[requesting help] with a server attacker

[ScRaB4ever]

hello

can someone help me fix this attack?

ty

[vagos123]

exeis kanei rework to mmocore sou oste na blockarei programs san kai auto poy stelnoun unknown packets?

[L2Αpollon]

Find his IP and blacklist/ban him in firewall,zone alarm or whatever u use for protection.

[ScRaB4ever]

exw katebasei ato mmo apo ayto edw to post

http://maxcheaters.com/forum/index.php?topic=139654.msg993820;topicseen#msg993820

otan kanw atack ston log in den peftei otan kanw omws ston gs peftei:/

ston log m bgazei Wrong checksum from client: [89.210.250.100]

enw ston gs spammarei ta grammata

[vagos123]

exw katebasei ato mmo apo ayto edw to post

http://maxcheaters.com/forum/index.php?topic=139654.msg993820;topicseen#msg993820

otan kanw atack ston log in den peftei otan kanw omws ston gs peftei:/

ston log m bgazei Wrong checksum from client: [89.210.250.100]

enw ston gs spammarei ta grammata

logiko einai afou opos eida se auto to mmocore o commocus eftiakse sigekrimena to noobish error...

 

mporeis na psakseis na vreis kapio rework sxetika me packet flooding...

[ScRaB4ever]

me mperdepses

afoy ston gs kai ton ls exw to idio mmcore kai kanw attack me to idio programma....

 

[vagos123]

me mperdepses

afoy ston gs kai ton ls exw to idio mmcore kai kanw attack me to idio programma....

 

lpn 8a prospa8iso na se ksemperdepso..

 

to noobish error , to opio einai fixed sto mmocore pou perases an 8imame kala exei na kanei me tn buffer

 

ayto pou vlepo egw tora einai packet flooding dld kapios me ena programma sou stelnei unknown packets oste na sou kolisei ton server

 

xriazese lpn na kaneis ena oraio rework sto mmocore sou sxetika me packet flooding . elpizo na se ksemperdepsa

[ScRaB4ever]

bsk to prog kai stelnei dipla packets oxi mono agnosta

opws kai na exei gt to attack den pianei ston login??

[vagos123]

bsk to prog kai stelnei dipla packets oxi mono agnosta

opws kai na exei gt to attack den pianei ston login??

gt sto login kai na stilei packets dn 8a ginei tpt.. olo to setup tou server einai sto gameserver

[Flash™]

Perase ayto edw einai to fix  tou Noobish Error

 

to exw kanei test kai se pack diko mou pou eixa ftia3ei c6

+++ b/trunk/Tange/java/net/sf/l2j/mmocore/SelectorThread.java
@@ -334,8 +334,7 @@
         if (buf.position() == buf.limit())
         {
-            // should never happen
-            System.out.println("POS ANTES SC.READ(): "+buf.position()+" limit: "+buf.limit());
-            System.out.println("NOOBISH ERROR "+( buf == READ_BUFFER ? "READ_BUFFER" : "temp"));
-            System.exit(0);
+                System.out.println("MMOCore: "+ con.getSocketChannel().socket().getInetAddress().getHostAddress());
+                con.onForcedDisconnection();
+                this.closeConnectionImpl(con);
         }

@@ -362,7 +361,7 @@
         else if (result == 0)
         {
-            // read interest but nothing to read? wtf?
-            System.out.println("NOOBISH ERROR 2 THE MISSION");
-            System.exit(0);
+                System.out.println("MMOCore: "+ con.getSocketChannel().socket().getInetAddress().getHostAddress());
+                con.onForcedDisconnection();
+                this.closeConnectionImpl(con);
         }
         else if (result == -1)

[ScRaB4ever]

emmm bsk den exw pigeo kodika gia to mmocore.... alla logika ayto p katebasa 8a to exei ka8os ama deis sthn pic panw leei

MMOCORE: IP

dhladh ayto edw

System.out.println("MMOCore: "+ con.getSocketChannel().socket().getInetAddress().getHostAddress());

[edit] ebala ena palio mmcore son log in kai ekana attack ston server kai pali m elege wrong checksum...

ap oti exw katalabei to problhma den einai sto mmcore alla se kapoio allo arxeio. isws sto l2jserver

perasa ola ta arxeia java toy login ston gs

pali mporoysa na kanw attack.

sinepws mporoyme na poyme oti to fix brhskete kapoy poy epireazei mono ton log in server

[Kràtos]

lpn 8a prospa8iso na se ksemperdepso..

 

to noobish error , to opio einai fixed sto mmocore pou perases an 8imame kala exei na kanei me tn buffer

 

ayto pou vlepo egw tora einai packet flooding dld kapios me ena programma sou stelnei unknown packets oste na sou kolisei ton server

 

xriazese lpn na kaneis ena oraio rework sto mmocore sou sxetika me packet flooding . elpizo na se ksemperdepsa

 

????

 

Poia einai i sxesi tou error apo ta unkown packets... me to mmocore? to mmocore einai buffering kai thread controler tou core.

 

Sta client packets kai server packets gynetai to filtrarisma...

 

 

hello

can someone help me fix this attack?

ty

 

Otan anoikses ton server hkseres oti yparxoun aniothi "flooder" i opws theleis pestous... kai stin consola... den vlepo se pio thread gynetai atack + oti i ip ayth pianou einai dikia sou? tou atacker?

[Azumaril$]

To mmocore pou exeis ine mia xara, exei fixed to noobish error, den xriazete n a to ksana peraseis.

1.Vale iPV4 filter,einai shared edw pera sto maxcheaters.

2.an exeis provlimata akoma pare to mmocore apo l2jacis.

[Flash™]

File mou pare ayto edw des ti exei ftia3ei kai ama einai kanto kai esu...

[ScRaB4ever]

exw balei  iPV4 filter gia to l2jkiller

@◦Cobra◦:h ip einai dika m

to prob einai oti den kanoyn flood mesa apo to game to prob einai oti steloyn dipla h agnosta paketa mesw mias ip kai port

aytoi p floodaroyn den einai kan sto paixnidi mesa

exw skeytei pws prepei na einai to fix alla den kserw na to fitaksw

to fix prepei naexei ws ekseis

1) na diabazei ta paketa p steleni mia ip

2)na metraei posa paketa stelnei se ena sec h ip

3)ama stelei para polla na trwei dc h ip

 

ston l2mafia p prospa8hsa na kanw attack den ginotan m ebgaze ston attacker to error p bgazei otan kanw attack ston log in

 

[edit] to fix brhskete sto arneio l2loginclient (ekei brhskete to "Wrong checksum from client: "+toString());)

pws omws to pernaw ston gameserver?

 

[ScRaB4ever]

bump

[edit] mporei kapoios na me boh8hseis na ftiaksw ayto edw?

to ekana copy apo ton login kai to perasa sto arxeio l2gameclient.java sta network

pisteyo oti ama perasw ayto 8a ftiaxtei to prob p exw....

 

public void setState(GameClientState pState)

{

state = pState;

}

 

public long getConnectionStartTime()

{

return _connectionStartTime;

}

 

@Override

public boolean decrypt(ByteBuffer buf, int size)

{

boolean reta = false;

try

{

    reta = crypt.decrypt(buf.array(), buf.position(), size);

}

catch (IOException e)

{

e.printStackTrace();

closeNow();

return false;

}

 

if (!reta)

{

byte[] dump = new byte;

System.arraycopy(buf.array(), buf.position(), dump, 0, size);

_log.warning("Wrong checksum from client: "+toString());

closeNow();

}

 

return reta;

}