I don't think a signature update will resolve the issue. But you can give it a shot.Thanks.

Sure. Please keep me posted.Thanks.

Thanks Ahmed for the core file.I see the following in your core file:0x0x8316ea9   +/usr/cids/idsRoot/bin/sensorApp(_ZN3Cid6Sensor4Proc11SignatureDB11TcpRootNode9expireNowEv+0x19) [0x8316ea9];0x0x406328f0   +/lib/libc.so.6 [0x406328f0];0x0x8318be3   ...

What version are you running?Do you have a core.txt in your sh tech? If so, can you paste that info?Thanks.