GuLoader | Breaking Cybersecurity News | The Hacker News

Threat hunters have unmasked the latest tricks adopted by a malware strain called  GuLoader  in an effort to make analysis more challenging. "While GuLoader's core functionality hasn't changed drastically over the past few years, these constant updates in their obfuscation techniques make analyzing GuLoader a time-consuming and resource-intensive process," Elastic Security Labs researcher Daniel Stepanic  said  in a report published this week. First spotted in late 2019, GuLoader (aka CloudEyE) is an advanced shellcode-based malware downloader that's used to distribute a wide range of payloads, such as information stealers, while incorporating a bevy of sophisticated anti-analysis techniques to dodge traditional security solutions. A  steady stream  of  open-source reporting  into the malware in recent months has revealed the threat actors behind it have continued to improve its ability to bypass existing or new security features alongside other implemented fe

E-commerce industries in South Korea and the U.S. are at the receiving end of an ongoing GuLoader malware campaign, cybersecurity firm Trellix disclosed late last month. The malspam activity is notable for transitioning away from malware-laced Microsoft Word documents to NSIS executable files for loading the malware. Other countries targeted as part of the campaign include Germany, Saudi Arabia, Taiwan and Japan. NSIS , short for Nullsoft Scriptable Install System, is a script-driven open source tool used to develop installers for the Windows operating system. While attack chains in 2021 leveraged a ZIP archive containing a macro-laced Word document to drop an executable file tasked with loading GuLoader, the new phishing wave employs NSIS files embedded within ZIP or ISO images to activate the infection. "Embedding malicious executable files in archives and images can help threat actors evade detection," Trellix researcher Nico Paulo Yturriaga  said . Over the cours

As a vCISO, you are responsible for your client's cybersecurity strategy and risk governance. This incorporates multiple disciplines, from research to execution to reporting. Recently, we published a comprehensive playbook for vCISOs, "Your First 100 Days as a vCISO – 5 Steps to Success" , which covers all the phases entailed in launching a successful vCISO engagement, along with recommended actions to take, and step-by-step examples.  Following the success of the playbook and the requests that have come in from the MSP/MSSP community, we decided to drill down into specific parts of vCISO reporting and provide more color and examples. In this article, we focus on how to create compelling narratives within a report, which has a significant impact on the overall MSP/MSSP value proposition.  This article brings the highlights of a recent guided workshop we held, covering what makes a successful report and how it can be used to enhance engagement with your cyber security clients.