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Modrinth · Minecraft mod
AntiScan
Automatically block and report server scanners
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which AntiScan release should I use?
Latest stable file 2.0.0+26.2.x
Game version 26.2
Loader Fabric
AntiScan 2.0.0+26.2.x targets 26.2 with Fabric. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.
Where it goes
Is AntiScan required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
Client Not supported
Dedicated server Required
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
This file is marked server-only.
What else does AntiScan 2.0.0+26.2.x need?
2.0.0+26.2.x. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add AntiScan without breaking your instance.
Built for AntiScan 2.0.0+26.2.x. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.0.0+26.2.x. It targets 26.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 2.0.0+26.2.x. It opens that exact file at the source.
About this project
What does AntiScan add?
Antiscan
Antiscan blocks port scanners and reports them for you. Uses Hunter by
PebbleHost and optionally AbuseIPDB to check IPs and report attempts to scan your server.
Note that this is NOT a perfect solution, and will NOT keep your server safe on its own. This is meant to be used in
conjunction with online mode and a whitelist. It also will probably not work behind a proxy like Velocity.
Adding names/ips to the Antiscan whitelist will whitelist any connection with those names/ips - even if they don't
actually own that account or another source says they are untrustworthy. This will NOT let them bypass online mode (the
default for servers) - Minecraft's default verification is still there.
Don't share your antiscan folder! It will include IPs, including those that you've whitelisted (which are probably the IPs
of those you know). It will also include your AbuseIPDB key if you've added it.
Set up AbuseIPDB
If you have an AbuseIPDB key, Antiscan can check IPs with it and report the IPs you've blocked (and IPs that try to log
in with your blocked names). To enable this:
- Start the server with Antiscan installed
- Add your key to the newly-generated
antiscan/antiscan-key-do-not-share.txtfile (by the way, don't share that file either) - Restart the server
Commands (v2, 1.21+)
| Command | Action | Permission node | Default |
|---|---|---|---|
antiscan (blacklist|whitelist) (ip|name) list |
Show the contents of a blacklist/whitelist. | antiscan.(blacklist|whitelist).(ip|name).list |
Admins (3) |
antiscan (blacklist|whitelist) (ip|name) add <to_add> |
Add something to a blacklist/whitelist. | antiscan.(blacklist|whitelist).(ip|name).add |
Owners (4) |
antiscan (blacklist|whitelist) (ip|name) remove <to_remove> |
Remove something from a blacklist/whitelist. | antiscan.(blacklist|whitelist).(ip|name).remove |
Owners (3) |
antiscan report <ip> |
Report an IP to AbuseIPDB for port scanning. | antiscan.report |
Owners (4) |
Project description from Modrinth.
Pick your setup
AntiScan by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
26.1.2
1 loader buildMinecraft version
26.1.1
1 loader buildMinecraft version
26.1
1 loader buildMinecraft version
25w14craftmine
1 loader buildMinecraft version
1.21.11
1 loader buildMinecraft version
1.21.10
1 loader buildMinecraft version
1.21.9
1 loader buildMinecraft version
1.21.8
1 loader buildMinecraft version
1.21.7
1 loader buildMinecraft version
1.21.6
1 loader buildMinecraft version
1.21.5
1 loader buildShowing the newest 12 of 24 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
AntiScan versions and loaders
2.0.0+26.2.x
antiscan-2.0.0+26.2.jar
5 Jul 2026
Client Not supported Server Required Dependencies No extras listed Listed on Release listing
Check the 26.2 · Fabric setup 26.2Fabric release
2.0.0+26.1.x
antiscan-2.0.0+26.1.jar
5 Jul 2026
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 26.1.2 · Fabric setup 26.126.1.126.1.2Fabric release
2.0.0+1.21.6
antiscan-2.0.0+1.21.6.jar
14 Jan 2026
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.21.6 · Fabric setup 1.21.6Fabric release
2.0.0
antiscan-2.0.0+1.21.11.jar
14 Jan 2026
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.21.11 · Fabric setup 1.21.11Fabric release
2.0.0
antiscan-2.0.0+1.21.9.jar
12 Jan 2026
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.21.10 · Fabric setup 1.21.101.21.9Fabric release
2.0.0
antiscan-2.0.0+1.21.7.jar
12 Jan 2026
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.21.7 · Fabric setup 1.21.7Fabric release
2.0.0
antiscan-2.0.0+1.21.5.jar
12 Jan 2026
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.21.5 · Fabric setup 1.21.11.21.21.21.31.21.4 release
2.0.0
antiscan-2.0.0+1.20.5.jar
12 Jan 2026
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.6 · Fabric setup 1.20.51.20.6Fabric release
0.1.5+1.20.2
antiscan-0.1.5+1.20.2.jar
9 Dec 2025
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.2 · Fabric setup 1.20.2Fabric beta
0.1.5+1.20.3
antiscan-0.1.5+1.20.3.jar
9 Dec 2025
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.3 · Fabric setup 1.20.3Fabric beta
0.1.5+1.20
antiscan-0.1.5+1.20.jar
9 Dec 2025
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20 · Fabric setup 1.20Fabric beta
0.1.5+1.20.4
antiscan-0.1.5+1.20.4.jar
9 Dec 2025
Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.4 · Fabric setup 1.20.4Fabric beta
Looking for an older file? The official Modrinth project page is in Resources.
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