somebody hacked my Ubuntu ??

[hangnguyen]

Hello

Sometime my firefox browser suddenly turned off, sometime I can not click on any buttons, can not Shut down the Ubuntu ...ect

I worry that my ubuntu was hacked ???

How can I check ?

thanks

HN

[Cew27]

it wasnt hacked it is an instability with flash player i think

[the8thstar]

I've had this issue happen several times too. I'm interested to know what causes it. I use FF3 Beta in HH.

[hangnguyen]

thanks for replys

I scan my Ubuntu with rkhunter yesterday and got two warnings :

Performing filesystem checks
Checking /dev for suspicious file types [ Warning ]
Checking for hidden files and directories [ Warning ]

what does it mean ???

Thanks

HN

[Thirtysixway]

This has happened to me before, perhaps it's flash causing it. It's not a hacker or virus, don't worry.

[the8thstar]

thanks for replys

I scan my Ubuntu with rkhunter yesterday and got two warnings :

Performing filesystem checks
Checking /dev for suspicious file types [ Warning ]
Checking for hidden files and directories [ Warning ]

what does it mean ???

Thanks

HN

There can be false positives. AFAIK, finding trojans, worms and all these nasty beasts is not exact science.

A word of advice though: rkhunter needs to be updated with the latest definitions in order to do a good job. This takes care of a good amount of false positives. In the terminal, enter the command:

rkhunter --help

In the option list, there is an option for updating definitions. Run it first, then run rkhunter again by itself to scan the system.