SpigotVIP - LPX ANTI-PACKET EXPLOIT (800+ SERVERS) 1.8-1.18.2 | UNIQUE INJECTION AND ANTI NETTY CRASHER | BlackSpigot: Leaked Spigot Plugins, Free Minecraft Models & Schematics.

Supported software: Paper
Supported versions: 1.8 / 1.12 / 1.13 / 1.15 / 1.16 / 1.17 / 1.18

LPX

Avoid NettyCrashers, prevents netty threads to be blocked by exploits without using any ViaVersion fork;
AntiCheat-Fix blocks a few packets which cause anti-cheats to make the server use a lot of CPU;
Dependency Free, doesn't require any dependency;
Advanced Packet Injection, packets are analyzed and blocked before the server could decode them in a different way compared to any other anti-exploit;
Highly configurable, easy, and detailed configuration anticheat-style;
GUI for recent alerts;
Packet logger with maximum files creation to avoid huge memory usage (toggleable);
1.8-1.18.2 Compatibility on paper and related forks;
Frequent updates when a new exploit is detected;
Printer/Schematica compatibility with API or semi-automatic system;

WHY LPX?

UNIQUE FIX FOR NETTY CRASHERS, few rare clients, like GasClient, have NettyCrasher exploits, one type of exploit that doesn't affect the server's TPS but Netty's threads. A NettyCrasher makes Netty's threads busy when a packet gets decoded, so the server crashes and doesn't listen for any packet anymore. LPX is the only anti-exploit having this check without the use of any strange ViaVersion fork or Spigot fork.
Custom Injection and no dependency required, LPX uses a unique way to inject compared to other anti-exploits, this guarantes high performance without the use of Reflections to read packets.
Smooth Packet Limiter, Usually, anti-exploits don't encourage the use of packet limiters because it could cause issues with players having bad connections. LPX has an accurate way to count spam packets and has a fully working VL system to prevent false flags when players lag. If any false is detected, the config can be easily edited to fix false flags.
Printer/Schematica Compatibility, usually packet limiters plugins causes incompatibility issues with this mods, LPX has a very useful automatic system that detects when a player started using printer mode and that guarantees no false kicks. There is also the option to use the API.
Advanced Packet Logger, if your server is attacked with a packet exploit you can log every packet sent from any player to understand what type of exploit did he use and we can fix it in a few days. Packet Logger can be disabled, configured, and doesn't take too much memory because of automatic old file removal.
Easy and detailed configuration, you can edit almost everything while you detect false-flags, you can choose to enable/disable kicks for every check, enable/disable specific checks and change EVERY VALUE used in the code.

CONFIG.YML:

Code:

license: "null"

messages:
  main-color: "&5"
  second-color: "&d"

  prefix: "%main-color%LPX >>"

  kick: "&cYou are sending suspicious packets."
  kick-alert: "%prefix% %second-color%%player% &7was kicked"

  no-permission: "%prefix% &cInsufficient permissions &7(%permission%)"
  invalid-arguments: "%prefix% &cInvalid arguments!"
  injection-failure: "%prefix% &cInjection failure!"
  update-found: "%prefix% &aAn update was found!"
  null-address: "%prefix% &cYou are joining with an invalid address!"

  alerts:
    permission: "lpx.alerts"
    format: "%prefix% %second-color%%player% &7failed %main-color%%check% %type% &7(%vl%/%max-vl%)"
    hover:
      - "%main-color%Description:"
      - "%second-color%%description%"
      - ""
      - "%main-color%Infos: %infos%"
      - ""
    enabled: "%prefix% &aAlerts enabled"
    disabled: "%prefix% &cAlerts disabled"

options:
  # Enable this only if you have fake players who cause errors during the injection
  # WARNING: Enabling this will allow players to join even on injection failures
  silent-failures: false

  # If this option is set to true, players won't be able to see the output of /lpx
  hidden-command: false

  # If activated, players with "lpx.bypass" permission will ignore checks
  bypass-permission: false

  # Add support for Geyser players (Bedrock Edition)
  geyser: false

  # Check if the plugin can be updated.
  # Permission: "lpx.update"
  check-updates: true

  # Whether bStats should be loaded (https://bstats.org/plugin/bukkit/LPX/9156)
  bstats: true

  printer:
    # Enable this if your server allows the use of printer/schematic mod, and you are not using our Printer's APIs
    automatic: false
    # Lower this value if players don't enter in printer mode correctly
    place-threshold: 10
    # Idle time after exiting printer mode
    disable-delay: 3000
    # Whether players with the permission should receive printer's alerts
    alerts: true
    # Permission to receive printer's alerts
    permission: "lpx.alerts.printer"
    join: "%prefix% %second-color%%player% &7joined printer mode (%mode%)"
    leave: "%prefix% %second-color%%player% &7left printer mode"

  # Server name, used for API integrations
  server: unnamed

  # Delay in milliseconds to wait before sending new alerts after a punishment
  punish-delay: 1000

  debug: false

packet-logger:
  enabled: false

  # Players ignored
  whitelist:
    - Ytnoos

  # List of packets to ignore
  # To find out correct names, open spigot's jar and find class' names
  # Path: net.minecraft.server
  ignore:
    - PacketPlayInFlying
    - PacketPlayInKeepAlive
    - PacketPlayInArmAnimation
    - PacketPlayInTransaction

  # Max files which can be created in a run (newer files will replace older once reached this limit)
  max-files: 50
  # Max packets to log on each file
  max-ppfs: 3000
  # Days before old folders can be automatically deleted
  old-folders: 3

checks:
  netty:
    a:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        # If this is set to automatic, then the max value below will assume one of these values based on your server version
        # 1.8 = 6144
        # 1.12 = 16384
        # 1.13 = 65536
        automatic: true
        # You can put this value to lower numbers (4096, 8192, 12228) to have much stricter protections
        max: 65536
    b:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        resolved: true
        min-length: 96
        max: 15
  window:
    a:
      enabled: true
      punish: true
      max-vl: 5
      min-vl: 3
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      buffer:
        max: 2
        multiply: 0.5
        decay: 1
    b:
      enabled: true
      punish: true
      max-vl: 5
      min-vl: 3
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
    c:
      enabled: true
      punish: true
      max-vl: 5
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
    d:
      enabled: true
      punish: true
      max-vl: 2
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
  creative:
    a:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
    b:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        max: 127
        min: 0
    c:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        max: 128
    d:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        max: 2048
    It is:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        blacklist:
          - "run_command"
          - "translation.test.invalid"
    f:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        max: 64
  place:
    a:
      enabled: true
      punish: true
      max-vl: 30
      min-vl: 15
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      buffer:
        max: 5
        multiply: 0.5
        decay: 1
      options:
        max: 40
    b:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        max: 70
  flood:
    a:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending too many packets.'
      options:
        max: 1000
    b:
      enabled: true
      punish: true
      max-vl: 15
      min-vl: 5
      punish-commands:
        - 'lpx kick %player% &cYou are sending too many packets.'
      options:
        limits:
          - "PacketPlayInArmAnimation,100"
          - "PacketPlayInUseItem,60"
          - "PacketPlayInBlockPlace,60"
          - "PacketPlayInWindowClick,50"
          - "PacketPlayInSetSlot,50"
          - "PacketPlayInPosition,100"
          - "PacketPlayInAutoRecipe,15"
          - "PacketPlayInTabComplete,40"
    c:
      enabled: true
      punish: true
      max-vl: 10
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending too many packets.'
      options:
        max: 80
    d:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending too many packets.'
      options:
        max: 13
    It is:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending too many packets.'
      options:
        threshold: 4096
        max: 8
        reset: 1000
  position:
    a:
      enabled: true
      punish: true
      max-vl: 1
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
    b:
      enabled: true
      punish: true
      max-vl: 10
      min-vl: 3
      buffer:
        max: 3
        multiply: 0.5
        decay: 0.05
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        delay: 5000
        hard: false
        ignore-fly: true
  payload:
    a:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
    b:
      enabled: true
      punish: true
      max-vl: 2
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
      options:
        delay: 1000
        max: 15
    c:
      enabled: true
      punish: true
      max-vl: 3
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
    d:
      enabled: true
      punish: true
      max-vl: 5
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'
    It is:
      enabled: true
      punish: true
      max-vl: 1
      min-vl: 1
      punish-commands:
        - 'lpx kick %player% &cYou are sending suspicious packets.'

PERMISSIONS - COMMANDS:

/lpx alerts - lpx.alerts - Receive alerts
lpx.alerts.printer - Receive printer alerts
/lpx reload - lpx.reload - Reload the configuration
/lpx gui- lpx.gui - Open the GUI
/lpx clear - lpx.clear - Clear old packet logs
/lpx kick <player> <message> - lpx.kick - Force close player connection

KNOWN INCOMPATIBILITIES: