Government-backed actors exploiting WinRAR vulnerability

In recent weeks, Google’s Threat Analysis Group’s (TAG) has observed multiple government-backed hacking groups exploiting the known vulnerability, CVE-2023-38831, in WinRAR, which is a popular file archiver tool for Windows. Cybercrime groups began exploiting the vulnerability in early 2023, when Read More …

Updated MATA attacks industrial companies in Eastern Europe

In early September 2022, Kaspersky researchers discovered several new malware samples belonging to the MATA cluster. As they were collecting and analyzing the relevant telemetry data, they realized the campaign had been launched in mid-August 2022 and targeted over a Read More …

Remediation for Citrix NetScaler ADC and Gateway Vulnerability (CVE-2023-4966)

On Oct. 10, 2023, Citrix released a security bulletin for a sensitive information disclosure vulnerability (CVE-2023-4966) impacting NetScaler ADC and NetScaler Gateway appliances. Mandiant has identified zero-day exploitation of this vulnerability in the wild beginning in late August 2023. Successful Read More …

Update now! Atlassian Confluence vulnerability is being actively exploited

Microsoft Threat Intelligence has revealed that it has been tracking the active exploitation of a vulnerability in Atlassian Confluence software since September 14, 2023. At the time the attacks were first observed the vulnerability was a zero-day, meaning that no Read More …

10 zero-day vulnerabilities in industrial cell router could lead to code execution, buffer overflows

Cisco Talos recently disclosed 11 vulnerabilities, 10 of which are zero-days without a patch in an industrial cellular router. Attackers could exploit these vulnerabilities in the Yifan YF325 to carry out a variety of attacks, in some cases gaining the Read More …

CISA catalog passes 1,000 known-to-be-exploited vulnerabilities. Celebration time, or is it?

On September 18, 2023, the Cybersecurity & Infrastructure Security Agency (CISA) announced that its Known Exploited Vulnerabilities (KEV) catalog has reached the milestone of covering more than 1,000 vulnerabilities since its launch in November 2021. This may seem like a Read More …

How it works: The novel HTTP/2 ‘Rapid Reset’ DDoS attack

A number of Google services and Cloud customers have been targeted with a novel HTTP/2-based DDoS attack which peaked in August. These attacks were significantly larger than any previously-reported Layer 7 attacks, with the largest attack surpassing 398 million requests Read More …

IZ1H9 Campaign Enhances Its Arsenal with Scores of Exploits

In September 2023, our FortiGuard Labs team observed that the IZ1H9 Mirai-based DDoS campaign has aggressively updated its arsenal of exploits. Thirteen payloads were included in this variant, including D-Link devices, Netis wireless router, Sunhillo SureLine, Geutebruck IP camera, Yealink Read More …