NET Framework Rootkits

he whitepaper .NET Framework rootkits - backdoors inside your framework.pdf covers various ways to develop rootkits for the .NET framework, so that every EXE/DLL that runs on a modified Framework will behave differently than what it's supposed to do. Code reviews will not detect backdoors installed inside the Framework since the payload is not in the code itself, but rather it is inside the Framework implementation. Writing Framework rootkits will enable the attacker to install a reverse shell inside the framework, to steal valuable information, to fixate encryption keys, disable security checks and to perform other nasty things as described in this paper.

This paper also introduces .NET-Sploit 1.0 - a new tool for building MSIL rootkits that will enable the user to inject preloaded/custom payload to the Framework core DLL.

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Vbootkit 2.0

Vbootkit 2.0 is now open-source

Two security researchers open-source code that can be used to take control of versions of the Microsoft Windows 7 x64 operating system. The team decided to release the code despite initial reservations over security.

Vbootkit 2.0 Attacking Windows 7 (x64) via Boot Sectors presentation

Download Vbootkit 2.0 source code 

Swimming into Trojan and Rootkit GameThief.Win32.Magania Hostile Code

rojan-GameThief.Win32.Magania, according to Kaspersky naming convention, monitors the user activities trying to obtain valuable information from the affected user, especially about gaming login accounts. This long tutorial analyze this malware but is also a general document which explains how to analyze a modern nested-dolls malware. 

In this paper we will analyse more deeply the structure of this malware, especially the polymorphic part that represents a typical sample of hostile code. Starting from the first load into IDA we can see that Megania's PE structure and Import Table destroyed, this is how looks from WinGraph:

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2009 Protecting OSs from RootKits

Countering Kernel Rootkits with Lightweight Hook Protection

Kernel rootkits have posed serious security threats due to their stealthy manner. To hide their presence and activities, many rootkits hijack control flows by modifying control data or hooks in the kernel space. A critical step towards eliminating rootkits is to protect such hooks from being hijacked. However, it remains a challenge because there exist a large number of widely-scattered kernel hooks and many of them could be dynamically allocated from kernel heap and co-located together with other kernel data. In addition, there is a lack of flexible commodity hardware support, leading to the socalled protection granularity gap kernel hook protection requires byte-level granularity but commodity hardware only provides pagelevel protection.

Source: Schneier on Security

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Stoned Bootkit

 The Stoned Bootkit is a rootkit that is booted before the main operating system has, and is able to stay and hide itself in memory during execution of the guest operating system. The payload is executed beside the running operating system and comes with the bootkit. Stoned is designed to be operating system independent, it is multiplatform. It currently supports all 32-bit and 64-bit Windows systems and Linux.

It allows a very wide abstraction of the program and the running base, this means it is a new deployment platform of software. The current proof of concept payloads are a local privilege escalation and a remote surveillance tool. The platform, however is open for third-party future development.

The bootkit itself has an integrated module and plugin structure which allows extending its core features without touching the core code. New in this version is that it is totally independent from media, it can be started from hard disk (master boot record), but also CD/DVD/BD or even over the network.

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Tuluka kernel inspector v1.0.394.77

Tuluka is a new powerful AntiRootkit, which has the following features:




Detects hidden processes, drivers and devices
Detects IRP hooks
Identifies the substitution of certain fields in DRIVER_OBJECT structure
Checks driver signatures
Detects and restores SSDT hooks
Detects suspicious descriptors in GDT
IDT hook detection
SYSENTER hook detection
Displays list of system threads and allows you to suspend them
IAT and Inline hook detection
and much more ...

Download: http://www.tuluka.org

More Info: http://www.rootkit.commuch more...