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FS Protection PC 18.4 releases (beta)
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<blockquote data-quote="MacDefender" data-source="post: 997911" data-attributes="member: 83059"><p>With unsigned samples I’ve had good luck making slight modifications or packing the executable to change the hash to get around the abch style rules. </p><p></p><p>For me, from an end user perspective, this kind of early zero day blacklisting is a good automatic defense against emerging threats before a human analysis can get around to it. It’s a good thing. </p><p></p><p>As a tester? I guess it’s uninteresting to me that F-Secure tells me “oh I found it in MalwareBazaar”. Guess what, I did too! I kind of want to see how the other engines respond to this threat. In my opinion it’s basically made MB a useless source of PE samples for F-Secure testing. Pretty much within an hour or two of the sandbox returning a negative verdict, the hash is blocked. Even trivially changing the hash bypasses that protection and results in the old behavior I wanted to test.</p></blockquote><p></p>
[QUOTE="MacDefender, post: 997911, member: 83059"] With unsigned samples I’ve had good luck making slight modifications or packing the executable to change the hash to get around the abch style rules. For me, from an end user perspective, this kind of early zero day blacklisting is a good automatic defense against emerging threats before a human analysis can get around to it. It’s a good thing. As a tester? I guess it’s uninteresting to me that F-Secure tells me “oh I found it in MalwareBazaar”. Guess what, I did too! I kind of want to see how the other engines respond to this threat. In my opinion it’s basically made MB a useless source of PE samples for F-Secure testing. Pretty much within an hour or two of the sandbox returning a negative verdict, the hash is blocked. Even trivially changing the hash bypasses that protection and results in the old behavior I wanted to test. [/QUOTE]
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