Solved

how to block advanced pc shield in sonicwall

Posted on 2011-09-29
1
576 Views
Last Modified: 2013-11-16
Hi
I am using sonicwall nsa2400 in company, recently one of my user who accidentally hit the ok button when the faked antivirus software pop up when the user browsing a website, my sonicwall has antispyware and content filtering subscription but still not able to detect it, how come?  And how can i block such kind of faked antivirus software and spyware?

Thanks!
0
Comment
Question by:KANEWONG
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 13

Accepted Solution

by:
khairil earned 500 total points
ID: 36890295
Hi,

It is like chicken and egg thing. We have dual layer firewall (different brand) + antimalware installed, but still out of 10,000 there are 2 or 3 that feels they are more knowledgable than us so they decide to put additional av - which then found out to be fake.

How come?
The answer are:
1. Firewall and antimalware depends on signature, if they do not have it then they do not know it. Some have heuristic that be able to guess some of the files but still not all.
2. The install package have special way to pack the files, which makes antimalware/spyware useless because they cannot "see" what is the package.

You can blocked that file by file name or hash signature (if your firewall support that) but by experience, it is useless - the scammer always come out with new "version" that have different signature.

The best thing you can do it to have awareness programme to your users. If you have active directory and your user attach to it, you can use GPO to disallow user from running installer of that fakeware - you still can do this manually with more work. You also might want to impose some fine if user failed to comply with that - you better have published policy before doing that.

0

Featured Post

What Is Transaction Monitoring and who needs it?

Synthetic Transaction Monitoring that you need for the day to day, which ensures your business website keeps running optimally, and that there is no downtime to impact your customer experience.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Network traffic routing plays key role in your network, if you have single site with heavy browsing or multiple sites, replicating important application data from your Primary Default Gateway ,you have to route your other network traffic from your p…
Imagine you have a shopping list of items you need to get at the grocery store. You have two options: A. Take one trip to the grocery store and get everything you need for the week, or B. Take multiple trips, buying an item at a time, to achieve t…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …

728 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question