Web broswer probs... not looking forward to work tomorrow :(
OK i think this is my first post and i have dyslexia so please forgive any errors. i find it hard to get my point across sometimes but here goes....
oh and sorry for the long post;
i think we have some big probs at oursite..... and i think this might just be the tip of the iceberg!
for a few weeks now, the internet access drops for approx 3mins at 3 set times during the day. I've checked update/backup schedules and almost every bit of software installed in our site to see if something is floodin' the net. i couldn't see anything amiss.
it happened today, so i check the firewall log to see if anything popped up in there..... i have reports saying computer X @ 10.15.x.x has exceded http requests and might be infected.blah blah blah..... at first i thought, cable, nic faulty. but the list of machines is as long as my arm......
so i think oh dear... we have a virus...... so i asked when the last sophos update was done and what the report reads... and 45% of the networks pcs are infected with;
...... now i'm very new to domains and large networks at a whole... so please forgive me if some of my wording is off.
the sophos version we WERE on was 4.5 sophos console and endpoint 9.5 (i think might have that the wrong way around)
with it being a virus issue i asked my boss if there was a newer version of sophos.... to which we found console 5 and endpoint 10.....
both of which are NOW installed and fully updated.....after doing a scan on all the computers infected. the virus "SEEMS" to of been removed.
however.... all the web broswers on all the computers on the network are now crashing ..... servers/clients on both domains the lot. Firefox/ie/safari .
this didn't happen stright away some 3hrs after the sophos update...... it might just be coincidence that this is happening after a sophs update. but i really dont know where to start.....
i tested all the broswers. firefox just crashes and gives a "oops error", ie just drops to the desktop, safari locks ups and google also gives the "oops" error.
i thought sophos must be blocking something, so i disabled it breifly... but the same thing happened...... i had to use the 3g dongle to get online.... which worked fine on all broswers..... i even checked on a "suspected" infected pc. works fine.
done a scan on all the servers all clean....... my head hurts now..... and im not looking forwards to tomorrow....
any ideas? thx in advance.