First-Ever Ransomware Found Using 'Process Doppelgänging' Attack to Evade Detection

Security researchers have spotted the first-ever ransomware exploiting Process Doppelgänging, a new fileless code injection technique that could help malware evade detection. The Process Doppelgänging attack takes advantage of a built-in Windows function, i.e., NTFS Transactions, and an outdated...

SynAck targeted ransomware uses the Doppelgänging technique

The Process Doppelgänging technique was first presented in December 2017 at the BlackHat conference. Since the presentation several threat actors have started using this sophisticated technique in an attempt to bypass modern security solutions. In April 2018, we spotted the first ransomware...

Soldering for Reverse Engineering. Swapping out eSIMs with “normal” SIMs

Sometimes, the mobile devices we work on only have cellular data connections. In those instances, we’re usually pretty interested in trying things like this to get credentials for the APN so we can start snooping around on that. We’re also really interested in monitoring what kind of traffic is...

Malware monitor - leveraging PyREBox for malware analysis

This post was authored by Xabier Ugarte Pedrero In July 2017 we released PyREBox, a Python Scriptable Reverse Engineering Sandbox as an open source tool. This project is part of our continuous effort to create new tools to improve our workflows. PyREBox is a versatile instrumentation framework...

Encryption 101: decryption tool code walkthrough

We have reached the final installment of our Encryption 101 series. In the prior post, we walked through, in detail, the thought process while looking at the Princess Locker ransomware. We talked about the specific ways to narrow down the analysis toward the encryption portions, the weaknesses in...

Solving Ad-hoc Problems with Hex-Rays API

Introduction IDA Pro is the de facto standard when it comes to binary reverse engineering. Besides being a great disassembler and debugger, it is possible to extend it and include a powerful decompiler by purchasing an additional license from Hex-Rays. The ability to switch between disassembled a...

Apktool - A Tool For Reverse Engineering Android APK Files

A tool for reverse engineering 3rd party, closed, binary Android apps. It can decode resources to nearly original form and rebuild them after making some modifications. It also makes working with an app easier because of the project like file structure and automation of some repetitive tasks like...

Reverse Engineering the Cuban Sonic Weapon

Interesting analysis and speculation...

Python Scriptable Reverse Engineering Sandbox: PyREBox

PyREBox is a Python scriptable Reverse Engineering sandbox. It is based on QEMU, and its goal is to aid reverse engineering by providing dynamic analysis and debugging capabilities from a different perspective. PyREBox allows to inspect a running QEMU VM, modify its memory or registers, and to...

Disappearing bytes: Reverse engineering the MS Office RTF parser

Microsoft Office was a prime target for attacks in 2017. As well as the large number of vulnerabilities discovered and proof-of-concept exploits published, malware authors felt it necessary to prevent detection of 'one-day' and 'old-day' exploits by antivirus software. It also became clear that...

IDAsec - IDA plugin for reverse-engineering and dynamic interactions with the Binsec platform

IDA plugin for reverse-engineering and dynamic interactions with the Binsec platform Features Decoding an instruction in DBA IR Loading execution traces generated by Pinsec Triggering analyzes on Binsec and retrieving results Dependencies protobuf ZMQ capstone for trace disassembly graphviz to dr...

Debian: Security Advisory (DLA-1016-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

FLARE IDA Pro Script Series: Simplifying Graphs in IDA

Introduction We’re proud to release a new plug-in for IDA Pro users – SimplifyGraph – to help automate creation of groups of nodes in the IDA’s disassembly graph view. Code and binaries are available from the FireEye GitHub repo. Prior to this release we submitted it in the 2017 Hex-Rays plugin...

FLARE IDA Pro Script Series: Simplifying Graphs in IDA

Introduction We’re proud to release a new plug-in for IDA Pro users – SimplifyGraph – to help automate creation of groups of nodes in the IDA’s disassembly graph view. Code and binaries are available from the FireEye GitHub repo. Prior to this release we submitted it in the 2017 Hex-Rays plugin...

Reverse Engineering Android apk Files: Apktool

ApkTool is a tool for reverse engineering 3rd party, closed, binary Android apps. It can decode resources to nearly original form and rebuild them after making some modifications; it makes possible to debug smali code step by step. Also it makes working with app easier because of project-like fil...

Advance Android Malware Analysis Framework: Droidefense

Droidefense originally named atom: analysis through observation machine is the codename for android apps/malware analysis/reversing tool. It was built focused on security issues and tricks that malware researcher have on they every day work. For those situations on where the malware has...

Automatize Obfuscation and Generation of MS Office Documents: macro_pack

The macropack is a tool used to automatize obfuscation and generation of MS Office documents for pentest, demo, and social engineering assessments. The goal of macropack is to simplify antimalware solutions bypass and automatize the process from vba generation to final Office document generation...

Retargetable Machine-Code Decompiler: RetDec

RetDec is a retargetable machine-code decompiler based on LLVM . The decompiler is not limited to any particular target architecture, operating system, or executable file format: Supported file formats: ELF, PE, Mach-O, COFF, AR archive, Intel HEX, and raw machine code. Supported architectures 32...

Qt C++ radare2 GUI: Cutter

A Qt and C++ GUI for radare2 reverse engineering framework originally named Iaito. Cutter is not aimed at existing radare2 users. It instead focuses on those whose are not yet radare2 users because of the learning curve, because they don’t like CLI applications or because of the...

On "Advanced" Network Security Monitoring

My TaoSecurity News page says I taught 41 classes lasting a day or more, from 2002 to 2014. All of these involved some aspect of network security monitoring NSM. Many times students would ask me when I would create the "advanced" version of the class, usually in the course feedback. I could never...