Server Guard
A protection layer stopping packet-level exploits and bot traffic.
Overview
A guard and anti-bot layer for a High Five server after a wave of movement hacks and duplication attempts.
The challenge
Players were exploiting packet-injection movement and probing for dupes. The staff had no visibility and were reacting to Discord reports hours later.
Our solution
We added server-side validation and rate limiting on high-risk packets, impossible-sequence detection, anti-bot behavior heuristics, and adena-flow anomaly alerts routed to staff - plus fixes for the specific dupe vectors found in an audit.
Key features
- Packet validation and rate limiting
- Impossible-action detection
- Anti-bot behavior heuristics
- Economy anomaly alerting
- Full admin command auditing
- Regression tests for fixed exploits
This case study describes the type and scope of work L2Developers delivers. Details are representative.
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