If anyone has a solution or can make one for this "spamquit" hack, (the one where it shows you logging off ALOT) Please reply to this. Also this is the error it sends hundreds of times. 2011-12-24 00:10:19 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-24 00:10:19 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-24 00:10:19 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-24 00:10:19 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-24 00:10:19 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-24 00:10:19 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-24 00:10:19 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo Please help its plaguing our server T.T
I also had this problem, was the packet sent by a player named theseventhchaos ? Here's a pastebin: http://pastebin.com/5x8Q2WnW Nathan, it's not a normal login then log out spam. The person's client spams the packet over 100 times a second. The guy who did it to my server claims he didn't intend to, but I suspect he was using a hacked client. Anyone have any insight as to whether this is a glitch or a hacking attempt? The guy's appealing the ban on MCBans and I need to know whether he did it on purpose or not. Edit: forgot to mention that this crashes the server.
Apparently this isn't a spamquit hack. It's spamming the getinfo packet that shows a server's playercount etc
I'm having this issue on my server too.. heres my post that I also made here Supplying a bit more information on this, we've had a problem plaguing my server for weeks with this kind of exploit, and as far as I can tell its something that only mojang can fix. Basically, this kid logs into the server using a VPN and a stolen account, and uses the exploit, resulting in this happening in-game: The stopping the server was me in console stopping it and restarting, because this is what happens: Code: 2011-12-27 18:37:06 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-27 18:37:06 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-27 18:37:06 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-27 18:37:06 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-27 18:37:06 [WARNING] class net.minecraft.server.NetServerHandler wasn't prepared to deal with a class net.minecraft.server.Packet254GetInfo 2011-12-27 18:37:06 [SEVERE] java.lang.OutOfMemoryError: unable to create new native thread 2011-12-27 18:37:06 [SEVERE] at java.lang.Thread.start0(Native Method) 2011-12-27 18:37:06 [SEVERE] at java.lang.Thread.start(Thread.java:614) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.NetworkManager.d(NetworkManager.java:243) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.NetServerHandler.disconnect(NetServerHandler.java:119) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:661) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.NetHandler.a(SourceFile:214) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.Packet254GetInfo.a(SourceFile:16) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.NetworkManager.b(NetworkManager.java:226) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:93) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.NetworkListenThread.a(SourceFile:108) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:527) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:425) 2011-12-27 18:37:06 [SEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:457) 2011-12-27 18:37:06 [SEVERE] Unexpected exception java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:614) at net.minecraft.server.NetworkManager.d(NetworkManager.java:243) at net.minecraft.server.NetServerHandler.disconnect(NetServerHandler.java:119) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:661) at net.minecraft.server.NetHandler.a(SourceFile:214) at net.minecraft.server.Packet254GetInfo.a(SourceFile:16) at net.minecraft.server.NetworkManager.b(NetworkManager.java:226) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:93) at net.minecraft.server.NetworkListenThread.a(SourceFile:108) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:527) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:425) at net.minecraft.server.ThreadServerApplication.run(SourceFile:457) 2011-12-27 18:37:16 [INFO] CONSOLE: Stopping the server..[0m 2011-12-27 18:37:16 [INFO] Stopping server The [WARNING] go on for quite a while longer, though, I just copied the last bit. At that point everyone in the server slowely times out and you are forced to stop and restart it. If anyone has an extra info/fixes, please do post.
Just had another person do it to me again, this time a different packet. http://pastebin.com/A9EVCkFa He and his friend appeared to be using the Epsilon Client (It's a hacked client, I've been told AVO uses it). I just checked up on the latest version of it and it appears to have two new features aimed at flooding, lagging and crashing servers. Not quite sure what a "type spammer" is, but it may be the packet spammer.
avo uses their own client. they used to play on my server alot. i've posted a fix for this in my other thread http://forums.bukkit.org/threads/ne...4getinfo-spam-server-crash.51945/#post-882734