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Trojan.Hosts.4092

Added to the Dr.Web virus database: 2013-03-03

Virus description added:

Technical Information

Malicious functions:
Creates and executes the following:
  • %TEMP%\ocr1.tmp\bin\ruby.exe "%TEMP%\ocr1.tmp\src\ddoser_crack_numba_two.rb"
Executes the following:
  • <SYSTEM32>\ipconfig.exe /flushdns
Modifies file system :
Creates the following files:
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\Win32API.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\tmpdir.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\tempfile.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\fileutils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpversion.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\delegate.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\etc.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\server.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\accesslog.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\htmlutils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\config.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httputils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\utils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\log.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\ssl.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\x509.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\fcntl.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\digest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\pkcs7.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\buffering.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\ubygems.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\compat.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\version.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\gem_openssl.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\security.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\custom_require.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\cookie.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\htpasswd.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\htdigest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\htgroup.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\userdb.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest\md5.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest\sha1.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\digestauth.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\win32\registry.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\win32\resolv.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\resolv.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\securerandom.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\jcode.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\filehandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\cgihandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\strscan.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\abstract.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpstatus.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httprequest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpresponse.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpserver.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\authenticator.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\basicauth.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\erb.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\erbhandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\prochandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\ftp.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\http.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\https.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\generic.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\timeout.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\net\protocol.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\common.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\net\http.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\stringio.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\error.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\ldap.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\ldaps.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\mailto.rb
  • %TEMP%\ocr1.tmp\bin\SSLEAY32.dll
  • %TEMP%\ocr1.tmp\bin\LIBEAY32.dll
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\enumerator.so
  • %TEMP%\ocr1.tmp\bin\zlib1.dll
  • %TEMP%\ocr1.tmp\src\ddoser_crack_numba_two.rb
  • %TEMP%\ocr1.tmp\bin\ruby.exe
  • %TEMP%\ocr1.tmp\bin\msvcrt-ruby18.dll
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rbconfig\datadir.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\user_interaction.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\socket.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\thread.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\rbconfig.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\rubygems_version.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\thread.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\syck.so
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\digest\sha2.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\forwardable.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\parsedate.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest\sha2.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\digest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\digest\sha2.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\openssl.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\bn.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\cipher.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\specification.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\time.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\source_index.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\version.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\stream.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\constants.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\rational.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\tag.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\ypath.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\basenode.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\syck.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\i386-msvcrt\zlib.so
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\remote_fetcher.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\types.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\date\format.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\date.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\rubytypes.rb
Deletes the following files:
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\common.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\ftp.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\generic.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\userdb.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\htdigest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\htgroup.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\htpasswd.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\mailto.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\bn.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\buffering.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\ldaps.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\http.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\https.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri\ldap.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\utils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\version.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\abstract.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\server.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httputils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpversion.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\log.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\authenticator.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\basicauth.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth\digestauth.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\prochandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\cgihandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\erbhandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet\filehandler.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\cipher.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest\md5.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest\sha1.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest\sha2.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\Win32API.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\strscan.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\syck.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\thread.so
  • %TEMP%\ocr1.tmp\bin\ruby.exe
  • %TEMP%\ocr1.tmp\bin\SSLEAY32.dll
  • %TEMP%\ocr1.tmp\bin\zlib1.dll
  • %TEMP%\ocr1.tmp\bin\msvcrt-ruby18.dll
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\digest\sha2.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\date\format.rb
  • %TEMP%\ocr1.tmp\bin\LIBEAY32.dll
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\net\http.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\net\protocol.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\digest.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\x509.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\digest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\pkcs7.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl\ssl.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\rbconfig.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\socket.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\stringio.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\openssl.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\enumerator.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\etc.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\i386-mswin32\fcntl.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\erb.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\fileutils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\forwardable.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\digest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\i386-msvcrt\zlib.so
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\date.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\delegate.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\resolv.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\securerandom.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\tempfile.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\rational.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\jcode.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\openssl.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\parsedate.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\gem_openssl.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\remote_fetcher.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\rubygems_version.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\custom_require.rb
  • %TEMP%\ocr1.tmp\src\ddoser_crack_numba_two.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\ubygems.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\version.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\digest\sha2.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rbconfig\datadir.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\user_interaction.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\security.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\source_index.rb
  • %TEMP%\ocr1.tmp\lib\ruby\site_ruby\1.8\rubygems\specification.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\thread.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\compat.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\config.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\cookie.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\accesslog.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\ypath.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\win32\registry.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\win32\resolv.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpserver.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpservlet.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpstatus.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpresponse.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\htmlutils.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httpauth.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick\httprequest.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\webrick.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\basenode.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\uri.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\time.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\timeout.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\tmpdir.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\syck.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\tag.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\types.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\stream.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\constants.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\error.rb
  • %TEMP%\ocr1.tmp\lib\ruby\1.8\yaml\rubytypes.rb
Modifies the HOSTS file.
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
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