Breach Prevention Blog

Fileless malware is a type of a malicious code execution technique that operates completely within process memory; no files are dropped onto the disk. Without any artifacts on the hard drive to detect, these attacks easily evade most security...

July has been a busy month for the distributors of GandCrab ransomware. After about two months with no major update, the cybercrime gang behind GandCrab released version 4, and a few days later, version 4.1. The primary delivery method is via...

A new highly sophisticated botnet incorporating numerous malicious, evasive techniques is quickly spreading its tentacles. Dubbed MyloBot, the botnet uses an usually complex chain attack and combines multiple anti-analysis techniques to make it...

On the 12th of April, Morphisec, identified and prevented a major wave of malspam purporting to be from HSBC Bank. The phishing campaign targeted several industrial manufacturing and service enterprises in Asia, using standard but still often...

These days, most malware employs a long attack chain with anti-analysis techniques to make it more difficult to detect the payload and harder to analyze by security researchers. More and more frequently, they are also incorporating coin miners...

GandCrab Ransomware

Here is a look at GandCrab ransomware and some techniques it uses to evade detection and analysis. These days, most malware employs long-chain attack and anti-analysis techniques to make it more difficult to detect the...

Towards the end of 2017, a group of researchers at Embedi discovered a Microsoft Office vulnerability that’s been quietly putting systems in danger for about 17 years.

RokRAT is a sophisticated Remote Access Trojan (RAT) that is skilled at evading detection and uses multiple techniques to make analysis difficult. The current RokRAT campaign was identified by Cisco Talos in November. The earliest known RokRAT...

Ransomware remained a major cybersecurity threat in 2017, leaving a trail of victims across all industries, company sizes and geographical borders. Phishing emails are the top ransomware delivery mechanism and they grow in number and...

Packer-based malware is malware which is modified in the runtime memory using different and sophisticated compression techniques. Such malware is hard to detect by known malware scanners and anti-virus solutions. In addition, it is a cheap way...