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Malware Analysis
New powerful malware obfuscation technique
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<blockquote data-quote="MacDefender" data-source="post: 907046" data-attributes="member: 83059"><p>No matter what, this attack has to start with a malicious script or executable commanding Windows Explorer to do something malicious. Yes, an AV that just looks at the second half (Windows Explorer and beyond) can’t tell this is malicious, but we have seen Kaspersky System Watcher and others defeat 7Zip and other LOLBin attacks despite the second half having good reputation.</p><p></p><p>In my opinion it really boils down to the popularity of the attack. If it is prevalent, every AV will have some answer to the threat. But if it’s newly invented, we consistently see an industry wide weakness where AVs, even with behavior blockers, are unreliable and can be bypassed by completely novel techniques. It is out of the scope of a stock AV+behavior blocker to defend machines against hand crafted custom attacks when the user is going to happily execute anything</p></blockquote><p></p>
[QUOTE="MacDefender, post: 907046, member: 83059"] No matter what, this attack has to start with a malicious script or executable commanding Windows Explorer to do something malicious. Yes, an AV that just looks at the second half (Windows Explorer and beyond) can’t tell this is malicious, but we have seen Kaspersky System Watcher and others defeat 7Zip and other LOLBin attacks despite the second half having good reputation. In my opinion it really boils down to the popularity of the attack. If it is prevalent, every AV will have some answer to the threat. But if it’s newly invented, we consistently see an industry wide weakness where AVs, even with behavior blockers, are unreliable and can be bypassed by completely novel techniques. It is out of the scope of a stock AV+behavior blocker to defend machines against hand crafted custom attacks when the user is going to happily execute anything [/QUOTE]
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