Get to know # Or Chechik Sr. Security Researcher at Palo Alto Networks *** ** * ** *** Blogs by Or Chechik Sort By: Recent Recent Popular *** ** * ** *** [![A Deep Dive Into Malicious Direct Syscall Detection](https://www.paloaltonetworks.com.au/blog/wp-content/uploads/2024/02/Collaborate-3.jpg)](https://www.paloaltonetworks.com.au/blog/security-operations/a-deep-dive-into-malicious-direct-syscall-detection/) ## [Must-Read Articles](https://www.paloaltonetworks.com/blog/security-operations/category/must-read-articles/?ts=markdown), [Non classifié(e)](https://www.paloaltonetworks.com/blog/category/non-classifiee/?lang=de&ts=markdown), [Product Features](https://www.paloaltonetworks.com/blog/security-operations/category/product-features/?ts=markdown) ### [A Deep Dive Into Malicious Direct Syscall Detection](https://www.paloaltonetworks.com.au/blog/security-operations/a-deep-dive-into-malicious-direct-syscall-detection/) This blog explains how attackers use direct syscalls to overcome most EDR solutions, by first discussing the conventional Windows syscall flow and how most EDR solutions monitor those calls. Feb 13, 2024 By [Or Chechik](https://www.paloaltonetworks.com/blog/author/or-chechik/?ts=markdown "Posts by Or Chechik") and [Ofir Ozer](https://www.paloaltonetworks.com/blog/author/ofir-ozer/?ts=markdown "Posts by Ofir Ozer") *** ** * ** *** [![Cortex XDR Blocks Undiscovered UAC Bypasses](https://www.paloaltonetworks.com.au/blog/wp-content/uploads/2020/05/Hunter.png)](https://www.paloaltonetworks.com.au/blog/security-operations/cortex-xdr-blocks-undiscovered-uac-bypasses/) ## [News and Events](https://www.paloaltonetworks.com/blog/security-operations/category/news-and-events/?ts=markdown), [Product Features](https://www.paloaltonetworks.com/blog/security-operations/category/product-features/?ts=markdown) ### [Cortex XDR Blocks Undiscovered UAC Bypasses](https://www.paloaltonetworks.com.au/blog/security-operations/cortex-xdr-blocks-undiscovered-uac-bypasses/) Cortex XDR researchers recently found new UAC (User Account Control) bypasses on a fully patched Windows 10. While the method used is not new, the abused binaries that can be used with ... Oct 15, 2020 By [Or Chechik](https://www.paloaltonetworks.com/blog/author/or-chechik/?ts=markdown "Posts by Or Chechik") *** ** * ** *** *** ** * ** *** Blogs by Or Chechik Sort By: Popular Popular Recent *** ** * ** *** [![Cortex XDR Blocks Undiscovered UAC Bypasses](https://www.paloaltonetworks.com.au/blog/wp-content/uploads/2020/05/Hunter.png)](https://www.paloaltonetworks.com.au/blog/security-operations/cortex-xdr-blocks-undiscovered-uac-bypasses/) ## [News and Events](https://www.paloaltonetworks.com/blog/security-operations/category/news-and-events/?ts=markdown), [Product Features](https://www.paloaltonetworks.com/blog/security-operations/category/product-features/?ts=markdown) ### [Cortex XDR Blocks Undiscovered UAC Bypasses](https://www.paloaltonetworks.com.au/blog/security-operations/cortex-xdr-blocks-undiscovered-uac-bypasses/) Cortex XDR researchers recently found new UAC (User Account Control) bypasses on a fully patched Windows 10. While the method used is not new, the abused binaries that can be used with ... Oct 15, 2020 By [Or Chechik](https://www.paloaltonetworks.com/blog/author/or-chechik/?ts=markdown "Posts by Or Chechik") *** ** * ** *** [![A Deep Dive Into Malicious Direct Syscall Detection](https://www.paloaltonetworks.com.au/blog/wp-content/uploads/2024/02/Collaborate-3.jpg)](https://www.paloaltonetworks.com.au/blog/security-operations/a-deep-dive-into-malicious-direct-syscall-detection/) ## [Must-Read Articles](https://www.paloaltonetworks.com/blog/security-operations/category/must-read-articles/?ts=markdown), [Non classifié(e)](https://www.paloaltonetworks.com/blog/category/non-classifiee/?lang=de&ts=markdown), [Product Features](https://www.paloaltonetworks.com/blog/security-operations/category/product-features/?ts=markdown) ### [A Deep Dive Into Malicious Direct Syscall Detection](https://www.paloaltonetworks.com.au/blog/security-operations/a-deep-dive-into-malicious-direct-syscall-detection/) This blog explains how attackers use direct syscalls to overcome most EDR solutions, by first discussing the conventional Windows syscall flow and how most EDR solutions monitor those calls. Feb 13, 2024 By [Or Chechik](https://www.paloaltonetworks.com/blog/author/or-chechik/?ts=markdown "Posts by Or Chechik") and [Ofir Ozer](https://www.paloaltonetworks.com/blog/author/ofir-ozer/?ts=markdown "Posts by Ofir Ozer") *** ** * ** *** {#footer} {#footer} ## Products and Services * [AI-Powered Network Security Platform](https://www.paloaltonetworks.com/network-security?ts=markdown) * [Secure AI by Design](https://www.paloaltonetworks.com/precision-ai-security/secure-ai-by-design?ts=markdown) * [Prisma AIRS](https://www.paloaltonetworks.com/prisma/prisma-ai-runtime-security?ts=markdown) * [AI Access Security](https://www.paloaltonetworks.com/sase/ai-access-security?ts=markdown) * [Cloud Delivered Security Services](https://www.paloaltonetworks.com/network-security/security-subscriptions?ts=markdown) * [Advanced Threat Prevention](https://www.paloaltonetworks.com/network-security/advanced-threat-prevention?ts=markdown) * [Advanced URL 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