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lwn.net | ||
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prog.world
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| | | | | [AI summary] The article discusses the use of Intel Processor Trace (PT) technology to capture code traces from the System Management Mode (SMM) in a computer's BIOS. The authors detail the process of creating a backdoor to access SMM, modifying the SMI dispatcher to redirect execution to a custom shellcode, and using tools like WinIPT and ptxed to analyze the trace data. They also mention challenges such as synchronization issues and the need for cross-platform compatibility, and conclude that this method provides an efficient way to investigate SMM code for vulnerabilities. | |
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www.polarsignals.com
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| | | | | Deep dive into the new DWARF-based stack unwinder using eBPF. | |
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easyperf.net
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pub.gctl.io
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| | | XDP/eBPF IP-layer firewall in Rust! | ||
