To manually apply a patch or hot fix:

1. Download the critical patch from Trend Micro Download Center. Go to the Product Patch tab.
    

   Download and file transfer options:

   • Download the critical patch directly from the appliance using commands such as wget.
     Example: wget https://files.trendmicro.com/products/imsva/9.1/imsva_91_en.criticalpatch_b2090.tar.gz
   • Download the critical patch from a Windows machine and transfer it to the appliance using tools such as WinSCP or Filezilla.

    
2. Upload the file to /opt/trend/imss/patch using the command:
   cd /opt/trend/imss/patch/
3. Create a back up for /opt/trend/imss/patch/temp using the command:
   mv temp temp.bac
4. Then create a temp dir by using the command:
   mkdir temp
5. Extract the critical patch to the temp folder:
   tar -zxvf imsva_xx_xx.tar.gz -C temp

   

6. Use the command below to apply or install the critical patch.