Technical Information
To ensure autorun and distribution
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\punimzai] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\punimzai] 'ImagePath' = '%WINDIR%\SysWOW64\punimzai\jmuusqud.exe /d"<Full path to file>"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\punimzai] 'ImagePath' = '%WINDIR%\SysWOW64\punimzai\jmuusqud.exe'
Malicious functions
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%\jmuusqud.exe
Moves the following files
- from %TEMP%\jmuusqud.exe to %WINDIR%\syswow64\punimzai\jmuusqud.exe
Deletes itself.
Network activity
Connects to
- '43.#31.4.7':443
UDP
- DNS ASK ya##o.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\punimzai\jmuusqud.exe' /d"<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\punimzai\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\jmuusqud.exe" %WINDIR%\SysWOW64\punimzai\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create punimzai binPath= "%WINDIR%\SysWOW64\punimzai\jmuusqud.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description punimzai "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start punimzai' (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\punimzai\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\jmuusqud.exe" %WINDIR%\SysWOW64\punimzai\
- '%WINDIR%\syswow64\sc.exe' create punimzai binPath= "%WINDIR%\SysWOW64\punimzai\jmuusqud.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description punimzai "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start punimzai
- '%WINDIR%\syswow64\svchost.exe'
