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Trojan.DownLoader23.7921

Added to the Dr.Web virus database: 2016-11-04

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Information Audio Notification Call' = 'C:\zhytmbr7zpwfj\ivgogljngbulr.exe'
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\User Files Alerts Problem] 'ImagePath' = 'C:\zhytmbr7zpwfj\ivgogljngbulr.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\User Files Alerts Problem] 'Start' = '00000002'
Malicious functions:
Executes the following:
  • 'C:\zhytmbr7zpwfj\tv1jgdcjdkqb.exe' "c:\zhytmbr7zpwfj\ivgogljngbulr.exe"
  • 'C:\zhytmbr7zpwfj\ivgogljngbulr.exe'
  • 'C:\zhytmbr7zpwfj\zdbchj35vtovesem95n.exe'
Modifies file system:
Creates the following files:
  • C:\zhytmbr7zpwfj\ivgogljngbulr.exe
  • C:\zhytmbr7zpwfj\tv1jgdcjdkqb.exe
  • C:\zhytmbr7zpwfj\htwmeih
  • %WINDIR%\zhytmbr7zpwfj\epgryqmzob
  • C:\zhytmbr7zpwfj\epgryqmzob
  • C:\zhytmbr7zpwfj\zdbchj35vtovesem95n.exe
Sets the 'hidden' attribute to the following files:
  • C:\zhytmbr7zpwfj\tv1jgdcjdkqb.exe
  • C:\zhytmbr7zpwfj\ivgogljngbulr.exe
Deletes the following files:
  • C:\zhytmbr7zpwfj\zdbchj35vtovesem95n.exe
  • %WINDIR%\zhytmbr7zpwfj\epgryqmzob
Network activity:
Connects to:
  • 'ca#####natennyson.ru':80
  • 'pi##asia.cn':80
  • 'ca#####netennyson.net':80
  • 'ca#####natennyson.net':80
  • 'ye####gdongwu.cn':80
  • 'sc#####epuzzlechess.org':80
  • 'do##bate.cn':80
  • 'ag#####anabolics.com':80
  • 'ca#####eeitinthecup.org':80
  • 'an#####teernestine.net':80
  • 'st#####iechastity.net':80
  • 'an#####temillicent.net':80
  • 'ma#####netennyson.net':80
  • 'st#####iemillicent.net':80
  • 'st#####ietennyson.net':80
  • 'an#####techastity.net':80
  • 'ma#####neernestine.net':80
  • 'ma#####nechastity.ru':80
  • 'ma#####nechastity.net':80
  • 'pr####anabolikov.ru':80
  • 'na##top.ru':80
  • 'ga#####yundongyuan.cn':80
  • 'gu##155.cn':80
  • 'si###ypeas.net':80
  • 'ga####liongrass.net':80
  • 'cl####portsmen.com':80
  • 'sc####ainbow.net':80
  • 'to###tosales.ru':80
  • 'ka#######ayajivayapriroda.ru':80
  • 'so####ryducks.com':80
  • 'sp##tnav.ru':80
  • 'bu####rmansion.com':80
  • 'ha####nhalflion.net':80
  • 'un###lgrain.org':80
  • 'pr##card.ru':80
  • 'gr###factory.cn':80
  • 'ch####isportsmen.ru':80
  • 'ta#####pielenreiten.org':80
  • 'cl#####ortswomen.com':80
TCP:
HTTP GET requests:
  • http://ca#####natennyson.ru/index.php
  • http://pi##asia.cn/index.php
  • http://ca#####netennyson.net/index.php
  • http://ca#####natennyson.net/index.php
  • http://ye####gdongwu.cn/index.php
  • http://sc#####epuzzlechess.org/index.php
  • http://do##bate.cn/index.php
  • http://ag#####anabolics.com/index.php
  • http://ca#####eeitinthecup.org/index.php
  • http://an#####teernestine.net/index.php
  • http://st#####iechastity.net/index.php
  • http://an#####temillicent.net/index.php
  • http://ma#####netennyson.net/index.php
  • http://st#####iemillicent.net/index.php
  • http://st#####ietennyson.net/index.php
  • http://an#####techastity.net/index.php
  • http://ma#####neernestine.net/index.php
  • http://ma#####nechastity.ru/index.php
  • http://ma#####nechastity.net/index.php
  • http://pr####anabolikov.ru/index.php
  • http://na##top.ru/index.php
  • http://ga#####yundongyuan.cn/index.php
  • http://gu##155.cn/index.php
  • http://si###ypeas.net/index.php
  • http://ga####liongrass.net/index.php
  • http://cl####portsmen.com/index.php
  • http://sc####ainbow.net/index.php
  • http://to###tosales.ru/index.php
  • http://ka#######ayajivayapriroda.ru/index.php
  • http://so####ryducks.com/index.php
  • http://sp##tnav.ru/index.php
  • http://bu####rmansion.com/index.php
  • http://ha####nhalflion.net/index.php
  • http://un###lgrain.org/index.php
  • http://pr##card.ru/index.php
  • http://gr###factory.cn/index.php
  • http://ch####isportsmen.ru/index.php
  • http://ta#####pielenreiten.org/index.php
  • http://cl#####ortswomen.com/index.php
UDP:
  • DNS ASK ca#####neanderson.net
  • DNS ASK ca#####neanderson.ru
  • DNS ASK ma#####nebernadine.net
  • DNS ASK an#####tebernadine.net
  • DNS ASK ca#####naanderson.net
  • DNS ASK ca#####necharisma.net
  • DNS ASK ca#####nacharisma.net
  • DNS ASK ca#####neanastacia.net
  • DNS ASK ca#####naanastacia.net
  • DNS ASK an#####techarisma.net
  • DNS ASK ch#####tebernadine.net
  • DNS ASK ma#####neanderson.net
  • DNS ASK st#####iebernadine.net
  • DNS ASK st#####iebernadine.ru
  • DNS ASK an#####teanderson.net
  • DNS ASK an#####teanastacia.ru
  • DNS ASK ma#####necharisma.net
  • DNS ASK ma#####neanastacia.net
  • DNS ASK an#####teanastacia.net
  • DNS ASK ca#####nacharisma.ru
  • DNS ASK ca#####raanderson.net
  • DNS ASK kr#####heranderson.net
  • DNS ASK ki#####eebernadine.net
  • DNS ASK ma#####ianbernadine.ru
  • DNS ASK ca#####raanastacia.net
  • DNS ASK ca#####racharisma.ru
  • DNS ASK kr#####hercharisma.net
  • DNS ASK kr#####heranastacia.net
  • DNS ASK ca#####racharisma.net
  • DNS ASK ma#####ianbernadine.net
  • DNS ASK ki#####eeanderson.net
  • DNS ASK ma#####iananderson.net
  • DNS ASK ca#####nebernadine.net
  • DNS ASK ca#####nabernadine.net
  • DNS ASK ki#####eeanastacia.net
  • DNS ASK ma#####iancharisma.net
  • DNS ASK ki#####eecharisma.net
  • DNS ASK ki#####eeanastacia.ru
  • DNS ASK ma#####iananastacia.net
  • DNS ASK ch#####techarisma.net
  • DNS ASK ma#####kebernadine.net
  • DNS ASK ge#####veanderson.net
  • DNS ASK ze#####ahcharisma.net
  • DNS ASK ze#####ahcharisma.ru
  • DNS ASK ze#####ahbernadine.net
  • DNS ASK ge#####veanastacia.ru
  • DNS ASK je#####neanastacia.net
  • DNS ASK je#####neanderson.net
  • DNS ASK ge#####veanastacia.net
  • DNS ASK ma#####kecharisma.net
  • DNS ASK ca######abrassington.net
  • DNS ASK kr######erbrassington.net
  • DNS ASK ca#####raecclestone.net
  • DNS ASK kr######erecclestone.net
  • DNS ASK ma#####keanderson.net
  • DNS ASK ma#####keanastacia.net
  • DNS ASK ze#####ahanastacia.net
  • DNS ASK ma#####keanderson.ru
  • DNS ASK ze#####ahanderson.net
  • DNS ASK ge#####vecharisma.net
  • DNS ASK ki#####ynbernadine.net
  • DNS ASK st#####ieanderson.net
  • DNS ASK gl#####lecharisma.ru
  • DNS ASK gl#####lebernadine.net
  • DNS ASK ch#####teanderson.net
  • DNS ASK ch#####teanastacia.net
  • DNS ASK st#####iecharisma.net
  • DNS ASK ch#####teanderson.ru
  • DNS ASK st#####ieanastacia.net
  • DNS ASK ki#####yncharisma.net
  • DNS ASK je#####nebernadine.ru
  • DNS ASK je#####nebernadine.net
  • DNS ASK je#####necharisma.net
  • DNS ASK ge#####vebernadine.net
  • DNS ASK gl#####leanderson.net
  • DNS ASK ki#####ynanastacia.net
  • DNS ASK gl#####lecharisma.net
  • DNS ASK ki#####ynanderson.net
  • DNS ASK gl#####leanastacia.net
  • DNS ASK ca#####natennyson.ru
  • DNS ASK pi##asia.cn
  • DNS ASK ca#####netennyson.net
  • DNS ASK ca#####natennyson.net
  • DNS ASK ye####gdongwu.cn
  • DNS ASK sc#####epuzzlechess.org
  • DNS ASK do##bate.cn
  • DNS ASK ag#####anabolics.com
  • DNS ASK ca#####eeitinthecup.org
  • DNS ASK an#####teernestine.net
  • DNS ASK st#####iechastity.net
  • DNS ASK an#####temillicent.net
  • DNS ASK ma#####netennyson.net
  • DNS ASK st#####iemillicent.net
  • DNS ASK st#####ietennyson.net
  • DNS ASK an#####techastity.net
  • DNS ASK ma#####neernestine.net
  • DNS ASK ma#####nechastity.ru
  • DNS ASK ma#####nechastity.net
  • DNS ASK pr####anabolikov.ru
  • DNS ASK na##top.ru
  • DNS ASK ga#####yundongyuan.cn
  • DNS ASK gu##155.cn
  • DNS ASK si###ypeas.net
  • DNS ASK ga####liongrass.net
  • DNS ASK cl####portsmen.com
  • DNS ASK sc####ainbow.net
  • DNS ASK to###tosales.ru
  • DNS ASK ka#######ayajivayapriroda.ru
  • DNS ASK so####ryducks.com
  • DNS ASK sp##tnav.ru
  • DNS ASK bu####rmansion.com
  • DNS ASK ha####nhalflion.net
  • DNS ASK un###lgrain.org
  • DNS ASK pr##card.ru
  • DNS ASK gr###factory.cn
  • DNS ASK ch####isportsmen.ru
  • DNS ASK ta#####pielenreiten.org
  • DNS ASK cl#####ortswomen.com
  • DNS ASK gl#####lemillicent.net
  • DNS ASK ge#####vetennyson.net
  • DNS ASK ki#####ynernestine.net
  • DNS ASK ma#####keernestine.ru
  • DNS ASK ze#####ahernestine.net
  • DNS ASK gl#####letennyson.net
  • DNS ASK ge#####vechastity.net
  • DNS ASK gl#####letennyson.ru
  • DNS ASK ki#####ynchastity.ru
  • DNS ASK je#####netennyson.net
  • DNS ASK ma#####keernestine.net
  • DNS ASK ma#####ketennyson.net
  • DNS ASK ze#####ahtennyson.net
  • DNS ASK ca#####rabernadine.net
  • DNS ASK kr#####herbernadine.net
  • DNS ASK ze#####ahtennyson.ru
  • DNS ASK ma#####kechastity.net
  • DNS ASK ze#####ahchastity.net
  • DNS ASK ma#####kemillicent.net
  • DNS ASK ze#####ahmillicent.net
  • DNS ASK gl#####leernestine.net
  • DNS ASK st#####ieernestine.net
  • DNS ASK ma#####nemillicent.net
  • DNS ASK je#####nechastity.net
  • DNS ASK je#####nemillicent.ru
  • DNS ASK ch#####temillicent.net
  • DNS ASK ge#####vemillicent.net
  • DNS ASK st#####iemillicent.ru
  • DNS ASK gl#####lechastity.net
  • DNS ASK ch#####tetennyson.net
  • DNS ASK je#####neernestine.net
  • DNS ASK ch#####techastity.net
  • DNS ASK ki#####ynchastity.net
  • DNS ASK an#####tetennyson.net
  • DNS ASK ch#####teernestine.net
  • DNS ASK ge#####veernestine.net
  • DNS ASK je#####nemillicent.net
  • DNS ASK ch#####teernestine.ru
  • DNS ASK ki#####ynmillicent.net
  • DNS ASK ki#####yntennyson.net

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.
Download Dr.Web

Download by serial number

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