Vincent Yu

All posts by Vincent Yu

Vincent is a Cybersecurity Analyst at Barracuda. He's a security expert, working on our Blue Team within our Security Operations Center. Vincent supports our XDR service delivery and is highly skilled at analyzing security events to detect cyber threats, helping keep our partners and their customers protected.

Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: RomCom exploits vulnerabilities

Cybersecurity Threat Advisory: RomCom exploits vulnerabilities

Recent reports have uncovered that a threat actor known as RomCom has been exploiting two zero-day vulnerabilities, one in Mozilla Firefox and another in Microsoft Windows, to deploy their proprietary backdoor malware. These vulnerabilities, CVE-2024-9680 and CVE-2024-49039, have been actively...

/ November 28, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Critical Ivanti CSA flaw actively exploited

Cybersecurity Threat Advisory: Critical Ivanti CSA flaw actively exploited

Three Ivanti Cloud Service Appliance (CSA) vulnerabilities are being exploited and weaponized in the wild. Read this Cybersecurity Threat Advisory to learn how you can mitigate your risk of being targeted. What is the threat? The Ivanti CSA vulnerabilities, catalogued...

/ October 17, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: New critical vulnerability in Palo Alto Expedition

Cybersecurity Threat Advisory: New critical vulnerability in Palo Alto Expedition

A vulnerability identified as CVE-2024-5910, has been disclosed by Palo Alto. With a CVSS score of 9.3, this vulnerability can lead to authentication bypass, enabling attackers to manipulate network configurations and launch further attacks. Read this Cybersecurity Threat Advisory for...

/ October 11, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Cicada3301 ransomware variant

Cybersecurity Threat Advisory: Cicada3301 ransomware variant

A new ransomware variant has been found, known as Cicada3301. It exhibits similarities to the defunct BlackCat (ALPHV) operation, and it targets both Windows and Linux systems. Review the details in this Cybersecurity Threat Advisory to learn how this variant...

/ September 6, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: VMware ESXi vulnerability exploited by BlackByte ransomware

Cybersecurity Threat Advisory: VMware ESXi vulnerability exploited by BlackByte ransomware

BlackByte ransomware group is actively exploiting CVE-2024-37085, a recently patched authentication bypass vulnerability in VMware ESXi hypervisors. The exploitation of this flaw has led to the deployment of ransomware across victim networks. BlackByte ransomware group has marked it as a...

/ September 3, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Exploited Jenkins vulnerability

Cybersecurity Threat Advisory: Exploited Jenkins vulnerability

The Cybersecurity and Infrastructure Security Agency (CISA) has added a critical vulnerability found in Jenkins, identified as CVE-2024-23897 with a CVSS score of 9.8, to its Known Exploited Vulnerabilities (KEV) catalogue. This vulnerability is a path traversal flaw within the...

/ August 21, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: EDRKillShifter, a growing threat

Cybersecurity Threat Advisory: EDRKillShifter, a growing threat

A cybercrime group associated with the RansomHub ransomware has been observed using a newly developed tool named “EDRKillShifter” to disable endpoint detection and response (EDR) software on compromised systems. This tool is the latest in a growing list of EDR-killing...

/ August 17, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Cisco Smart Install vulnerability

Cybersecurity Threat Advisory: Cisco Smart Install vulnerability

There has been a surge in malicious cyber activities exploiting the Cisco Smart Install (SMI) legacy feature. This legacy feature if enabled by default on many Cisco devices, allowing threat actors to gain unauthorized access to network devices, allowing them...

/ August 13, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Critical Cisco vulnerability

Cybersecurity Threat Advisory: Critical Cisco vulnerability

Cisco has disclosed a critical vulnerability, CVE-2024-20419, that affects the Smart Software Manager On-Prem (SSM On-Prem). Successful exploitation of this flaw allows unauthenticated remote threat actors to change administrative passwords. Review the details in this Cybersecurity Threat Advisory to mitigate...

/ July 19, 2024
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: MOVEit Transfer vulnerability exploit

Cybersecurity Threat Advisory: MOVEit Transfer vulnerability exploit

Progress Software has released a patch for a high-severity vulnerability in MOVEit Transfer, identified as CVE-2024-5806. This vulnerability is currently under active attack and allows attackers to bypass authentication mechanisms. Organizations using MOVEit Transfer should review this Cybersecurity Threat Advisory...

/ June 28, 2024