2. Upgrade (upgrade) and Updates (update)

You can download updates for THOR with “thor-util.exe” (Windows) or “thor-util” (Linux, macOS).

Running “thor-util --help” shows three options that seem to have a very similar meaning: “upgrade”, “update” and “download”.

The difference is that the “download” option downloads a full pack with all config files while the “upgrade” option fetches a full package but excludes the config files to avoid accidental overwrites of local config files (like: thor.yml, falsepositive_filters.cfg etc.).

The “update” option retrieves only the newest signature pack (not the program files).

Option

Description

upgrade

Get new program files and signatures

update

Get new signatures

download

Get new program files, signatures and config files

If you have a full program package present, you should use the “upgrade” option.

Every other option has its own help. You can see the help of each option with

thor-util *option* --help
THOR Util Upgrade Help

THOR-util Upgrade Help

The following two examples show different upgrade methods.

thor-util.exe upgrade
thor-util.exe upgrade -a https://proxy.company.net:8080
thor-util.exe upgrade -a https://proxy.company.net:8080 -n dom\\user -p password
thor-util.exe upgrade -a https://proxy.local:8080 --ntlm -n dom\\user -p password

2.1. THOR TechPreview Version

To upgrade your current version to the TechPreview version, use the following command:

thor-util.exe upgrade --techpreview

You can find more information on the TechPreview version here.

2.2. Update Locations

When using the full version of THOR, the following servers are used as update mirrors and should be accessible via HTTPS:

update1.nextron-systems.com
update2.nextron-systems.com

When using THOR Lite, the following server is used instead and should be accessible:

update-lite.nextron-systems.com

2.3. SigDev Signatures

Usually it takes our internal testing 1-2 days to verify the quality of new rules. In rare cases in which a new and severe threat has been discovered it could make sense to use the newest and untested signatures that are still in our testing process. (e.g. new vulnerability and public proof-of-concept code)

To retrieve the newest and untested signatures you can use the thor-util.exe update --sigdev flag.

To reset the signature set to the latest stable version use thor-util.exe update --force. (retrieve the stable set and enforce the download even if the current set is newer)

2.4. Update Server Information

You can get information on the available update packages on this site:

https://update1.nextron-systems.com/info.php

Update server information

Update server information