Mod Introduction

Name: mfallanti-cheat Author: Mornfire Platform: Minecraft 1.21.1 / NeoForge 21.1.x Type: Server-side anti-cheat / modded-server anti-cheat

Overview

mfallanti-cheat is a comprehensive anti-cheat mod for NeoForge servers. Its core approach is to simulate vanilla physics and validate player behavior and packets on the server side, rather than relying on client-side scanning. All suspicious behavior first accumulates VL (violation level); once a threshold is reached, it triggers warnings, kicks, or bans, reducing false positives caused by network fluctuations and modded environments.

Main Features

• Movement detection: Fly, Speed, NoFall, Jesus, Spider, Step, Phase, Timer, NoSlow, Elytra, vehicles, BunnyHop
• Combat detection: Reach, KillAura, MultiAura, AutoClicker, Velocity, Criticals, WallHit, Rotation/GCD
• World interaction: Scaffold/Tower, FastBreak, FastPlace, Nuker, GhostHand, BlockReach
• Items and containers: ChestStealer, InvMove, AutoTotem, FastUse, illegal enchantments / attributes / stacks / NBT, item blacklist, abnormal increments of watched items
• Packets and client: heartbeat sequence, client Tick Timer, Blink, RTT Ping, mod blacklist/whitelist, client brand, HWID/IP multi-account detection, XRay statistical heuristics
• Modded server support: modded movement exemptions, ItemControl item rules, modded skill cooldowns, custom menu InvMove exemptions
• Supporting systems: VL decay, setback, warning → kick → temporary/permanent ban, IP/HWID bans, JSONL evidence logs, Discord Webhook, debug mode

Commands

/mfall alerts | verbose | info | mods | vl | reset | exempt | reload | ban | banip | banhwid | unban | bans

Config Files

• config/mfallanti-cheat.json
• config/mfallanti-cheat/item-rules.json
• config/mfallanti-cheat/bans.json
• config/mfallanti-cheat-client.json (optional client-side)