Our server has been in production for years without issues, but today it
crashed out of the blue.
Last in the logs:
Exception in thread "main" java.lang.NoClassDefFoundError:
aasxknsakadskdskdskdsakmxxads
Caused by: java.lang.ClassNotFoundException: aasknsakadskdskdskdsakmads
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: aasxknsakadskdskdskdsakxxmads. Program will exit.
While its obvious what caused the crash, i have no clue as to why. We have no
new production code, nothing has changed as far as we know. I'm not sure how to
investigate this, to me it seems like some sort of dynamic class-loading hack
attempt?
Can i look for some configured service to turn off?
I'm at a loss so any pointers on how to investigate / prevent this would be
extremely appreciated.
Tomcat/6.0.28
