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Trojan.DownLoader30.6053

Added to the Dr.Web virus database: 2019-08-12

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following services
  • [<HKLM>\System\CurrentControlSet\Services\iajvxbkw] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\iajvxbkw] 'ImagePath' = '<SYSTEM32>\iajvxbkw\tjpijrhq.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\iajvxbkw] 'ImagePath' = '<SYSTEM32>\iajvxbkw\tjpijrhq.exe'
Malicious functions
Injects code into
the following system processes:
  • <SYSTEM32>\svchost.exe
Modifies file system
Creates the following files
  • %TEMP%\tjpijrhq.exe
  • C:\documents and settings\localservice:.repos
Moves the following files
  • from %TEMP%\tjpijrhq.exe to <SYSTEM32>\iajvxbkw\tjpijrhq.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
  • http://www.google.com/
UDP
  • DNS ASK mi##########m.mail.protection.outlook.com
  • DNS ASK al######x-vip1.prodigy.net
  • DNS ASK be###outh.net
  • DNS ASK mx.##timum.net
  • DNS ASK op###line.net
  • DNS ASK fo########ps.mail.am0.yahoodns.net
  • DNS ASK ya###groups.com
  • DNS ASK em####.chemonics.net
  • DNS ASK ch###nics.net
  • DNS ASK ve##zon.net
  • DNS ASK mx#.##rthlink.net
  • DNS ASK ea###link.net
  • DNS ASK in##.co.ph
  • DNS ASK sm##.tin.it
  • DNS ASK ti#.it
  • DNS ASK ms#####.##c.protection.outlook.com
  • DNS ASK ms#.com
  • DNS ASK na#.###.#rotection.outlook.com
  • DNS ASK google.com
  • DNS ASK li#e.cl
  • DNS ASK ge###ties.com
  • DNS ASK ya##o.de
  • DNS ASK ch##ter.net
  • DNS ASK mx.##xmail.com
  • DNS ASK mx#.#harter.net
  • DNS ASK wf###e.com.au
  • DNS ASK go##le.de
  • DNS ASK ba###est.com.au
  • DNS ASK mx#.#omcast.net
  • DNS ASK co##ast.net
  • DNS ASK ho###il.co.uk
  • DNS ASK mx#######401.gslb.pphosted.com
  • DNS ASK ch###.com.au
  • DNS ASK mx#######201.gslb.pphosted.com
  • DNS ASK ve##zon.com
  • DNS ASK mx##.#bs.open.ch
  • DNS ASK ro###.vic.gov.au
  • DNS ASK rt#.#sw.gov.au
  • DNS ASK pa###ers.com.au
  • DNS ASK al###.venus.it
  • DNS ASK 20#0.it
  • DNS ASK vi########er.fra02.hls.ttvnw.net
  • DNS ASK alt1.gmail-smtp-in.l.google.com
  • DNS ASK gm##l.com
  • DNS ASK fi#####.##rkfo-2.mailguard.com.au
  • DNS ASK wo####rce.com.au
  • DNS ASK ma##.##rkforce.com.au
  • DNS ASK ip##fo.io
  • DNS ASK my##ad.net
  • DNS ASK ub#.com
  • DNS ASK in##nd.it
  • DNS ASK cl######.us.messagelabs.com
  • DNS ASK gw####.inescop.es
  • DNS ASK in##cop.es
  • DNS ASK ho#########.olc.protection.outlook.com
  • DNS ASK ho##ail.com
  • DNS ASK mt##.##0.yahoodns.net
  • DNS ASK 19#.###.#11.95.cbl.abuseat.org
  • DNS ASK ya##o.com
  • DNS ASK sm####n.libero.it
  • DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
  • DNS ASK li##ro.it
  • DNS ASK sm##.#du.xunta.es
  • DNS ASK ed#.#unta.es
  • DNS ASK mx###.##il.am0.yahoodns.net
  • DNS ASK 19#.###.#11.95.zen.spamhaus.org
  • DNS ASK ya##o.co.uk
  • DNS ASK eu#.###.#rotection.outlook.com
  • DNS ASK 19#.###.#11.95.bl.spamcop.net
  • DNS ASK li#e.fr
  • DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
  • DNS ASK 19#.###.211.95.in-addr.arpa
  • DNS ASK aspmx.l.google.com
  • DNS ASK sm####n.inwind.it
  • DNS ASK ti###linet.it
  • DNS ASK si##m.it
  • DNS ASK sm####n.virgilio.it
  • DNS ASK vi##ilio.it
  • DNS ASK ya##o.it
  • DNS ASK ma##.###lorresearch.com.au
  • DNS ASK ta#####esearch.com.au
  • DNS ASK sm###in.iol.it
  • DNS ASK io#.it
  • DNS ASK ca####g.wa.gov.au
  • DNS ASK ma##.##ppobros.com.au
  • DNS ASK ca####ros.com.au
  • DNS ASK li#e.dk
  • DNS ASK vr######1.roads.vic.gov.au
  • DNS ASK gi#.com.au
  • DNS ASK mx.####iciodecorreo.es
  • DNS ASK af##o.es
  • DNS ASK mx.#enr.es
  • DNS ASK ep#.es
  • DNS ASK ti##ali.it
  • DNS ASK ma####1.minetad.es
  • DNS ASK to###pain.es
  • DNS ASK mx####.##il.gm0.yahoodns.net
  • DNS ASK ao#.com
  • DNS ASK et###.#ail.tiscali.it
  • DNS ASK co##n.es
  • '<DNS_SERVER>':53
Miscellaneous
Creates and executes the following
  • '<SYSTEM32>\iajvxbkw\tjpijrhq.exe' /d"<Full path to file>"
  • '<SYSTEM32>\cmd.exe' /C mkdir <SYSTEM32>\iajvxbkw\' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /C move /Y "%TEMP%\tjpijrhq.exe" <SYSTEM32>\iajvxbkw\' (with hidden window)
  • '<SYSTEM32>\sc.exe' create iajvxbkw binPath= "<SYSTEM32>\iajvxbkw\tjpijrhq.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
  • '<SYSTEM32>\sc.exe' description iajvxbkw "wifi internet conection"' (with hidden window)
  • '<SYSTEM32>\sc.exe' start iajvxbkw' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /C mkdir <SYSTEM32>\iajvxbkw\
  • '<SYSTEM32>\cmd.exe' /C move /Y "%TEMP%\tjpijrhq.exe" <SYSTEM32>\iajvxbkw\
  • '<SYSTEM32>\sc.exe' create iajvxbkw binPath= "<SYSTEM32>\iajvxbkw\tjpijrhq.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
  • '<SYSTEM32>\sc.exe' description iajvxbkw "wifi internet conection"
  • '<SYSTEM32>\sc.exe' start iajvxbkw
  • '<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.
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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