Results for malware analysis

Threat Research

GandCrab v4.1 Ransomware and the Speculated SMB Exploit Spreader

Only two days after the release of GandCrab 4.0, FortiGuard Labs found a newer version (v4.1) being distributed using the same method, which is through compromised websites disguised as download sites for cracked applications.

By Joie SalvioJuly 12, 2018

Threat Research

Dreambot 2017 vs. ISFB 2013

We recently received a malware sample recently that had been packed and compiled on Tue Feb 06 2018. After unpacking it, we found that it contained a version of the Dreambot/Ursnif trojan, which had a compilation date of Tue Oct 10 2017, suggesting that existing versions of Dreambot are now being packaged with brand-new droppers.

By Jerome CruzMarch 16, 2018

Industry Trends

Black Nurse DDoS Attack: Power of Granular Packet Inspection of FortiDDoS with Unpredictable DDoS Attacks

A well-known aspect of criminals in any space is that they are unpredictable. They look for holes and vulnerabilities in systems and try to use them to their advantage. Security systems, therefore, have to be architected in a way that assumes attack unpredictability. A new threat emerging on the horizon is called BlackNurse DDoS attack. Fortinet protects organizations against this content based protection, with the IPS signature  "BlackNurse.ICMP.Type.3.Code.3.Flood.DoS", as well as with behavior-based protection through our FortiDDoS...

By Hemant JainNovember 14, 2016

Industry Trends

IoT-based Linux/Mirai: Frequently Asked Questions

Ever since the Mirai DDoS attack was launched a few weeks ago, we have received a number of questions that I will try to answer here. If you have more follow-up questions, please let me know! Who is the Author of Mirai? The presumed developer goes under the pseudonym of 'Anna Senpai' on Hackforums - an English-speaking hacker forum. His/her account on the forum is recent (July 2016). and was probably created when he/she started working on Mirai. For example: July 10 - Begins "killing QBots" August...

By Axelle ApvrilleOctober 31, 2016

Industry Trends

So You Want to Be a (Ethical) Hacker?

The news is inescapable. Hackers and their nefarious counterparts have been thrust into popular culture, not just in the form of fictional characters like Mr. Robot (see our thoughts on season 1), but in the form of very real individuals and organizations that are responsible for everything from the sophisticated take down of nuclear enrichment facilities to the humiliation of major media organizations. It all sounds terrifying, I know. Which is why I asked some of our very own researchers and analysts to help us separate fact from fiction. In this...

By Michael Chalmandrier-PernaOctober 04, 2016