Look for viewtopic.php in your http logs (if you have them). From: [email protected] [mailto:[email protected]] On Behalf Of David McSpadden Sent: Wednesday, July 08, 2015 11:34 AM To: [email protected] Subject: RE: [NTSysADM] OT: VirusScanning software
My latest was CNN.COM. From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Jonathan Link Sent: Wednesday, July 08, 2015 11:32 AM To: [email protected]<mailto:[email protected]> Subject: Re: [NTSysADM] OT: VirusScanning software No, not yet. It's one of our directors, and he swears that the only site he visited within the last 24 hours was msn.com<http://msn.com>. So it could be the flash 0 day from an infected ad that wasn't caught? Of course, he might not be remembering something... It started working at around 8am this morning which is when he fired up his computer in the office. On Wed, Jul 8, 2015 at 11:08 AM, David McSpadden <[email protected]<mailto:[email protected]>> wrote: I know you are on vacation but do you know the attack vector? From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Jonathan Link Sent: Wednesday, July 08, 2015 10:43 AM To: [email protected]<mailto:[email protected]> Subject: Re: [NTSysADM] OT: VirusScanning software So, we just got hit with a Croptywall variant with SRP in place. I didn't disbelieve you Susan, I was just hoping that we could avoid infection until I got a true whitelisting solution in place. Oh and I'm on vacation, so this is extra fun to restore backups via the VPN. Luckily we have other systems in place that mitigated the extent of damage, such as really good backups, and tested restore procedures. On Fri, Jul 3, 2015 at 3:36 PM, Susan Bradley <[email protected]<mailto:[email protected]>> wrote: I have many consultant stories of ransomware nailing clients with software restriction policies in place - especially the web cocktail variants. Applocker/whitelisting = Enterprise SKUs. Which I hardly ever see in my space, nor does the customer base afford the time and effort. Great if you have the budget to do it, sucks if you don't have the licenses and infrastructure. On 7/3/2015 11:54 AM, Jonathan Link wrote: I was posting from my phone in a hurry, DYAC. Software Restriction, not proper pixies. Susan, I haven't seen an executable run in any location that has been blocked by SRP. IF you have a very narrow whitelist, it helps a lot. On Fri, Jul 3, 2015 at 2:02 PM, Jonathan Link <[email protected]<mailto:[email protected]>> wrote: You can also use proper pixies to restrict where software can run. I've blocked the user profile folder and added an exception for the desktop and a couple of other places that I can't recall. Users have to move downloaded apps to ther desktop to install. I haven't had a Cryptowall infection in 2 years. On Friday, July 3, 2015, Susan Bradley <[email protected]<mailto:[email protected]>> wrote: It changes so fast that as soon as they do the bad guys code up something new. there's no silver bullet here. Silverlight/flash/java. Use it,patch it or lose it. Web filtering at the firewall. If your firewall doesn't provide web filtering/UTM options it's time to upgrade. Home users look at OpenDNS (yes even now that Cisco is buying them) Filter attachments/zips. Least priv/non admin. Block the app location (yes this impacts firefox and office installs) Google foolishit for non domain or cryptolocker group policy toolkit Education to your users that that email you got isn't a legit email. On 7/3/2015 10:09 AM, David McSpadden wrote: Quick, anyone know of a VirusScanning software that is catching CryptoWall 3.0 yet? 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