Forums
New posts
Search forums
News
Security News
Technology News
Giveaways
Giveaways, Promotions and Contests
Discounts & Deals
Reviews
Users Reviews
Video Reviews
Support
Windows Malware Removal Help & Support
Inactive Support Threads
Mac Malware Removal Help & Support
Mobile Malware Removal Help & Support
Blog
Log in
Register
What's new
Search
Search titles only
By:
Search titles only
By:
Reply to thread
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Security
Video Reviews - Security and Privacy
COMODO Internet Security 2024 BETA
Message
<blockquote data-quote="cruelsister" data-source="post: 1072768" data-attributes="member: 7463"><p>Regarding LoLBins, far too often folk will block legitimate Windows executables in the hope of preventing malicious actions- this is often seen by totally blocking things like wscript and/or powershell, both of which, although created for high and noble purposes can obviously be exploited in many ways. Such blanket blocks may indeed prevent malicious actions to proceed, but may also lead to the OS not functioning properly.</p><p></p><p>The best method of preventing a LoLbin infection is to prevent the malicious action that can arise from a valid Windows exe and not the actual exe itself. The containment module of Comodo will do just that without the need for excessive HIPS blocking rules being created.</p><p></p><p>An example would be something like certutil.exe, which can be used to configure Certificate services and to verify certificates. It can also be used for various nasty things, most commonly in Ransomware to encrypt files.</p><p></p><p>To see how Comodo containment would deal with a potentially malicious action arising from certutil.exe. consider this (and this is TOTALLY safe to do):</p><p></p><p>We can add a command to certutil to direct it to download something from somewhere (trojans love this)- for example let's have certutil connect out and download 7Zip from the 7Zip website and save it---</p><p></p><p>Copy this to Notepad and save it as test.bat-</p><p></p><p>"certutil.exe -urlcache -split -f <a href="http://7-zip.org/a/7z1604-x64.exe" target="_blank">http://7-zip.org/a/7z1604-x64.exe</a> 7zip.exe"</p><p></p><p>Plop that batch file in a directory and run it with containment disabled. You will see a connection out and the 7zip application downloaded to that directory. Also note that no FW alert will be seen if the FW module is in Safe Mode as certutil is trusted.</p><p></p><p>Now try it with Comodo Containment enabled at any level. The potentially malicious will be prevented without the need for totally block on certutil itself, no fancy Rules needed which would restrict legitimate Windows functions without added to malware protection.</p><p></p><p>m</p></blockquote><p></p>
[QUOTE="cruelsister, post: 1072768, member: 7463"] Regarding LoLBins, far too often folk will block legitimate Windows executables in the hope of preventing malicious actions- this is often seen by totally blocking things like wscript and/or powershell, both of which, although created for high and noble purposes can obviously be exploited in many ways. Such blanket blocks may indeed prevent malicious actions to proceed, but may also lead to the OS not functioning properly. The best method of preventing a LoLbin infection is to prevent the malicious action that can arise from a valid Windows exe and not the actual exe itself. The containment module of Comodo will do just that without the need for excessive HIPS blocking rules being created. An example would be something like certutil.exe, which can be used to configure Certificate services and to verify certificates. It can also be used for various nasty things, most commonly in Ransomware to encrypt files. To see how Comodo containment would deal with a potentially malicious action arising from certutil.exe. consider this (and this is TOTALLY safe to do): We can add a command to certutil to direct it to download something from somewhere (trojans love this)- for example let's have certutil connect out and download 7Zip from the 7Zip website and save it--- Copy this to Notepad and save it as test.bat- "certutil.exe -urlcache -split -f [URL]http://7-zip.org/a/7z1604-x64.exe[/URL] 7zip.exe" Plop that batch file in a directory and run it with containment disabled. You will see a connection out and the 7zip application downloaded to that directory. Also note that no FW alert will be seen if the FW module is in Safe Mode as certutil is trusted. Now try it with Comodo Containment enabled at any level. The potentially malicious will be prevented without the need for totally block on certutil itself, no fancy Rules needed which would restrict legitimate Windows functions without added to malware protection. m [/QUOTE]
Insert quotes…
Verification
Post reply
Top
