During an investigation of a malware campaign, I discovered that multiple emails were bypassing a specific email security system. Interestingly, there were no bypass techniques used. Instead, the flood of spear-phishing emails made the email security system allow some of the emails, at which point I began my research on Microsoft Outlook. The issue in this case was that the specially crafted malicious link parsing on the security system was weak.

The Trustwave Threat Hunting team has authored a practical guide to help the cybersecurity community address the Linux “polkit” Local Privilege Escalation vulnerability (CVE-2021-4034) by identifying common behavior in exploitation.

Trustwave security and engineering teams became aware of the vulnerability in Polkit's pkexec component identified as CVE-2021-4034 (PwnKit) on January 25. We immediately investigated the vulnerability and potential exploits and continue to actively monitor the situation for our clients. Check your distribution for specific patches. As part of a strong patch management program, ensuring your infrastructure and applications are up to date is critical for mitigating cyber risk..

In the wake of the takedown of the REvil/Sodinokibi ransomware gang by the Russian Federal Security Service (FSB) on January 14, Eastern-European cybercriminals are feeling the ground shake. In the days following the FSB action, Trustwave SpiderLabs researchers have analyzed a slew of Dark Web chatter and have found that this potential new world is breeding fear in that community.

There are truisms that span history. One truism is that a single mistake can lead to disaster, and to some extent the series of vulnerabilities affecting the organizations that use Apache Log4j.

Reuters reported on Friday that the Russian Federal Security Service (FSB) and local police launched a series of raids against members of the REvil/Sodinokibi ransomware gang at the request of the United States. More than a dozen arrests were made with millions in cash and goods being confiscated by authorities. This unprecedented action from the Russian Federal Security Service aligns with the fear that we've observed while conducting cybercriminal chatter reconnaissance on the Dark Web.

Organizations across industries are increasingly concerned about their cybersecurity posture and overall ransomware preparedness – and rightfully so – with the 64% increase in attacks from 2019 to 2020 (304 million attacks worldwide in 2020). We have also seen a 2x increase in demand for ransomware preparedness assessments and exercises.