%HOMEPATH%\OwjlQblTi.exe
%HOMEPATH%\gaoto.exe
%HOMEPATH%\poo2.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\gaoto.exe
<Drive name for removable media>:\gaotox.exe
<Drive name for removable media>:\utn.ico
%HOMEPATH%\gaoto.exe
<Drive name for removable media>:\autorun.inf

Deletes the following files:

%HOMEPATH%\OwjlQblTi.exe
%HOMEPATH%\poo2.exe
%TEMP%\2.tmp
%WINDIR%\Temp\3.tmp

Deletes itself.

Network activity:

Connects to:

'bo###rspot.in':80

TCP:

HTTP POST requests:

bo###rspot.in/itscool.php?in##############################################################################################################

UDP:

DNS ASK bo###rspot.in
DNS ASK pa###poker.com
DNS ASK ma###ble.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

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Technical Information