Security Research | Page 2


The Loki Bot has been observed for years. As you may know, it is designed to steal credentials from installed software on a victim’s machine, such as email clients, browsers, FTP clients, file management clients, and so on. FortiGuard Labs recently captured a PDF sample that is used to spread a new Loki variant. In this blog, we will analyze how this new variant works and what it steals. The PDF sample Figure 1. Content of the PDF sample The PDF sample only contains one page, shown above, which includes some... [Read More]
by RSS Xiaopeng Zhang and Hua Liu  |  May 17, 2017  |  Filed in: Security Research
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WannaCry FAQ: How does WannaCry spread? WannaCry has multiple ways of spreading. Its primary method is to use the Backdoor.Double.Pulsar backdoor exploit tool released last March by the hacker group known as Shadow Brokers, and managed to infect thousands of Microsoft Windows computers in only a few weeks. Because DoublePulsar runs in kernel mode, it grants hackers a high level of control over the compromised computer system. [Read More]
by RSS Aamir Lakhani  |  May 17, 2017  |  Filed in: Security Research
Over the last few months or years I have reported vulnerabilities on several IoT devices. None have been patched so far, and I think it is time to discuss the situation openly. One of the issues I have faced several times is the zero-security-culture phenomenon. Some of those IoT companies were typically very small and young, with sadly neither the skills nor the resources to fix security issues. For example, I remember sending several vulnerabilities to a given company. I got an automated response for the first email (ok),... [Read More]
by RSS Axelle Apvrille  |  May 17, 2017  |  Filed in: Security Research
  Over the past few days WannaCry malicious malware variants affect hundreds of organizations across the world. This cyberattack spread primarily by exploiting a vulnerability whose manufacturer had issued a critical security update for over two months ago. While there are certainly reasons why it may take an organization some time to patch vulnerable systems, including the risk of updating live systems, two months should be plenty of time for any organization to take appropriate steps to secure their environment. With the recent malware... [Read More]
by RSS Phil Quade  |  May 16, 2017  |  Filed in: Security Research
On May 12th, 2017 the ransomware WannaCry disrupted hundreds of organizations in dozens of countries. The ransomware encrypts personal and critical documents and files and demands approximately $300 USD in BitCoin currency for the victim to unlock their files. [Read More]
by RSS Aamir Lakhani  |  May 15, 2017  |  Filed in: Security Research
The WannaCry malware was responsible for a massive infection beginning that affected organizations and systems around the world. FortiGuard Labs has been monitoring this malware carefully. We have provided an analysis of this attack, along with how to protect your organization here.  In this blog post I’ll briefly describe some of the distinct characteristics of each version of this malware, from beta to the latest 2.0 version, and share some interesting findings. Beta Version: We discovered this beta version around Feb 9th,... [Read More]
by RSS Kyle Yang  |  May 15, 2017  |  Filed in: Security Research
Ransomware has become the fastest growing malware threat, targeting everyone from home users to healthcare systems to corporate networks. Tracking analysis shows that there has been an average of more than 4,000 ransomware attacks every day since January 1, 2016. [Read More]
by RSS Aamir Lakhani  |  May 12, 2017  |  Filed in: Security Research
Tags: ransomware
A Windows 2003 RDP Zero Day Exploit In this blog, the FortiGuard team takes a look at Esteemaudit, which is an exploit that was included in the set of cybertools leaked by the hacker group known as "Shadow Brokers." They claim that they collected this set of cybertools from the compromised data of "Equation Group," a threat actor alleged to be tied to the United States National Security Agency (NSA). Esteemaudit is a Remote Desktop Protocol (RDP) exploit that targets Microsoft Windows Server 2003 / Windows XP. The vulnerability... [Read More]
by RSS Dehui Yin  |  May 11, 2017  |  Filed in: Security Research
Welcome back to our monthly review of some of the most interesting security research publications. Previous edition: March 2017 What happened to your home? IoT Hacking and Forensic with 0-day from TROOPERS 17, by Park and Jin Figure 1: Hacking a vacuum cleaner The authors hacked a vacuum cleaner, which, besides cleaning, also includes an embedded camera and microphone. The hack wasn’t easy because the vacuum wasn’t too badly secured. The authors however found 2 vectors: 1. They connected on the... [Read More]
by RSS Axelle Apvrille  |  May 10, 2017  |  Filed in: Security Research
This is the second part of FortiGuard Labs’ deep analysis of the new Emotet variant. In the first part of the analysis we demonstrated that by bypassing the server-side Anti-Debug or Anti-Analysis technique we could download three or four modules (.dll files) from the C&C server. In that first blog we only analyzed one module (I named it ‘module2’). In this blog, we’ll review how the other modules work. Here we go. [Read More]
by RSS Xiaopeng Zhang  |  May 09, 2017  |  Filed in: Security Research