[CentOS] What's special about port 19842?

[John R Pierce]

Anne Wilson wrote:
> I've had umpteen IPs knocking on this door yesterday.  The router blocked 
> them, so it's not a problem, but why that port?
>   

any chance you were running a torrent client, like to download the 
centos ISOs, which may have been using that port?

also, who knows, but there could be some new trojan/worm that listens on 
that port, so the botnets are trying to find each other...  its more 
common for trojan/worms to connect out rather than in, but almost 
anything goes in the malware world...