What does it take to become a good reverse engineer?

How much money and effort does it take to become a good reverse engineer? Do you even need to be one? There are no universally acceptable answers to these questions. Software reverse engineering RE is not a science but a skillset combined with specific knowledge and backed by a lot of experience...

Thinking Outside the Bochs: Code Grafting to Unpack Malware in Emulation

This blog post continues the FLARE script series with a discussion of patching IDA Pro database files IDBs to interactively emulate code. While the fastest way to analyze or unpack malware is often to run it, malware won’t always successfully execute in a VM. I use IDA Pro’s Bochs integration in...

FakeNet Genie: Improving Dynamic Malware Analysis with Cheat Codes for FakeNet-NG

As developers of the network simulation tool FakeNet-NG, reverse engineers on the FireEye FLARE team, and malware analysis instructors, we get to see how different analysts use FakeNet-NG and the challenges they face. We have learned that FakeNet-NG provides many useful features and solutions of...

It’s Your Money and They Want It Now — The Cycle of Adversary Pursuit

When we discover new intrusions, we ask ourselves questions that will help us understand the totality of the activity set. How common is this activity? Is there anything unique or special about this malware or campaign? What is new and what is old in terms of TTPs or infrastructure? Is this being...

Cybersecurity Research During the Coronavirus Outbreak and After

Virus outbreaks are always gruesome: people, animals or computer systems get infected within a short time. Of course, viruses spreading across our physical world always take priority over the virtual world. Nevertheless, everyone should keep doing their job, which includes all kinds of malware...

North Korean Malicious Cyber Activity

The Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, and the Department of Defense DoD have identified the following malware variants used by the North Korean government. The U.S. Government refers to malicious cyber activity by the North Korean...

picoCTF-2019-writeups

The repository is a collection of write-ups for the picoCTF 2019 challenge. The write-ups cover various challenges, including general skills, web exploitation, and reverse engineering. The challenges involve solving problems such as decoding messages, exploiting vulnerabilities, and reversing...

CSI Evidence Indicators for Targeted Ransomware Attacks

ARCHIVED STORY CSI: Evidence Indicators for Targeted Ransomware Attacks – Part I By Trellix · Febraury 12, 2020 For many years now I have been working and teaching in the field of digital forensics, malware analysis and threat intelligence. During one of the classes we always talk about Lockard’s...

CSI Evidence Indicators for Targeted Ransomware Attacks

ARCHIVED STORY CSI: Evidence Indicators for Targeted Ransomware Attacks – Part I By Trellix · Febraury 12, 2020 For many years now I have been working and teaching in the field of digital forensics, malware analysis and threat intelligence. During one of the classes we always talk about Lockard’s...

Emotet Now Hacks Nearby Wi-Fi Networks to Spread Like a Worm

A newly uncovered Emotet malware sample has the ability to spread to insecure Wi-Fi networks that are located nearby to an infected device. If the malware can spread to these nearby Wi-Fi networks, it then attempts to infect devices connected to them — a tactic that can rapidly escalate Emotet’s...

RansomCoin - A DFIR Tool To Extract Cryptocoin Addresses And Other Indicators Of Compromise From Binaries

Extracting metadata and hardcoded Indicators of Compromise from ransomware, in a scalable, efficient, way with cuckoo integrations. Ideally, is it run during cuckoo dynamic analysis, but can also be used for static analysis on large collections of ransomware. Designed to be fast, with low false...

EulerOS 2.0 SP3 : gdb (EulerOS-SA-2019-2584)

According to the version of the gdb packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - 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...

Dexphot Malware Hijacks 80K+ Devices to Mine Cryptocurrency

Microsoft is warning of malware, Dexphot, that has infected more than 80,000 machines, sucking up their CPU power in order to mine cryptocurrency. Researchers first discovered Dexphot in October 2018 and saw its activity peak during July. They said that the malware has a complex attack chain and...

EulerOS 2.0 SP8 : gdb (EulerOS-SA-2019-2279)

According to the version of the gdb packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - 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...

Active C2 Discovery Using Protocol Emulation Part1 (HYDSEVEN NetWire)

Malware C2 addresses can be an important IOC to detect known threats. In order to obtain C2 information, we first need malware samples which are then analyzed dynamically or statically. However the analysis task is often times not straightforward. Increasingly anti-analysis methods are implemente...

VMware Carbon Black Cloud Adds Linux Support for Enterprise EDR

VMware Carbon Black is proud to unveil another major operating system expansion for our cloud-native endpoint protection platform EPP. CB ThreatHunter, our enterprise endpoint detection and response EDR solution on the VMware Carbon Black Cloud platform has expanded its support to include Red Hat...

North Korean Malicious Cyber Activity

The Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, and the Department of Defense DoD have identified a Trojan malware variant—referred to as HOPLIGHT—used by the North Korean government. The U.S. Government refers to malicious cyber activity by the...

Trend Micro Anti-Threat Toolkit 1.62.0.1218 - Remote Code Execution

Exploit Title: Trend Micro Anti-Threat Toolkit 1.62.0.1218 - Remote Code Execution Date: 2019-10-19 Exploit Author: hyp3rlinx Vendor Homepage: www.trendmicro.com Version: 1.62.0.1218 and below Tested on: Microsoft Windows CVE: N/A + Credits: John Page aka hyp3rlinx + Website:...

IDA, I Think It’s Time You And I Had a Talk: Controlling IDA Pro With Voice Control Software

Introduction This blog post is the next episode in the FireEye Labs Advanced Reverse Engineering FLARE team Script Series. Today, we are sharing something quite unusual. It is not a tool or a virtual machine distribution, nor is it a plugin or script for a popular reverse engineering tool or...

North Korean Malicious Cyber Activity

The Cybersecurity and Infrastructure Security Agency CISA and the Federal Bureau of Investigation FBI have identified two malware variants—referred to as ELECTRICFISH and BADCALL—used by the North Korean government. The U.S. Government refers to malicious cyber activity by the North Korean...