Programming/Research @MDSecLabs

Joined May 2020
Shellcode: Recycling Compression Algorithms for the Z80, 8088, 6502, 8086, and 68K Architectures. modexp.wordpress.com/2020/05…
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Published another old(er) blog post: A Windows Authorization Guide csandker.io/2018/06/14/AWind… This one covers the Windows Authorization process In and Out, from Basic Access checks to Primary & Impersonation Tokens... Including this tricky PtH question (see screenshot below):
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I added DoH (DNS over HTTP) capability to DNSExfiltrator. Google experimental DoH servers are hardcoded for now, but it can be easily changed. Watch all you data leak channels ! :-) github.com/Arno0x/DNSExfiltr…
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Released v1.1.30 of NtObjectManager to the PS gallery. Main addition is the support for named pipe RPC clients. Also updated the NuGet packages, they now contain multi-target (no more "Core" versions) as well as full symbols and source link support. powershellgallery.com/packag…
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Having discovered various issues with Windows mini-filter drivers lately I found public information about how to analyze such drivers for security issues somewhat lacking. Therefore today I've put out a blog post to try and fix that glitch :-) googleprojectzero.blogspot.c…
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Along with @SeeedStudio and StarFive, @BeagleBoardOrg just announced BeagleV™—an affordable 64-bit multicore @RISC_V credit-card sized computer designed to run @LinuxFoundation #Linux. Discover more at BeagleV.org.
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Hello! Here are some links related to our talk about RISC-V Scalar Crypto. The main repo with everything: github.com/riscv/riscv-crypt… Latest spec: github.com/riscv/riscv-crypt… (T)CHES 2021 paper on AES: doi.org/10.46586/tches.v2021… ASHES 2020 paper on Entropy Sources: ia.cr/2020/866
Markku-Juhani Saarinen (@mjos_crypto) will be presenting at @RealWorldCrypto on the #RISCV Cryptography Extension alongside @notacademic. Watch along by registering: rwc.iacr.org/2021/
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