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Any real-time software that uses non-traditional ways to find malware?
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<blockquote data-quote="ForgottenSeer 89360" data-source="post: 916226"><p>They won’t be located in common malware hiding spot, because they are the first part of the attack chain. User would have downloaded them either on the desktop, or in %userprofile%\downloads.</p><p>Simply using obfuscation won’t produce results diverse enough, but if you combine it with imagination, results can be very different.</p><p>Invoke-Obfuscation Master is one PowerShell obfuscator I like, but it’s not difficult to obfuscate code even without it.</p><p>You just have to know that:</p><p>PowerShell supports various types of encoding/compression/concatenation</p><p>and</p><p>PowerShell treats every line as a new command, unless there is a calculation.</p><p>Attackers normally execute long PowerShell code by adding a calculation at the end/beginning of new line.</p><p></p><p>Treating scripts spawned from a trusted process as “safe” is the biggest mistake that could be made. This is what attackers usually rely on. In my opinion they’ve started using scripts only to bypass reputation checks. Same is with Java malware.</p><p>You have a process already whitelisted (wscript, cscript, cmd, powershell, javaw), but their behaviour is variable.</p></blockquote><p></p>
[QUOTE="ForgottenSeer 89360, post: 916226"] They won’t be located in common malware hiding spot, because they are the first part of the attack chain. User would have downloaded them either on the desktop, or in %userprofile%\downloads. Simply using obfuscation won’t produce results diverse enough, but if you combine it with imagination, results can be very different. Invoke-Obfuscation Master is one PowerShell obfuscator I like, but it’s not difficult to obfuscate code even without it. You just have to know that: PowerShell supports various types of encoding/compression/concatenation and PowerShell treats every line as a new command, unless there is a calculation. Attackers normally execute long PowerShell code by adding a calculation at the end/beginning of new line. Treating scripts spawned from a trusted process as “safe” is the biggest mistake that could be made. This is what attackers usually rely on. In my opinion they’ve started using scripts only to bypass reputation checks. Same is with Java malware. You have a process already whitelisted (wscript, cscript, cmd, powershell, javaw), but their behaviour is variable. [/QUOTE]
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