UPDATE: Cuckoo Sandbox 2.0.4

PenTestIT RSS Feed My previous post was about this open source, malware analysis automation framework - Cuckoo Sandbox 2.0.0. This post however, is about an update made to the framework. We now have Cuckoo Sandbox 2.0.4 which include a number of important improvements simplifying and improving yo...

Design/Logic Flaw

Blue Coat Malware Analysis Appliance MAA before 4.2.5 and Malware Analyzer G2 allow remote attackers to bypass a virtual machine protection mechanism and consequently write to arbitrary files, cause a denial of service host reboot or reset to factory defaults, or execute arbitrary code via vector...

CVE-2015-4523

The CVE-2015-4523 issue affects the Blue Coat Malware Analysis Appliance (MAA) and Malware Analyzer G2. A vulnerability allows a VM-escaped sample to bypass VM protections and write to the host file system, potentially overwriting files and causing a reboot or factory reset; in some cases it coul...

US Government Site Was Hosting Ransomware

As recently as Wednesday afternoon, a U.S. government website was hosting a malicious JavaScript downloader that led victims to installations of Cerber ransomware. Researcher Ankit Anubhav of NewSky Security tweeted the discovery Wednesday, and within hours, the malware link was taken down. It’s...

Locky ransomware adds anti sandbox feature (updated)

By Marcelo Rivero and Jérôme Segura The Locky ransomware has been very active since its return which we documented in a previous blog post. There are several different Locky campaigns going on at the same time, the largest being the one from affiliate ID 3 which comes with malicious ZIP containin...

Announcing the Fourth Annual Flare-On Challenge

The fourth annual Flare-On Challenge – the FireEye Labs Advanced Reverse Engineering FLARE team’s yearly reverse engineering contest – is scheduled to kick off on Sept. 1, 2017, at 8pm ET. This is a CTF-style challenge for all active and aspiring reverse engineers, malware analysts, and security...

The Windows Malware Analysis Distribution: flare-vm

FLARE VM is a freely available and open sourced Windows-based security distribution designed for reverse engineers, malware analysts, incident responders, forensicators, and penetration testers. Inspired by open-source Linux-based security distributions like Kali Linux, REMnux and others, FLARE V...

FLARE VM: The Windows Malware Analysis Distribution You’ve Always Needed!

UPDATE 2 Nov. 14, 2018: FLARE VM now has a new installation, upgrade, and uninstallation process, and also includes many new tools such as IDA 7.0, radare and YARA. UPDATE April 26, 2018: The web installer method to deploy FLARE VM is now deprecated. Please refer to the README on the FLARE VM...

FLARE VM: The Windows Malware Analysis Distribution You’ve Always Needed!

As a reverse engineer on the FLARE Team I rely on a customized Virtual Machine VM to perform malware analysis. The Virtual Machine is a Windows installation with numerous tweaks and tools to aid my analysis. Unfortunately trying to maintain a custom VM like this is very laborious: tools frequentl...

No Free Pass for ExPetr

Recently, there have been discussions around the topic that if our product is installed, ExPetr malware won't write the special malicious code which encrypts the MFT to MBR. Some have even speculated that some kind of conspiracy might be ongoing. Others have pointed out it's plain and simple...

Introducing Linux Support for FakeNet-NG: FLARE’s Next Generation Dynamic Network Analysis Tool

Introduction In 2016, FLARE introduced FakeNet-NG, an open-source network analysis tool written in Python. FakeNet-NG allows security analysts to observe and interact with network applications using standard or custom protocols on a single Windows host, which is especially useful for malware...

EternalPetya – yet another stolen piece in the package?

Since June 27th we have been investigating the outbreak of the new Petya-like malware armed with an infector similar to WannaCry. Since day one, various contradicting theories started popping up. Some believed that this malware is a rip-off of the original Petya, while others think that it is...

CVE-2017-9778

GNU Debugger GDB 8.0 and earlier fails to detect a negative length field in a DWARF section. A malformed section in an ELF binary or a core file can cause GDB to repeatedly allocate memory until a process limit is reached. This can, for example, impede efforts to analyze malware with GDB...

Design/Logic Flaw

GNU Debugger GDB 8.0 and earlier fails to detect a negative length field in a DWARF section. A malformed section in an ELF binary or a core file can cause GDB to repeatedly allocate memory until a process limit is reached. This can, for example, impede efforts to analyze malware with GDB...

CVE-2017-9778

GNU Debugger GDB 8.0 and earlier fails to detect a negative length field in a DWARF section. A malformed section in an ELF binary or a core file can cause GDB to repeatedly allocate memory until a process limit is reached. This can, for example, impede efforts to analyze malware with GDB...

CVE-2017-9778

GNU Debugger GDB 8.0 and earlier fails to detect a negative length field in a DWARF section. A malformed section in an ELF binary or a core file can cause GDB to repeatedly allocate memory until a process limit is reached. This can, for example, impede efforts to analyze malware with GDB...

CVE-2017-9778

CVE-2017-9778 affects GNU Debugger (GDB) 8.0 and earlier. A malformed DWARF/ELF section can cause GDB to repeatedly allocate memory, potentially exhausting process limits and hindering malware analysis. Connected sources confirm the vulnerability in GDB’s handling of DWARF sections in ELF binarie...

QuickSand.io - Tool For Scanning Streams Within Office Documents Plus Xor DB Attack

QuickSand is a compact C framework to analyze suspected malware documents to 1 identify exploits in streams of different encodings, 2 locate and extract embedded executables. By having the ability to locate embedded obfuscated executables, QuickSand could detect documents that contain zero-day or...

Malware Network Communication Provides Better Early Warning Signal

Research is expected to be unveiled today that challenges the industry’s current reliance on dynamic malware analysis as the best means of early detection of infections. Instead, researchers from the Georgia Institute of Technology, the IMDEA Software Institute and EURECOM posit that a better...

Visual Malware Analysis: ProcDOT

Visual Malware Analysis There are plenty of tools for behavioral malware analysis. The defacto standard ones, though, are Sysinternals’s Process Monitor also known as Procmon and PCAP generating network sniffers like Windump, Tcpdump, Wireshark, and the like. These “two” tools cover almost...