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Video Reviews - Security and Privacy
ESET IS (Default) vs Ransominator
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<blockquote data-quote="MacDefender" data-source="post: 876764" data-attributes="member: 83059"><p>I agree, the answer is kind of complicated. No, real ransomware tends to have a mechanism for phoning home, a mechanism for uploading/escrowing some sort of key (if not your entire data), and are likely based off some existing form of ransomware.</p><p></p><p>With that said, we've seen real world ransomware that uses WinZip, 7Zip, and other archivers to do the encrypting. And we've seen the recent CertUtil.exe based ransomware that defeats many AV software because it uses a built in system binary to do the dirty work.</p><p></p><p>One can argue that if your AV cannot detect this threat, you're vulnerable to this class of attacks. After all, scripts and fileless malware can bypass static inspection, leaving it up to the behavior blocker to save your files. If it cannot detect this attack, your files could very well have been encrypted and lost, even if another component of your AV software detects the attempt to phone home or subsequent suspicious behavior.</p><p></p><p>Very very few have the ability to roll back harmful actions -- KSW is one of them, but in one of the tests conducted against my sample, it also failed to completely roll everything back.</p></blockquote><p></p>
[QUOTE="MacDefender, post: 876764, member: 83059"] I agree, the answer is kind of complicated. No, real ransomware tends to have a mechanism for phoning home, a mechanism for uploading/escrowing some sort of key (if not your entire data), and are likely based off some existing form of ransomware. With that said, we've seen real world ransomware that uses WinZip, 7Zip, and other archivers to do the encrypting. And we've seen the recent CertUtil.exe based ransomware that defeats many AV software because it uses a built in system binary to do the dirty work. One can argue that if your AV cannot detect this threat, you're vulnerable to this class of attacks. After all, scripts and fileless malware can bypass static inspection, leaving it up to the behavior blocker to save your files. If it cannot detect this attack, your files could very well have been encrypted and lost, even if another component of your AV software detects the attempt to phone home or subsequent suspicious behavior. Very very few have the ability to roll back harmful actions -- KSW is one of them, but in one of the tests conducted against my sample, it also failed to completely roll everything back. [/QUOTE]
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