2025 Imperva Bad Bot Report: How AI is Supercharging the Bot Threat

Bad bots continue to target organizations across every industry and geography, but the rise of Artificial Intelligence AI is fueling bot attacks, making them more intelligent and more evasive than ever before. For over twelve years, Imperva has been dedicated to helping organizations manage and...

Year in Review: The biggest trends in ransomware

This week, our Year in Review spotlight is on ransomware --where low-profile tactics led to high-impact consequences. Ransomware operators often prioritized stealth over complexity for initial access. They also focused on slipping past defenses with minimal noise--uninstalling security tools,...

Year in Review: Key vulnerabilities, tools, and shifts in attacker email tactics

Over the next few weeks, we're breaking down the most critical sections of our 2024 Year in Review. This week, we examine the most frequently targeted vulnerabilities--particularly those affecting network infrastructure. We also detail a noticeable shift in adversary behavior, as threat actors mo...

One mighty fine-looking report

Welcome to this week's edition of the Threat Source newsletter. They say art is subjective, but have you ever seen a well-formatted bar chart? Van Gogh had Starry Night , but Talos' 2024 Year in Review available now! has color-coded data with perfect labels. True beauty. If you haven't yet had a...

New Malware Loaders Use Call Stack Spoofing, GitHub C2, and .NET Reactor for Stealth

Cybersecurity researchers have discovered an updated version of a malware loader called Hijack Loader that implements new features to evade detection and establish persistence on compromised systems. "Hijack Loader released a new module that implements call stack spoofing to hide the origin of...

Over 1,500 PostgreSQL Servers Compromised in Fileless Cryptocurrency Mining Campaign

Exposed PostgreSQL instances are the target of an ongoing campaign designed to gain unauthorized access and deploy cryptocurrency miners. Cloud security firm Wiz said the activity is a variant of an intrusion set that was first flagged by Aqua Security in August 2024 that involved the use of a...

RedCurl Uses New QWCrypt Ransomware in Hypervisor Attacks

Discover the novel QWCrypt ransomware used by RedCurl in targeted hypervisor attacks. This article details their tactics, including…...

DeepSeek users targeted with fake sponsored Google ads that deliver malware

The threat intel research used in this post was provided by Malwarebytes Senior Director of Research, Jérôme Segura. DeepSeek’s rising popularity has not only raised concerns and questions about privacy implications, but cybercriminals are also using it as a lure to trap unsuspecting Google...

⚡ THN Weekly Recap: GitHub Supply Chain Attack, AI Malware, BYOVD Tactics, and More

A quiet tweak in a popular open-source tool opened the door to a supply chain breach—what started as a targeted attack quickly spiraled, exposing secrets across countless projects. That wasn't the only stealth move. A new all-in-one malware is silently stealing passwords, crypto, and control—whil...

How Cybercriminals Exploit Notification Channels

Cybercriminals are always looking for new ways to take advantage of people. One effective method they use is…...

Live Ransomware Demo: See How Hackers Breach Networks and Demand a Ransom

Cyber threats evolve daily. In this live webinar, learn exactly how ransomware attacks unfold—from the initial breach to the moment hackers demand payment. Join Joseph Carson, Delinea's Chief Security Scientist and Advisory CISO, who brings 25 years of enterprise security expertise. Through a liv...

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...

Researchers Link CACTUS Ransomware Tactics to Former Black Basta Affiliates

Threat actors deploying the Black Basta and CACTUS ransomware families have been found to rely on the same BackConnect BC module for maintaining persistent control over infected hosts, a sign that affiliates previously associated with Black Basta may have transitioned to CACTUS. "Once infiltrated...

Leaked Black Basta Ransomware Chat Logs Reveal Inner Workings and Internal Conflicts

More than a year's worth of internal chat logs from a ransomware gang known as Black Basta have been published online in a leak that provides unprecedented visibility into their tactics and internal conflicts among its members. The Russian-language chats on the Matrix messaging platform between...

Defense Lessons From the Black Basta Ransomware Playbook

The cybersecurity world was rocked last week by a massive leak of Black Basta’s internal communications that emerged from the group’s chat logs. Triggered by internal conflicts and a retaliatory data dump following attacks on Russian banks, the exposed records offer a rare glimpse into Black...

CISA and Partners Release Advisory on Ghost (Cring) Ransomware

Today, CISA—in partnership with the Federal Bureau of Investigation FBI and Multi-State Information Sharing and Analysis Center MS-ISAC—released a joint Cybersecurity Advisory, StopRansomware: Ghost Cring Ransomware. This advisory provides network defenders with indicators of compromise IOCs,...

Debunking the AI Hype: Inside Real Hacker Tactics

Is AI really reshaping the cyber threat landscape, or is the constant drumbeat of hype drowning out actual, more tangible, real-world dangers? According to Picus Labs' Red Report 2025 which analyzed over one million malware samples, there's been no significant surge, so far, in AI-driven attacks...

Scammers Exploit JFK Files Release with Malware and Phishing

Veriti Research reported a developing cyber threat campaign centred around the declassification and release of the RFK, MLK…...

AI-Powered Social Engineering: Ancillary Tools and Techniques

Social engineering is advancing fast, at the speed of generative AI. This is offering bad actors multiple new tools and techniques for researching, scoping, and exploiting organizations. In a recent communication, the FBI pointed out: 'As technology continues to evolve, so do cybercriminals'...

University site cloned to evade ad detection distributes fake Cisco installer

There is a constant "cat and mouse" game between defenders and attackers, the latter trying to outsmart and get a head start on the former. In the context of online advertising, this involves creating fake identities or using stolen ones to push out malicious ads. An attacker not only needs to...