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Flying down from y=1000 may result in a false elytra detection #2174

Closed ChiboYen closed 3 years ago

ChiboYen commented 3 years ago

Issue description

A fellow user of my configuration achieved an aac_move_elytra detection of

[23:27:41] [Server thread/INFO]:  Scoring (163)
[23:27:41] [Server thread/INFO]:   - The player has moved 94.3 blocks/min incorrectly with the elytra
[23:27:41] [Server thread/INFO]:   - The player recently joined from a new ip address
[23:27:41] [Server thread/INFO]:   - Insufficient data to analyse the player's interactions
[23:27:41] [Server thread/INFO]:   - Insufficient data to analyse the player's movement
[23:27:41] [Server thread/INFO]:   - Insufficient data to analyse the player's combat
[23:27:41] [Server thread/INFO]: Generated by AAC 5.0.11

They simply flew straight down at very high speeds using an elytra (from a very high y-level, like 1000)

Debug: https://pastebin.com/GyETXsz6

Core information

Server version: 1.16.5

AAC version: 5.0.11

ProtocolLib version: 4.6.0

Configuration

Not configuration related, the false-positive achieved a reasonable VL for the subcategory that a regular hacker would