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Win32.HLLW.Autoruner2.14356

Added to the Dr.Web virus database: 2014-05-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'jaitoo' = '%HOMEPATH%\jaitoo.exe /T'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Creates the following files on removable media:
  • <Drive name for removable media>:\Passwords.exe
  • <Drive name for removable media>:\RCX5.tmp
  • <Drive name for removable media>:\RCX4.tmp
  • <Drive name for removable media>:\RCX8.tmp
  • <Drive name for removable media>:\RCX7.tmp
  • <Drive name for removable media>:\RCX6.tmp
  • <Drive name for removable media>:\Secret.exe
  • <Drive name for removable media>:\jaitoo.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Porn.exe
  • <Drive name for removable media>:\RCX3.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%\jaitoo.exe'
  • '%TEMP%\svchost.exe'
  • '%TEMP%\BUDGET.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%\qu8lci-x.cmdline"
Modifies file system :
Creates the following files:
  • %TEMP%\qu8lci-x.out
  • %TEMP%\qu8lci-x.cmdline
  • %TEMP%\qu8lci-x.0.vb
  • %TEMP%\qu8lci-x.exe
  • %TEMP%\RES2.tmp
  • %TEMP%\vbc1.tmp
  • %TEMP%\svchost.exe
  • %TEMP%\BUDGET.exe
  • %TEMP%\KZ.resources
  • %TEMP%\MSNPSharp.dll
  • %TEMP%\5x5D8FXe3.resources
  • %HOMEPATH%\jaitoo.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\jaitoo.exe
  • <Drive name for removable media>:\autorun.inf
  • %HOMEPATH%\jaitoo.exe
Deletes the following files:
  • <Drive name for removable media>:\Sexy.exe
  • %TEMP%\qu8lci-x.0.vb
  • <Drive name for removable media>:\Passwords.exe
  • <Drive name for removable media>:\Porn.exe
  • %TEMP%\qu8lci-x.out
  • %TEMP%\vbc1.tmp
  • %TEMP%\RES2.tmp
  • %TEMP%\qu8lci-x.cmdline
  • %TEMP%\qu8lci-x.exe
Network activity:
Connects to:
  • 'ns#.###nsearcher.net':8000
  • '17#.#3.169.14':80
UDP:
  • DNS ASK ns#.###nsearcher.net
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'

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