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blog.ifem.co.uk | ||
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blogs.mathworks.com
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| | | | | I'd like to introduce this week's guest blogger Alan Weiss. Alan writes documentation for mathematical toolboxes here at MathWorks.Hi, folks. While I have not | |
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nickdrozd.github.io
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| | | | | The classic Busy Beaver game asks how long an n-state k-color Turing machine program can run before executing a halt instruction. The phrase "executing a halt instruction" is not normally used in stating the problem; instead, people just say "halting". But executing a halt instruction is just one way for a program to signal that it is finished. From the point of view of a programmer trying to maximize machine steps, it's about the worst termination signal possible because it requires wasting valuable program space on the halt instruction. If other termination conditions are allowed, programs can run for much, much longer. | |
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louisabraham.github.io
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forensicitguy.github.io
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| | | In this post I want to take a look at a PowerShell-based Cobalt Strike beacon that appeared on MalwareBazaar. This particular beacon is representative of most PowerShell Cobalt Strike activity I see in the wild during my day job. The beacons often show up as service persistence during incidents or during other post-exploitation activity. If you want to follow along at home, the sample I'm using is here: | ||