Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\SYSTEM\CurrentControlSet\Control\Print\Monitors\RunDllExe] 'Driver' = '%WINDIR%\Logs\RunDllExe.dll'
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\Spooler] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\KuGouMusic] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\KuGouMusic] 'ImagePath' = '%WINDIR%\Help\Winlogon.exe'
- [<HKLM>\System\CurrentControlSet\Services\PolicyAgent] 'Start' = '00000002'
Creates the following services
- 'KuGouMusic' %WINDIR%\Help\Winlogon.exe
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
- %WINDIR%\logs\rundllexe.exe
- %WINDIR%\logs\rundllexe
- %WINDIR%\logs\rundllexe.dll
- %WINDIR%\mpmgsvc.dll
- %WINDIR%\logs\rundllexe_new.dll
- %WINDIR%\logs\rundllexe_new
- <Current directory>\x64.exe
- %WINDIR%\help\winlogon.exe
- %WINDIR%\help\active_desktop_render.dll
- %WINDIR%\cursors\wudfhosts.exe
- %WINDIR%\help\active_desktop_render_new.dll
Deletes the following files
- %WINDIR%\logs\rundllexe_new.dll
- %WINDIR%\logs\rundllexe_new
- %WINDIR%\help\active_desktop_render.dll
Moves the following files
- from <Current directory>\x64.exe to %TEMP%\9876
Substitutes the following files
- %WINDIR%\help\active_desktop_render.dll
Network activity
TCP
HTTP GET requests
- http://wm#.#i7i.com/11.exe
- http://22##h.com/Update.txt
UDP
- DNS ASK wm#.#i7i.com
- DNS ASK ss#.#i7i.com
- DNS ASK 22##h.com
- DNS ASK po##.#sa-138.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\logs\rundllexe.exe'
- '%WINDIR%\help\winlogon.exe'
- '<Current directory>\x64.exe'
- '%WINDIR%\cursors\wudfhosts.exe' -o stratum+tcp://pool.usa-138.com:80 -u 4B7yFmYw2qvEtWZDDnZVeY16HHpwTtuYBg6EMn5xdDbM3ggSEnQFDWDHH6cqdEYaPx4iQvAwLNu8NLc21QxDU84GGxZEY7S -p x
- '%WINDIR%\syswow64\netsh.exe' ipsec static set policy name=Block assign=y' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add rule name=Rule1 policy=Block filterlist=Filter1 filteraction=FilteraAtion1' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filteraction name=FilteraAtion1 action=block' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=445 protocol=UDP' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=139 protocol=UDP' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=445 protocol=TCP' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=135 protocol=TCP' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=139 protocol=TCP' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filterlist name=Filter1' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add policy name=Block' (with hidden window)
- '<Current directory>\x64.exe' ' (with hidden window)
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\Fonts\*.exe /e /d system' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=135 protocol=UDP' (with hidden window)
- '%WINDIR%\cursors\wudfhosts.exe' -o stratum+tcp://pool.usa-138.com:80 -u 4B7yFmYw2qvEtWZDDnZVeY16HHpwTtuYBg6EMn5xdDbM3ggSEnQFDWDHH6cqdEYaPx4iQvAwLNu8NLc21QxDU84GGxZEY7S -p x' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\cacls.exe' %WINDIR%\Fonts\*.exe /e /d system
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\netsh.exe' ipsec static add policy name=Block
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filterlist name=Filter1
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=135 protocol=TCP
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=135 protocol=UDP
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=139 protocol=TCP
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=139 protocol=UDP
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=445 protocol=TCP
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=445 protocol=UDP
- '%WINDIR%\syswow64\netsh.exe' ipsec static add filteraction name=FilteraAtion1 action=block
- '%WINDIR%\syswow64\netsh.exe' ipsec static add rule name=Rule1 policy=Block filterlist=Filter1 filteraction=FilteraAtion1
- '%WINDIR%\syswow64\netsh.exe' ipsec static set policy name=Block assign=y
