ATLauncher - Modpack launcher for Minecraft
Welcome to the ATLauncher website. This is the main point of contact to download ATLauncher, get information about ATLauncher and the packs in it as well as get some help.
ATLauncher is a simple and easy to use Minecraft Launcher which contains 154 modpacks for you to choose from, as well as the ability to browse and install packs from other platforms including CurseForge, Modrinth and Technic.
So why not take a look at the different packs that are available or just download ATLauncher and give a try yourself. If you're still unsure about us, then visit our about page to get a list of features.
Aug 4, 2023 - Serialization Is Bad - RCE in 1.7/1.12
Unfortunately there is another exploit going around the modded Minecraft community at the moment.
This is an RCE which allows bad actors to run code remotely on your computer when connected on the same server as them.
The scope at the moment seems to mostly affect mods on 1.7 and 1.12 but may also occur on other Minecraft versions, there is still work going on to find a full list of mods and affected versions. If you play singleplayer only you don't have anything to worry about, only if you play online on public servers.
Due to the nature of this being a remote code execution exploit, any attacker on the same server as you could've run any code on your computer, so as such there's no way to tell if you've been affected or what code was run.
The best course of action currently if you play older modpacks on 1.7/1.12 is to simply not join any public servers unprotected and to add this mod to your instances to protect yourself from the exploit.
More information about the exploit and affected mods and solutions can be found at https://github.com/dogboy21/serializationisbad.
There is a thread in our Discord if you have any questions.
NOTE: We posted this on our Discord when it happened, but forgot to post to our News feed, so if you already got the ping from our Discord about this issue, this is the same issue, not a new one.
Jun 9, 2023 - Update regarding malware incident
The situation seems to have relaxed a bit, the details on the malware and what it does is known (again if you're interested take a look at this GitHub repo) and we have tools available to detect if you're infected:
- CurseForge Infected mods detection tool
Both these tools will detect for any traces of the malware on your PC or within your modded Minecraft installations (be sure to scan your entire drives, or at least your user folder and any folders where you run Minecraft from).
Several platforms have come out and confirmed that they've scanned and removed all traces (if there were any) of the malware from their sites:
- ATLauncher: All clear to install and use ATLauncher modpacks
- CurseForge: All clear to install and use CurseForge modpacks and install and use CurseForge mods
- Modrinth: All clear to install and use Modrinth modpacks and install and use Modrinth mods
- Technic: All clear to install and use Technic official modpacks. Non official modpacks were not verified as they use external download sources, so if you plan on installing a third party pack from Technic, you should be cautious and scan after downloading.
Make sure that you have scanned your system using the tools mentioned above before installing or playing Minecraft.
ATLauncher will be investigating how we can detect for and warn against this type of attack going forward, including checking not only for this specific type of malware, but also checking for changes to your mods since downloading. Keep an eye out for more updates on that in the coming week or two.
As always, if you have any concerns or questions, please reach out in #malware-incident channel in our Discord.
Jun 8, 2023 - Minecraft Modding Malware Incident
There is currently an ongoing incident within the Minecraft modding community where malware has been found to be included in some Minecraft mods (and bukkit plugins) on CurseForge. This included being included in some modpacks.
There are some smart people going through and finding out what the malware does, but at a high level it looks like it steals authentication credentials for Minecraft/Microsoft accounts that are logged into various launchers (not including ATLauncher), as well as stealing browser cookies and discord tokens as well as other things.
It self replicates itself, injecting a payload into any Minecraft mods in your system so that it can spread, and that's believed to be how it got onto CurseForge, unknowingly uploaded after the devs machines were infected.
Due to the fact that it can replicate itself into mods, it's highly likely that anyone who has been infected with the malware now has it injected into the mods on their system.
You can check if you're infected by using the detector tools released by CurseForge here.
The situation is still very much ongoing, and we'll be looking to place mitigations in place within the launcher to check for the presence of these infected mods as well as at the system level if you're infected. Will be looking to roll that out soon, again some smart people are looking into mitigations and what can be done to detect and remove the malware.
While more information is still being found out, for now the recommendation is to still not download any mods from anywhere which includes CurseForge, Modrinth and from any other sources, including friends.
If you have any questions or more information, please visit us in Discord in the #malware-incident channel.
May 9, 2023 - Last chance for Microsoft account migration
Mojang have announced that on September 19th they will turn off login for unmigrated accounts. This will mean you'll no longer be able to login and play Minecraft.
We will remove legacy unmigrated account login from the launcher once Mojang have confirmed to have turned the login servers off.
If you still haven't migrated your account, please make sure you do so now so you don't lose access. If you're having troubles migrating or need help, take a look at Mojang's migration FAQ page.
Apr 27, 2023 - FTB packs no longer available
At the request of Slowpoke on behalf of FTB team, we've had to remove FTB packs from our launcher.
Pre existing instances will continue to work, but you will not be able to install new instances or update/reinstall previous ones going forward.
We've been told there may be allowances in the future to allow the inclusion of some packs again, but for the moment the importing of pre existing installs from the FTB launcher have been given the okay, and we'll be working to allow that for those that wish to use it in the future.