CVE-2022-37977

CVE-2022-37977 is a Local Security Authority Subsystem Service (LSASS) Denial of Service vulnerability in Windows. CNVD’s description attributes the issue to a failure in properly handling incoming error messages, which could allow an attacker to trigger an application DoS. Multiple national advi...

CVE-2022-37977 Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

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Detecting and preventing LSASS credential dumping attacks

Obtaining user operating system OS credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral movement. One techniqu...

Detecting and preventing LSASS credential dumping attacks

Obtaining user operating system OS credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral movement. One techniqu...

Detecting and preventing LSASS credential dumping attacks

Obtaining user operating system OS credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral movement. One techniqu...

Detecting and preventing LSASS credential dumping attacks

Obtaining user operating system OS credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral movement. One techniqu...

September 20, 2022—KB5017379 (OS Build 17763.3469) Preview

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May 10, 2022—KB5013952 (OS Build 14393.5125) - EXPIRED

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DuplicateDump - Dumping LSASS With A Duplicated Handle From Custom LSA Plugin

DuplicateDump is a fork of MirrorDump with following modifications: DInovke implementation LSA plugin DLL written in C++ which could be clean up after dumping LSASS. MirrorDump compile LSA plugin as .NET assembly which would not be unloaded by LSASS process. That's why MirrorDump failed to delete...

Nanodump - A Crappy LSASS Dumper With No ASCII Art

A flexible tool that creates a minidump of the LSASS process. 1. Features It uses syscalls with SysWhispers2 for most operations. Syscalls are called from an ntdll address to bypass some syscall detections. It sets the syscall callback hook to NULL. Windows APIs are called using dynamic invoke...

EDRSandblast - Tool That Weaponize A Vulnerable Signed Driver To Bypass EDR Detections And LSASS Protections

EDRSandBlast is a tool written in C that weaponize a vulnerable signed driver to bypass EDR detections Kernel callbacks and ETW TI provider and LSASS protections. Multiple userland unhooking techniques are also implemented to evade userland monitoring. As of release, combination of userland...

CVE-2022-24487

Windows Local Security Authority Subsystem Service LSASS Remote Code Execution Vulnerability...

January 25, 2022—KB5009616 (OS Build 17763.2510) Preview

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APT ‘Aquatic Panda’ Targets Universities with Log4Shell Exploit Tools

Cyber criminals, under the moniker Aquatic Panda, are the latest advanced persistent threat group APT to exploit the Log4Shell vulnerability. Researchers from CrowdStrike Falcon OverWatch recently disrupted the threat actors using Log4Shell exploit tools on a vulnerable VMware installation during...

HandleKatz - PIC Lsass Dumper Using Cloned Handles

This tool was implemented as part of our Brucon2021 conference talk and demonstrates the usage of cloned handles to Lsass in order to create an obfuscated memory dump of the same. It compiles down to an executable living fully in its text segment. Thus, the extracted .text segment of the PE file ...

September 21, 2021—KB5005625 (OS Build 17763.2210) Preview

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Aggrokatz - An Aggressor Plugin Extension For Cobalt Strike Which Enables Pypykatz To Interface With The Beacons Remotely

aggrokatz is an Aggressor plugin extension for CobaltStrike which enables pypykatz to interface with the beacons remotely. The current version of aggrokatz allows pypykatz to parse LSASS dump files and Registry hive files to extract credentials and other secrets stored without downloading the fil...

SUPERNOVA malware discovered on SolarWinds Orion server

The Cybersecurity and Infrastructure Security Agency CISA has reported finding the SUPERNOVA web shell collecting credentials on a SolarWinds Orion server. These observations were made during an incident response to an Advanced Persistent Threat APT actor’s year-long compromise of an enterprise...

Dumping LSASS in memory undetected using MirrorDump

Introduction As I am sure some of you are aware from the occasional ramblings and screenshots on twitter, I am a big fan of .NET based offensive tooling. Not because it’s trendy or cool, but because of the development speed and ease of testing and debugging in comparison to C/C++. A month or so a...

WdToggle - A Beacon Object File (BOF) For Cobalt Strike Which Uses Direct System Calls To Enable WDigest Credential Caching

A Proof of Concept Cobalt Strike Beacon Object File which uses direct system calls to enable WDigest credential caching and circumvent Credential Guard if enabled. Additional guidance can be found in this blog post: https://outflank.nl/blog/?p=1592 Background This PoC code is based on the followi...