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Win32.HLLW.Autoruner1.36314
Added to the Dr.Web virus database:
2013-05-04
Virus description added:
2014-10-16
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ctfmon.exe' = '%ALLUSERSPROFILE%\Application Data\rundll32.exe %ALLUSERSPROFILE%\Application Data\to7jm4.dat,FG00'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\msconfig.lnk
Malicious functions:
Creates and executes the following:
'%ALLUSERSPROFILE%\Application Data\rundll32.exe' Data\rundll32.exe %ALLUSERSPROFILE%\Application Data\to7jm4.dat,FG03
'%ALLUSERSPROFILE%\Application Data\rundll32.exe' Data\rundll32.exe %ALLUSERSPROFILE%\Application Data\to7jm4.dat,FG04
'%ALLUSERSPROFILE%\Application Data\rundll32.exe' Data\rundll32.exe %ALLUSERSPROFILE%\Application Data\to7jm4.dat,FG06
'%ALLUSERSPROFILE%\Application Data\rundll32.exe' Data\rundll32.exe %ALLUSERSPROFILE%\Application Data\to7jm4.dat,FG00
'%ALLUSERSPROFILE%\Application Data\rundll32.exe' Data\rundll32.exe %ALLUSERSPROFILE%\Application Data\to7jm4.dat,FG01
'%ALLUSERSPROFILE%\Application Data\rundll32.exe' Data\rundll32.exe %ALLUSERSPROFILE%\Application Data\to7jm4.dat,FG02
Modifies settings of Windows Internet Explorer:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1609' = '00000000'
Modifies file system :
Creates the following files:
%ALLUSERSPROFILE%\Application Data\4mj7ot.pad
%ALLUSERSPROFILE%\Application Data\4mj7ot.js
%ALLUSERSPROFILE%\Application Data\rundll32.exe
%ALLUSERSPROFILE%\Application Data\to7jm4.dat
Miscellaneous:
Searches for the following windows:
ClassName: 'WMP9DeskBand' WindowName: 'WMP9DeskBand'
ClassName: 'ReBarWindow32' WindowName: ''
ClassName: 'Type32_Main_Window' WindowName: ''
ClassName: '\MSITPro::EventQueue' WindowName: ''
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: '' WindowName: ''
ClassName: 'Indicator' WindowName: ''
ClassName: 'MS_WebcheckMonitor' WindowName: ''
ClassName: 'MS_AutodialMonitor' WindowName: ''
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