Malware damage by UAC bypass?

Littlebits

Retired Staff
May 3, 2011
3,893
thanks for providing the time to type all this. Very useful and informative.
If a user browses the web and enters all kind of grey pages but does not let files to be downloaded to the pc, he only clicks everywhere and cancel any transfer going to start.. will windows security protect him fully from any malware coming from these sites?

There are exceptions to every rule, but for the most part yes Windows default security should protect them.
Exceptions would include vulnerabilities exploited in the browser or browser plugins, vulnerabilities exploited within Windows OS.

Resolutions to prevent these exceptions would be to make sure that your browser, browser plugins and Windows OS is kept updated with the latest patches. Add security extensions to your browser to block scripts, plugins, suspicious sites, ads, etc. If you have Java Runtime installed, disable the browsers extensions.

Thanks. :D
 

Koroke San

Level 29
Verified
Jan 22, 2014
1,804
thanks for providing the time to type all this. Very useful and informative.
If a user browses the web and enters all kind of grey pages but does not let files to be downloaded to the pc, he only clicks everywhere and cancel any transfer going to start.. will windows security protect him fully from any malware coming from these sites?
You can't cancel transfer if u clicks everywhere. like when u lick on a dangerous exploit link in IE earlier version ur browser will hangs & shut down itself & ur system will crash. a guy showed this in yt. So updating browser is good idea & sometimes malware hides in temporary files without notifying u when u clicks on malicious links even ur AV BB or real time protection sometimes miss that. So better wisely use ur mouse clicks.
 

Nikos751

Level 20
Thread author
Verified
Malware Tester
Feb 1, 2013
970
You can't cancel transfer if u clicks everywhere. like when u lick on a dangerous exploit link in IE earlier version ur browser will hangs & shut down itself & ur system will crash. a guy showed this in yt. So updating browser is good idea & sometimes malware hides in temporary files without notifying u when u clicks on malicious links even ur AV BB or real time protection sometimes miss that. So better wisely use ur mouse clicks.
Of course I am always cautious when browsing, I asked for learning reasons. :)
I had those thng you say in mind when made the question. Lets say the browser is being exploited and crashes, lets say the same for system too. After that, whats the possibility uac or/and hips etc to block the infection?
Can uac do it as well as the hips or antivirus?

I personally have the system and apps fully updated, I use Internet explorer with epm & 64 bit mode enabled, foxit reader instead of adobe reader, no java, UAC full, smartscreen on, norton dns.
For what I ve not decided is the av/firewall part. I currently have avira with private firewall.
thanks!
 
Last edited:

Cats-4_Owners-2

Level 39
Verified
Honorary Member
Top Poster
Well-known
Dec 4, 2013
2,800
For what I ve not decided is the av/firewall part. I currently have avira with private firewall.
thanks!

Older systems like our XP SP 3 need a solid 3rd party firewall. Online Armor looked like a good one, but I use Avira & Privatefirewall;) & both are free.:D
 

Koroke San

Level 29
Verified
Jan 22, 2014
1,804
Of course I am always cautious when browsing, I asked for learning reasons. :)
I had those thng you say in mind when made the question. Lets say the browser is being exploited and crashes, lets say the same for system too. After that, whats the possibility uac or/and hips etc to block the infection?
Can uac do it as well as the hips or antivirus?

I personally have the system and apps fully updated, I use Internet explorer with epm & 64 bit mode enabled, foxit reader instead of adobe reader, no java, UAC full, smartscreen on, norton dns.
For what I ve not decided is the av/firewall part. I currently have avira with private firewall.
thanks!

I can't find that Yt video for you which he tested that exploit coz i watched it long time ago. But after his system crashed, it wasn't rebooting. I don't know he was enabled UAC , HIPS or any AV. But what i know is AV can miss some exploits. He just pasted a rare exploit url link in IE 9 & pressed enter then his system gets owned. But then he tested it against IE 11, firefox & chrome latest version , it can't execute in system. So if ur browser, ur addons, plugins, java & adobe flash players is up to date , it's rare that exploit can execute in ur system . Also ur AV url protection will block malicious links. Norton & comodo DNS failed in my test to detect malicious URL so u can use panda url filter or Avira browser safety with K9 to block malicious urls. Both panda url filter & Avira browser safety gives me impressive results to detect malicious url & K9 ( tweak settings ) block almost malicious urls :) For checking suspicious link, u can use addons like VTchromizer (chrome) & VTzilla (firefox). U can use sanboxie for ur browser if u want, it depends on u. U can also use malwarebytes Anti-exploit if u want a lil extra protection. Overall ur setup is good :)
 

Nikos751

Level 20
Thread author
Verified
Malware Tester
Feb 1, 2013
970
I can't find that Yt video for you which he tested that exploit coz i watched it long time ago. But after his system crashed, it wasn't rebooting. I don't know he was enabled UAC , HIPS or any AV. But what i know is AV can miss some exploits. He just pasted a rare exploit url link in IE 9 & pressed enter then his system gets owned. But then he tested it against IE 11, firefox & chrome latest version , it can't execute in system. So if ur browser, ur addons, plugins, java & adobe flash players is up to date , it's rare that exploit can execute in ur system . Also ur AV url protection will block malicious links. Norton & comodo DNS failed in my test to detect malicious URL so u can use panda url filter or Avira browser safety with K9 to block malicious urls. Both panda url filter & Avira browser safety gives me impressive results to detect malicious url & K9 ( tweak settings ) block almost malicious urls :) For checking suspicious link, u can use addons like VTchromizer (chrome) & VTzilla (firefox). U can use sanboxie for ur browser if u want, it depends on u. U can also use malwarebytes Anti-exploit if u want a lil extra protection. Overall ur setup is good :)
I decided to use internet explorer with epm & 64 bit mode, for now so these addons cannot be used for now, thanks anyway!
 

Ink

Administrator
Verified
Jan 8, 2011
22,490
What is EPM?
http://msdn.microsoft.com/en-us/library/ie/dn265025(v=vs.85).aspx
http://support.microsoft.com/kb/2864914
How to Enable/Disable EPM in Internet Explorer:
http://www.eightforums.com/tutorials/31977-internet-explorer-enhanced-protected-mode-turn-off.html

You can use the Fanboy IE AdBlock Filter via the TPL option.
http://www.fanboy.co.nz/ie.html (Add TPL)

If you use Windows 8, you can download Adobe Reader Touch from the Windows Store, or use Chrome as your default PDF Reader. Mozilla Firefox also have their own PDF.js for viewing PDF documents.
 

Nikos751

Level 20
Thread author
Verified
Malware Tester
Feb 1, 2013
970
What is EPM?
http://msdn.microsoft.com/en-us/library/ie/dn265025(v=vs.85).aspx
http://support.microsoft.com/kb/2864914
How to Enable/Disable EPM in Internet Explorer:
http://www.eightforums.com/tutorials/31977-internet-explorer-enhanced-protected-mode-turn-off.html

You can use the Fanboy IE AdBlock Filter via the TPL option.
http://www.fanboy.co.nz/ie.html (Add TPL)

If you use Windows 8, you can download Adobe Reader Touch from the Windows Store, or use Chrome as your default PDF Reader. Mozilla Firefox also have their own PDF.js for viewing PDF documents.
Thanks! I have already enabled these features and added fanboy and easy privacy. I use foxit reader for pdf at the moment. What I wanna know is which technology is more malware proof. Internet explorer's 64 bit mode, and epm or chrome's sandbox? Or more generally, which browser is safer considering ie's epm etc are on.
In general I 've learned some general things about each of them, but what happens in action?
 

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