Win32.HLLW.Autoruner2.13337
Added to the Dr.Web virus database:
2014-04-30
Virus description added:
2014-04-30
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Google Updater' = 'C:\z\csrss.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\LISTE CP.exe' = '%TEMP%\LISTE CP.exe:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
- '%TEMP%\svchost.exe'
- '%TEMP%\LISTE CP.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\ngd3nsch.cmdline"
Injects code into
the following system processes:
a large number of user processes.
Modifies file system :
Creates the following files:
- %TEMP%\vbc1.tmp
- %TEMP%\ngd3nsch.out
- %TEMP%\ngd3nsch.cmdline
- %TEMP%\winxvkao.exe
- %TEMP%\ngd3nsch.exe
- %TEMP%\RES2.tmp
- %TEMP%\ngd3nsch.0.vb
- %TEMP%\LISTE CP.exe
- %TEMP%\svchost.exe
- %TEMP%\s.resources
- %TEMP%\MSNPSharp.dll
- %TEMP%\0K3j35r7e.resources
- %TEMP%\icjxjf.exe
Deletes the following files:
- %TEMP%\ngd3nsch.out
- %TEMP%\ngd3nsch.cmdline
- %TEMP%\winxvkao.exe
- %TEMP%\ngd3nsch.exe
- %TEMP%\RES2.tmp
- %TEMP%\icjxjf.exe
- %TEMP%\ngd3nsch.0.vb
- %TEMP%\vbc1.tmp
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
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