Gamaredon: The Turncoat Spies Relentlessly Hacking Ukraine

For the past decade, this group of FSB hackers—including “traitor” Ukrainian intelligence officers—has used a grinding barrage of intrusion campaigns to make life hell for their former countrymen and cybersecurity defenders...

OPSEC Failure Exposes Coquettte's Malware Campaigns on Bulletproof Hosting Servers

A novice cybercrime actor has been observed leveraging the services of a Russian bulletproof hosting BPH provider called Proton66 to facilitate their operations. The findings come from DomainTools, which detected the activity after it discovered a phony website named cybersecureprotect.com hosted...

Threat actors leverage tax season to deploy tax-themed phishing campaigns

As Tax Day approaches in the United States on April 15, Microsoft has observed several phishing campaigns using tax-related themes for social engineering to steal credentials and deploy malware. These campaigns notably use redirection methods such as URL shorteners and QR codes contained in...

QR codes sent in attachments are the new favorite for phishers

Recently we’ve been seeing quite a few phishing campaigns using QR codes in email attachments. The lure and the targets are varied, but the use of a QR code to get someone to visit the phishing site is fast becoming a preferred method for cybercriminals. There are several reasons why cybercrimina...

FIN7 Deploys Anubis Backdoor to Hijack Windows Systems via Compromised SharePoint Sites

The financially motivated threat actor known as FIN7 has been linked to a Python-based backdoor called Anubis not to be confused with an Android banking trojan of the same name that can grant them remote access to compromised Windows systems. "This malware allows attackers to execute remote shell...

Semrush impersonation scam hits Google Ads

This blog post was co-authored with Elie Berreby, Senior SEO Strategist Criminals are highly interested in online marketing and advertising tools that they can leverage as part of their ongoing malware campaigns. In particular, we have previously detailed how Google advertiser accounts can be...

ZDI-CAN-25373: Windows Shortcut Exploit Abused as Zero-Day in Widespread APT Campaigns

Trend Zero Day Initiative™ ZDI uncovered both state-sponsored and cybercriminal groups extensively exploiting ZDI-CAN-25373 aka ZDI-25-148, a Windows .lnk file vulnerability that enables hidden command execution...

⚡ THN Weekly Recap: Router Hacks, PyPI Attacks, New Ransomware Decryptor, and More

From sophisticated nation-state campaigns to stealthy malware lurking in unexpected places, this week's cybersecurity landscape is a reminder that attackers are always evolving. Advanced threat groups are exploiting outdated hardware, abusing legitimate tools for financial fraud, and finding new...

CISA and Partners Release Cybersecurity Advisory on Medusa Ransomware

Today, CISA—in partnership with the Federal Bureau of Investigation FBI and Multi-State Information Sharing and Analysis Center MS-ISAC—released joint Cybersecurity Advisory, StopRansomware: Medusa Ransomware. This advisory provides tactics, techniques, and procedures TTPs, indicators of compromi...

Blind Eagle Hacks Colombian Institutions Using NTLM Flaw, RATs and GitHub-Based Attacks

The threat actor known as Blind Eagle has been linked to a series of ongoing campaigns targeting Colombian institutions and government entities since November 2024. "The monitored campaigns targeted Colombian judicial institutions and other government or private organizations, with high infection...

PT-2025-10806

Name of the Vulnerable Software and Affected Versions Microsoft Windows versions prior to March 11, 2025 Description External control of file names or paths in the Windows NTLM NT LAN Manager protocol allows an unauthorized attacker to perform spoofing over a network. This issue, specifically...

EncryptHub Deploys Ransomware and Stealer via Trojanized Apps, PPI Services, and Phishing

The financially motivated threat actor known as EncryptHub has been observed orchestrating sophisticated phishing campaigns to deploy information stealers and ransomware, while also working on a new product called EncryptRAT. "EncryptHub has been observed targeting users of popular applications, ...

Your item has sold! Avoiding scams targeting online sellers

There are many risks associated with selling items on online marketplaces that individuals and organizations should be aware of when conducting business on these platforms. Many of the general recommendations related to the use of these platforms are tailored towards purchasing items; however,...

5 Active Malware Campaigns in Q1 2025

The first quarter of 2025 has been a battlefield in the world of cybersecurity. Cybercriminals continued launching aggressive new campaigns and refining their attack methods. Below is an overview of five notable malware families, accompanied by analyses conducted in controlled environments...

Exploit for Protection Mechanism Failure in 7-Zip

CVE-2025-0411: 7-Zip MoTW Bypass Vulnerability Introductio...

20 million OpenAI accounts offered for sale

A cybercriminal acting under the moniker “emirking” offered 20 million OpenAI user login credentials this week, sharing what appeared to be samples of the stolen data itself. Post by emirking A translation of the Russian statement by the poster says: “When I realized that OpenAI might have to...

CVE-2025-1066

OpenPLCV3 contains an arbitrary file upload vulnerability, which could be leveraged for malvertising or phishing campaigns...

OpenPLC 安全漏洞

OpenPLC is an open source programmable logic controller from the individual developer Thiago Alves. It can provide low-cost industrial solutions for automation and research. A security vulnerability exists in OpenPLC version 3, which stems from the inclusion of an arbitrary file upload...

CVE-2025-1066 CVE-2025-1066

OpenPLCV3 contains an arbitrary file upload vulnerability, which could be leveraged for malvertising or phishing campaigns...

CVE-2025-1066

OpenPLC_V3 is affected by an arbitrary file upload vulnerability. The CVE-2025-1066 entry identifies a high-severity, network-exposed issue (CVSS v3.1: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) that could enable malvertising or phishing campaigns. The available connected sources consistently describe ...