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BackDoor.Bulknet.1333

Added to the Dr.Web virus database: 2014-01-09

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wykfygqytvif' = '%HOMEPATH%\wykfygqytvif.exe'
Modifies file system :
Creates the following files:
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\8f43358f-b2f5-40b4-95c5-28712ed78832
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\Preferred
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\648f8f3d-c0f3-4cc0-ac7c-eb7591652cb5
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\aec2fc90-af20-478c-bc57-224375289ff4
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\unslp.edu[1].htm
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\mandi-man[1].htm
  • %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\ec702f375e1b12d218f67ab9ef19ca23_23ef5514-3059-436f-a4a7-4cefaab20eb1
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\traderush[1].htm
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\2abf060c-5e56-4d61-ac49-a3cdda054941
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\5a56212d-64a5-460e-b9f4-26b7e0e98129
  • %HOMEPATH%\wykfygqytvif.exe
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\9a6cb551-0445-4c98-b720-3d079a8382d1
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\7ece89ab-2b63-4db9-ad58-5128f170b763
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\c9e344c6-9bb6-4a00-b6b9-994ce5ef37c0
  • %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\e8e2f332-5fc4-4275-9839-f9dc2bdb22ff
Deletes the following files:
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\mandi-man[1].htm
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\unslp.edu[1].htm
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\traderush[1].htm
Network activity:
Connects to:
  • 'un###.edu.bo':80
  • 'ma###-man.com':80
  • 'www.tr###rush.com':80
  • 'sm##.live.com':25
  • '67.##5.160.76':25
TCP:
HTTP POST requests:
  • un###.edu.bo/
UDP:
  • DNS ASK zi####rbatului.ro
  • DNS ASK te##ole.com
  • DNS ASK sc##edel.it
  • DNS ASK ge###r.gen.tr
  • DNS ASK ko###-sa.com
  • DNS ASK wk##.net
  • DNS ASK pa###ball.be
  • DNS ASK na###gurus.com
  • DNS ASK ac##l.lt
  • DNS ASK ya###oto-sr.com
  • DNS ASK pe#c.ca
  • DNS ASK as###isk.com.sg
  • DNS ASK ez##di.com
  • DNS ASK vi##lur.by
  • DNS ASK ma###egor.co.kr
  • DNS ASK gj#.com.pl
  • DNS ASK to##x.ro
  • DNS ASK ni####ictionary.com
  • DNS ASK to###nmeuse.com
  • DNS ASK sg###nting.ca
  • DNS ASK d4###edia.com
  • DNS ASK al###wared.com
  • DNS ASK ai##.co.nz
  • DNS ASK st####ennygames.com
  • DNS ASK co##th.com
  • DNS ASK ko###hi-hp.com
  • DNS ASK ar####esajandek.hu
  • DNS ASK li####ist-uk.com
  • DNS ASK st##net.de
  • DNS ASK ag##rno.ru
  • DNS ASK te###avis.com
  • DNS ASK tr####y-works.com
  • DNS ASK le###ridica.com
  • DNS ASK ac#####oambiente.com
  • DNS ASK re###echre.com
  • DNS ASK fu###o-lab.com
  • DNS ASK st###edia.ca
  • DNS ASK e-###ukyaku.com
  • DNS ASK fl####adoubled.com
  • DNS ASK cb####nting.com.au
  • DNS ASK he###mare.nl
  • DNS ASK kv###atoff.ru
  • DNS ASK gr###web.net
  • DNS ASK eo##.net
  • DNS ASK hi##ken.com
  • DNS ASK bu####llmedia.com
  • DNS ASK re####efield.co.uk
  • DNS ASK do####ntasies.com
  • DNS ASK ro#####cintyre.com.au
  • DNS ASK sh###ales.co.uk
  • DNS ASK ph###type.com
  • DNS ASK up###on89.com
  • DNS ASK te###ra.co.jp
  • DNS ASK ca###choice.org
  • DNS ASK wl#.##uisiana.gov
  • DNS ASK ss#####ginggroup.com
  • DNS ASK ry###chi-jp.com
  • DNS ASK lo###rlookz.com
  • DNS ASK ha####ltimedia.com
  • DNS ASK ho###hd.com.br
  • DNS ASK be#####aelcenter.org
  • DNS ASK je###atz.com
  • DNS ASK ia###obal.or.id
  • DNS ASK mi####io-teatras.lt
  • DNS ASK le###riage.com
  • DNS ASK c2##du.com
  • DNS ASK pl#s.ba
  • DNS ASK tu####-saitama.com
  • DNS ASK fa#####hofamerica.com
  • DNS ASK go####luecenter.com
  • DNS ASK th#####ldsongroup.com
  • DNS ASK sp##i.org
  • DNS ASK pb##.com
  • DNS ASK re####eretreat.com
  • DNS ASK ma#####siecologia.com
  • DNS ASK sa##s.net
  • DNS ASK hp####rvices.com
  • DNS ASK xu###iao.com
  • DNS ASK no###uroya.com
  • DNS ASK th####ofhair.com
  • DNS ASK ga######onlinemagazine.com
  • DNS ASK mi###ech.net
  • DNS ASK ho##u.com
  • DNS ASK ku###ci.or.jp
  • DNS ASK fr#####ckallergy.com
  • DNS ASK bi#####sbeefjerky.com
  • DNS ASK go####rk-moossee.ch
  • DNS ASK ik##s.fr
  • DNS ASK ka####ka.vic.edu.au
  • DNS ASK pc##ds.com
  • DNS ASK ic###ain.com
  • DNS ASK ma###acorp.com
  • DNS ASK be#####rebusiness.org
  • DNS ASK at#####hnologies.com
  • DNS ASK tr###alau.com
  • DNS ASK dj###taro.com
  • DNS ASK ca#####citytuxedo.com
  • DNS ASK au##ma.it
  • DNS ASK no##-k.com
  • DNS ASK ar###2aa.org
  • DNS ASK en####odrigo.com.br
  • DNS ASK om##p.co.jp
  • DNS ASK sl##go.org
  • DNS ASK ts#.org
  • DNS ASK pi##mia.com
  • DNS ASK de####scueusa.com
  • DNS ASK cg###ngland.com
  • DNS ASK pa###enna.com
  • DNS ASK gl###otels.com
  • DNS ASK br###ndia.com
  • DNS ASK ms##ys.com
  • DNS ASK su###le.co.jp
  • DNS ASK fr###spot.co.za
  • DNS ASK av###-ime.com
  • DNS ASK ma##.#irmail.net
  • DNS ASK kr###haus.com
  • DNS ASK d-##b.net
  • DNS ASK be#####odmetalworks.com
  • DNS ASK ws#####rontheweb.com
  • DNS ASK an###ervice.com
  • DNS ASK sa####connection.ca
  • DNS ASK fl###ercorp.com
  • DNS ASK ap###farm.org
  • DNS ASK ch###scope.com
  • DNS ASK s2#.fr
  • DNS ASK ro###eli.com
  • DNS ASK ag#####des-druides.com
  • DNS ASK th######inghouseltd.co.uk
  • DNS ASK pe####sion.co.in
  • DNS ASK me#####-jacquelin.com
  • DNS ASK sm##.#ompuserve.com
  • DNS ASK e-###ami.com
  • DNS ASK my####center.com
  • DNS ASK es####-hotelier.com
  • DNS ASK ma####.us2.mcsv.net
  • DNS ASK is#####ltarim.com.tr
  • DNS ASK x-#####ommunications.de
  • DNS ASK e-###rming.com
  • DNS ASK ge####isions.com
  • DNS ASK ac#####ificrepairs.com
  • DNS ASK ch####supplies.net
  • DNS ASK to####sondesign.com
  • DNS ASK ch####ybarry.com
  • DNS ASK ib##.com.br
  • DNS ASK wo#####dhillwinery.com
  • DNS ASK sc####inpeach.com
  • DNS ASK sm##.###global.yahoo.com
  • DNS ASK sm##.#ail.yahoo.com
  • DNS ASK sm##.live.com
  • DNS ASK un###.edu.bo
  • DNS ASK ma###-man.com
  • DNS ASK www.tr###rush.com
  • DNS ASK ar#####turadigital.com
  • DNS ASK ch###eative.com
  • DNS ASK ac###nvestor.ca
  • DNS ASK lo###tic.com
  • DNS ASK fr#####high.school.nz
  • DNS ASK na###ngcw.com
  • DNS ASK mo#####-vacaciones.com
  • DNS ASK sm##.#irectcon.net
  • DNS ASK de##ille.ca
  • DNS ASK ix###ctor.com
  • DNS ASK co###rprint.nl
  • DNS ASK ru###eberg.com
  • DNS ASK hi###nwiese.de
  • DNS ASK sz##tka.com
  • DNS ASK is##h.com
  • DNS ASK so####oncorp.com
  • DNS ASK ch####atecovers.com
  • DNS ASK em###dalia.com
  • DNS ASK st##om.nl
  • DNS ASK si####etalsinc.com
  • DNS ASK au####direkt.net
  • DNS ASK ma####ntralaya.com
  • DNS ASK gc##cpa.com
  • DNS ASK na###sklep.pl
  • DNS ASK se##door.pl
  • DNS ASK as#.co.jp
  • DNS ASK un#####arthgroup.com
  • DNS ASK al####ousehotel.com
  • DNS ASK ad####ivechat.us
  • DNS ASK je###mate.co.jp
  • DNS ASK do##sf.com
  • DNS ASK vi###ria.com.pl
  • DNS ASK ch####-select.com
  • DNS ASK we####llsstl.org
  • DNS ASK me###ies.org
  • DNS ASK di##ro.se
  • DNS ASK to#####rthcare.com.au
  • DNS ASK sh#####teexpress.com
  • DNS ASK vi####agamba.com
  • DNS ASK av##ay.com
  • DNS ASK db####onents.com
  • DNS ASK cs##c.org
  • DNS ASK ba######ramsevatrust.org
  • DNS ASK th###rgery.com
  • DNS ASK ph###clubs.com
  • DNS ASK ur####aproject.com
  • DNS ASK ac###a.com.br
  • DNS ASK ce####kalip.com.tr
  • DNS ASK bo####ydesign.com
  • DNS ASK bi##imex.pl
  • DNS ASK bo#r.cz
  • DNS ASK os####-school.com
  • DNS ASK se###co-ind.com
  • DNS ASK ka###hal.com
  • DNS ASK wi#####emarketing.com
  • DNS ASK bi#####ultimedia.com
  • DNS ASK ga###marine.com
  • DNS ASK su###france.com
  • DNS ASK nd####nementiel.com
  • DNS ASK na####ecurtiss.com
  • DNS ASK or####networks.net
  • DNS ASK ur##asu.net
  • DNS ASK mo###ophoto.com
  • DNS ASK bu####ss-edge.com
  • DNS ASK co#.#ku.edu.cn
  • DNS ASK to###ipe.com
  • DNS ASK eu##sia.it
  • DNS ASK co##tney.ca
  • DNS ASK eg##.net
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.
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