Dear Kiran,

there might be many other ways to compromise your server. But I wonder about 
the application you run on you Tomcat and if you know about the wide-used 
exploit in the Java JSF library "Primefaces" (see

With greetings


>-----Original Message-----
>From: Kiran Badi []
>Sent: Wednesday, May 16, 2018 7:13 PM
>To: Tomcat Users List <>
>Subject: Re: Amazon EC2 Tomcat 7.0.85 not starting up due to some memory issue 
>.Please mask if
>Yes tomcat is not starting up. I am also suspecting that EC2 instance was
>probably compromised. Not sure as how but I see some rogue programs were
>running under tomcat user. I use putty with private keys to login and those
>keys are not in public view for sure.

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