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ENSILO BLOG
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Windows’ PsSetLoadImageNotifyRoutine Callbacks: the Good, the Bad and the Unclear (Part 2)
by
Omri Misgav, Security Researcher, enSilo on September 11, 2017 -
TL;DR: Security vendors and kernel developers beware – a programming error in the Windows kernel could prevent you from identifying which modules have been loaded at runtime. And the fix for it...
Windows’ PsSetLoadImageNotifyRoutine Callbacks: the Good, the Bad and the Unclear (Part 1)
by
Omri Misgav, Security Researcher, enSilo on September 05, 2017 -
TL;DR: Security vendors and kernel developers beware – a programming error in the Windows kernel could prevent you from identifying which modules have been loaded at runtime.
Windows environment variables can be used to run commands and can also be used to bypass UAC, allowing an attacker with limited privileges to take complete control of the system. This code...
TL;DR: We show AtomBombing modifications to enable us to inject code into CFG-protected processes.
TL;DR Here’s a new code injection technique, dubbed AtomBombing, which exploits Windows atom tables and Async Procedure Calls (APC). Currently, this technique goes undetected by common security...
Even though any process is provided with variables from its environment, they are often overlooked by users, developers and sometimes even the OS itself.
TL;DR: We found 6(!) different common security issues that stem from incorrect implementation of code hooking and injection techniques. These issues were found in more than 15 different products....
TL;DR Microsoft’s Control Flow Guard (CFG) is a security feature that prevents the abuse of indirect calls from calling addresses that are not marked as safe. CFG can cause problems for anyone...
Analyzing Furtim: Malware that Avoids Mass-Infection
by
Yotam Gottesman, Security Researcher, enSilo on May 16, 2016 -
Overview
Recently we came across a new malware strain, first discovered by @hFireF0X, and at point of discovery, it was not detected by any of the 56 anti-virus programs tested by VirusTotal...
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