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Trojan.Encoder.436

Added to the Dr.Web virus database: 2014-02-07

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] '*CryptoLocker' = '"<LS_APPDATA>\Fpivibovqxopnnv.exe"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'CryptoLocker' = '"<LS_APPDATA>\Fpivibovqxopnnv.exe"'
Malicious functions:
Creates and executes the following:
  • '<LS_APPDATA>\Fpivibovqxopnnv.exe' -wbc
  • '<LS_APPDATA>\Fpivibovqxopnnv.exe' "-r<Full path to virus>"
Modifies file system :
Creates the following files:
  • %TEMP%\GUV6C13.tmp
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\home[1].htm
  • %TEMP%\PRK8A9B.tmp
  • %TEMP%\QNQCB8F.tmp
  • <LS_APPDATA>\Fpivibovqxopnnv.exe
Sets the 'hidden' attribute to the following files:
  • <LS_APPDATA>\Fpivibovqxopnnv.exe
Deletes the following files:
  • %TEMP%\GUV6C13.tmp
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\home[1].htm
  • %TEMP%\QNQCB8F.tmp
  • %TEMP%\PRK8A9B.tmp
Deletes itself.
Network activity:
Connects to:
  • 'tm####kxkkmiiew.com':80
  • 'ts#####vyvvhyvc.info':80
  • 'uk####olxjvtici.net':80
  • 'ue####jdyhibptu.ru':80
  • 'hr####teweephfm.biz':80
  • 'xd####kbqmycgae.biz':80
  • 'wf####gndnpqpef.net':80
  • 'xw####sdcbpdiit.ru':80
  • 'su#####ilwmvihy.co.uk':80
  • 'yu####wqpayoinb.org':80
  • 'jm####gathjojps.org':80
  • 'ql####mcargnpso.org':80
  • 'pn####yixyhtpqo.ru':80
  • 'ri#####eucmsrpm.co.uk':80
  • 'ld####qdgieyiqr.com':80
  • 'sg#####xwulmifu.info':80
  • 'dh#####yfnbulyi.info':80
  • 'wy#####yvknaius.co.uk':80
  • 'qt####bxhqfgtgu.com':80
  • 'so####ntetkftgj.biz':80
  • 'fc####xucqgtuif.net':80
  • 'yd####lbwynpqxp.com':80
  • 'pk#####kgvmxvon.info':80
  • 'yp#####qftcdaay.co.uk':80
  • 'qg####hexdurvjr.com':80
  • 'sb####mtrsiavba.biz':80
  • 'rf####yaalagfsn.net':80
  • 'bg####fvykoghwf.net':80
  • 'cv####rfprixtf.com':80
  • 'jk####nctimfyxa.biz':80
  • 'lf####srnxanbuy.org':80
  • 'wu####dbleouhmi.ru':80
  • 'nt####wfmfauhwn.ru':80
  • 'dn####tgopqkfpp.ru':80
  • 'pb####nkbgwqwuq.biz':80
  • 'ky####spkctjicg.org':80
  • 'lq#####fjptvikm.info':80
  • 'xl#####lxlndhdr.co.uk':80
  • 'po#####ugundjie.co.uk':80
  • 'op####kyemiohyn.org':80
  • 'qk#####oxcvwaxm.info':80
  • 'cv####hqpcqxdnb.net':80
  • 'oj####bucsweeft.com':80
UDP:
  • DNS ASK uk####olxjvtici.net
  • DNS ASK tm####kxkkmiiew.com
  • DNS ASK hr####teweephfm.biz
  • DNS ASK jm####gathjojps.org
  • DNS ASK ue####jdyhibptu.ru
  • DNS ASK ts#####vyvvhyvc.info
  • DNS ASK xd####kbqmycgae.biz
  • DNS ASK wf####gndnpqpef.net
  • DNS ASK xw####sdcbpdiit.ru
  • DNS ASK su#####ilwmvihy.co.uk
  • DNS ASK yu####wqpayoinb.org
  • DNS ASK ri#####eucmsrpm.co.uk
  • DNS ASK ql####mcargnpso.org
  • DNS ASK sg#####xwulmifu.info
  • DNS ASK mb####ewibdsilv.net
  • DNS ASK ld####qdgieyiqr.com
  • DNS ASK pn####yixyhtpqo.ru
  • DNS ASK dh#####yfnbulyi.info
  • DNS ASK wy#####yvknaius.co.uk
  • DNS ASK qt####bxhqfgtgu.com
  • DNS ASK so####ntetkftgj.biz
  • DNS ASK fc####xucqgtuif.net
  • DNS ASK qg####hexdurvjr.com
  • DNS ASK pk#####kgvmxvon.info
  • DNS ASK rf####yaalagfsn.net
  • DNS ASK nt####wfmfauhwn.ru
  • DNS ASK sb####mtrsiavba.biz
  • DNS ASK yp#####qftcdaay.co.uk
  • DNS ASK bg####fvykoghwf.net
  • DNS ASK cv####rfprixtf.com
  • DNS ASK jk####nctimfyxa.biz
  • DNS ASK lf####srnxanbuy.org
  • DNS ASK wu####dbleouhmi.ru
  • DNS ASK ky####spkctjicg.org
  • DNS ASK dn####tgopqkfpp.ru
  • DNS ASK xl#####lxlndhdr.co.uk
  • DNS ASK yd####lbwynpqxp.com
  • DNS ASK lq#####fjptvikm.info
  • DNS ASK pb####nkbgwqwuq.biz
  • DNS ASK po#####ugundjie.co.uk
  • DNS ASK op####kyemiohyn.org
  • DNS ASK qk#####oxcvwaxm.info
  • DNS ASK cv####hqpcqxdnb.net
  • DNS ASK oj####bucsweeft.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

Download Dr.Web

Download by serial number

  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.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android

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