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Trojan.DownLoader29.50966

Added to the Dr.Web virus database: 2019-07-27

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following services
  • [<HKLM>\System\CurrentControlSet\Services\vrpweccl] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\vrpweccl] 'ImagePath' = '<SYSTEM32>\vrpweccl\dxzwqmwb.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\vrpweccl] 'ImagePath' = '<SYSTEM32>\vrpweccl\dxzwqmwb.exe'
Malicious functions
Injects code into
the following system processes:
  • <SYSTEM32>\svchost.exe
Modifies file system
Creates the following files
  • %TEMP%\dxzwqmwb.exe
  • C:\documents and settings\localservice:.repos
Moves the following files
  • from %TEMP%\dxzwqmwb.exe to <SYSTEM32>\vrpweccl\dxzwqmwb.exe
Deletes itself.
Network activity
Connects to
  • 'in####d.smtp.vt.edu':25
  • 'mx#.#bbsnet.se':25
  • 'mx#.###.c3s2.iphmx.com':25
  • 'li######.#lc.protection.outlook.com':25
  • 'in.###.trendmicro.com':25
  • 'a3#####04.direcpc.com':25
  • 'ma##.##ektro-fiebig.de':25
  • 'mx.##ra.co.nz':25
  • 'za###########com.mail.protection.outlook.com':25
  • 'mx#######701.gslb.pphosted.com':25
  • 'li#.#ishyes.net':25
  • 'mx######b2d01.pphosted.com':25
  • 'mx####.##il.gm0.yahoodns.net':25
  • 'aspmx.l.google.com':25
  • 're###.kasserver.com':25
  • 'go###e.co.uk':443
  • 'th#########ional-com.safesysmail.com':25
  • 'ma##.#rtikor.com':25
  • 'pa####x.above.com':25
  • 'mx#.##.smxemail.com':25
  • 'el####oelement.hr':25
  • 'w0#####d.kasserver.com':25
  • 'a.##.#ail.vresp.com':25
  • 'ho#########.olc.protection.outlook.com':25
  • 'alt1.gmail-smtp-in.l.google.com':25
  • 'ma#####.cytanet.com.cy':25
  • 'ma#######xcite.roc2.bluetie.com':25
  • 'el##########dk.mail.protection.outlook.com':25
  • '14#.#6.108.92':480
  • 'in####1.enkoping.se':25
TCP
HTTP GET requests
  • http://www.google.com/
UDP
  • DNS ASK mi##########m.mail.protection.outlook.com
  • DNS ASK mx#######701.gslb.pphosted.com
  • DNS ASK af##c.com
  • DNS ASK aspmx.l.google.com
  • DNS ASK c4###utions.net
  • DNS ASK re###.kasserver.com
  • DNS ASK el####o-euler.de
  • DNS ASK go###e.co.uk
  • DNS ASK th#########ional-com.safesysmail.com
  • DNS ASK th#####tnational.com
  • DNS ASK ma##.#rtikor.com
  • DNS ASK el####oenerji.com
  • DNS ASK pa####x.above.com
  • DNS ASK br####comercial.com
  • DNS ASK mx#.##.smxemail.com
  • DNS ASK wi##.ac.nz
  • DNS ASK el####oelement.hr
  • DNS ASK w0#####d.kasserver.com
  • DNS ASK el###roelch.de
  • DNS ASK a.##.#ail.vresp.com
  • DNS ASK ma##.vresp.com
  • DNS ASK ma#######xcite.roc2.bluetie.com
  • DNS ASK ex##te.com
  • DNS ASK el##########dk.mail.protection.outlook.com
  • DNS ASK c4#.biz
  • DNS ASK ph.#bm.com
  • DNS ASK mx######b2d01.pphosted.com
  • DNS ASK za##d.com
  • DNS ASK tv####kholm.tv4.se
  • DNS ASK in####1.enkoping.se
  • DNS ASK wg#.#nkoping.se
  • DNS ASK at###ticargo.se
  • DNS ASK w1.##syname.se
  • DNS ASK nw#.se
  • DNS ASK mx#.#bbsnet.se
  • DNS ASK sb#s.se
  • DNS ASK mx#.###.c3s2.iphmx.com
  • DNS ASK go##ti.com
  • DNS ASK li######.#lc.protection.outlook.com
  • DNS ASK in.###.trendmicro.com
  • DNS ASK li##.com
  • DNS ASK ab##cbn.com
  • DNS ASK a3#####04.direcpc.com
  • DNS ASK di###way.com
  • DNS ASK ma##.##ektro-fiebig.de
  • DNS ASK el####o-fiebig.de
  • DNS ASK mx.##ra.co.nz
  • DNS ASK xt##.co.nz
  • DNS ASK te####asaturn.co.nz
  • DNS ASK za###########com.mail.protection.outlook.com
  • DNS ASK za####lastic.com
  • DNS ASK li#.#ishyes.net
  • DNS ASK am#.#ricsson.se
  • DNS ASK el###ro.dtu.dk
  • DNS ASK se####.cingular.com
  • DNS ASK google.com
  • DNS ASK nm##.govt.nz
  • DNS ASK mx.###alsonora.com
  • DNS ASK ca###sonora.com
  • DNS ASK alt1.gmail-smtp-in.l.google.com
  • DNS ASK gm##l.com
  • DNS ASK za########bound-1.mimecast.co.za
  • DNS ASK mu##ob.com
  • DNS ASK mx#.qq.com
  • DNS ASK qq.com
  • DNS ASK mx#.#anmail.net
  • DNS ASK da##.net
  • DNS ASK ho#########.olc.protection.outlook.com
  • DNS ASK ho##ail.com
  • DNS ASK eu#.###.#rotection.outlook.com
  • DNS ASK 19#.###.#11.95.cbl.abuseat.org
  • DNS ASK ho##ail.de
  • DNS ASK mx#.##curemx.biz
  • DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
  • DNS ASK 19#.###.#11.95.zen.spamhaus.org
  • DNS ASK 19#.###.#11.95.bl.spamcop.net
  • DNS ASK nz##.mil.nz
  • DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
  • DNS ASK 19#.###.211.95.in-addr.arpa
  • DNS ASK gr####saflags.com
  • DNS ASK ma##.#ickstel.com
  • DNS ASK ub#.com
  • DNS ASK mx##.#bs.open.ch
  • DNS ASK ai###lindia.com
  • DNS ASK in####d.smtp.vt.edu
  • DNS ASK vt.edu
  • DNS ASK alt2.aspmx.l.google.com
  • DNS ASK sn##on.com
  • DNS ASK mx.###epiand.com
  • DNS ASK di###iand.com
  • DNS ASK mx#.###692-74.iphmx.com
  • DNS ASK in###tia.com
  • DNS ASK mx####.##il.gm0.yahoodns.net
  • DNS ASK ao#.com
  • DNS ASK vo###one.co.nz
  • DNS ASK re###.iqhive.com
  • DNS ASK ma#####.cytanet.com.cy
  • DNS ASK cy###et.com.cy
  • DNS ASK mx######91d01.pphosted.com
  • DNS ASK ci###lar.com
  • DNS ASK sm##.##cureserver.net
  • DNS ASK sc####monster.com
  • DNS ASK ex#####.bpbb.bigpond.com
  • DNS ASK bi###nd.net.au
  • DNS ASK sa####highlite.com
  • DNS ASK mx#######901.gslb.pphosted.com
  • DNS ASK eq###ytitle.com
  • DNS ASK mx##.mb1p.com
  • DNS ASK gb#.sv.se
Miscellaneous
Creates and executes the following
  • '<SYSTEM32>\vrpweccl\dxzwqmwb.exe' /d"<Full path to file>"
  • '<SYSTEM32>\cmd.exe' /C mkdir <SYSTEM32>\vrpweccl\' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /C move /Y "%TEMP%\dxzwqmwb.exe" <SYSTEM32>\vrpweccl\' (with hidden window)
  • '<SYSTEM32>\sc.exe' create vrpweccl binPath= "<SYSTEM32>\vrpweccl\dxzwqmwb.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
  • '<SYSTEM32>\sc.exe' description vrpweccl "wifi internet conection"' (with hidden window)
  • '<SYSTEM32>\sc.exe' start vrpweccl' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /C mkdir <SYSTEM32>\vrpweccl\
  • '<SYSTEM32>\cmd.exe' /C move /Y "%TEMP%\dxzwqmwb.exe" <SYSTEM32>\vrpweccl\
  • '<SYSTEM32>\sc.exe' create vrpweccl binPath= "<SYSTEM32>\vrpweccl\dxzwqmwb.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
  • '<SYSTEM32>\sc.exe' description vrpweccl "wifi internet conection"
  • '<SYSTEM32>\sc.exe' start vrpweccl
  • '<SYSTEM32>\svchost.exe'

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