CISA and FBI Warn Fast Flux is Powering Resilient Malware, C2, and Phishing Networks

Cybersecurity agencies from Australia, Canada, New Zealand, and the United States have published a joint advisory about the risks associated with a technique called fast flux that has been adopted by threat actors to obscure a command-and-control C2 channel. "'Fast flux' is a technique used to...

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...

AWS VDP: Amazon Pinpoint SMS and Voice, version 2 Service Reporting "AWS Internal" for CloudTrail Events Generated from FIPS Endpoints

The Amazon Pinpoint SMS and Voice, version 2 service was found to incorrectly report the user-agent and network information as "AWS Internal" for five specific API endpoints that are FIPS endpoints. This issue was discovered to be similar to a previous bug reported for the Comprehend Medical and...

Hackers Are Using Microsoft’s .NET MAUI to Spread Android Malware

McAfee Labs reveals new Android malware exploiting .NET MAUI to steal user data. Learn about advanced evasion techniques and how to stay protected...

New MassJacker Malware Targets Piracy Users, Hijacking Cryptocurrency Transactions

Users searching for pirated software are the target of a new malware campaign that delivers a previously undocumented clipper malware called MassJacker, according to findings from CyberArk. Clipper malware is a type of cryware as coined by Microsoft that's designed to monitor a victim's clipboard...

New OBSCURE#BAT Malware Targets Users with Fake Captchas

OBSCUREBAT malware campaign exploits social engineering & fake software downloads to evade detection, steal data and persist on…...

Abusing with style: Leveraging cascading style sheets for evasion and tracking

Cisco Talos has identified actors abusing Cascading Style Sheets CSS to 1 evade spam filters and detection engines, and 2 track users' actions and preferences. This blog is a follow-up to our previous report on how threat actors could abuse CSS using a technique called "hidden text salting" to...

The dark side of sports betting: How mirror sites help gambling scams thrive

Sports betting is a multi-billion-dollar industry, but behind the flashing lights and promises of easy money lies a hidden underworld of deception. In recent years, shady betting companies have found a clever way to bypass regulations and continue their operations through mirror sites —duplicate...

Steganography Explained: How XWorm Hides Inside Images

Inside the most innocent-looking image, a breathtaking landscape, or a funny meme, something dangerous could be hiding, waiting for its moment to strike. No strange file names. No antivirus warnings. Just a harmless picture, secretly concealing a payload that can steal data, execute malware, and...

FIN7, FIN8, and Others Use Ragnar Loader for Persistent Access and Ransomware Operations

Threat hunters have shed light on a "sophisticated and evolving malware toolkit" called Ragnar Loader that's used by various cybercrime and ransomware groups like Ragnar Locker aka Monstrous Mantis, FIN7, FIN8, and Ruthless Mantis ex-REvil. "Ragnar Loader plays a key role in keeping access to...

Linux Distros Unpatched Vulnerability : CVE-2021-37592

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments...

Picklescan Allows Remote Code Execution via Malicious Pickle File Bypassing Static Analysis

CVE-2025-1716 Summary An unsafe deserialization vulnerability in Python’s pickle module allows an attacker to bypass static analysis tools like Picklescan and execute arbitrary code during deserialization. This can be exploited to run pip install and fetch a malicious package, enabling remote cod...

New Malware Campaign Exploits Microsoft Graph API to Infect Windows

FortiGuard Labs discovers an advanced attack using modified Havoc Demon and SharePoint. Explore the attack's evasion techniques and security measures...

New Backdoor Auto-color Linux Targets Systems in US and Asia

Auto-color: New Linux backdoor malware targeting the US and Asia. Learn about its advanced evasion, persistence, and detection…...

New Linux Malware 'Auto-Color' Grants Hackers Full Remote Access to Compromised Systems

Universities and government organizations in North America and Asia have been targeted by a previously undocumented Linux malware called Auto-Color between November and December 2024, according to new findings from Palo Alto Networks Unit 42. "Once installed, Auto-color allows threat actors full...

2,500+ Truesight.sys Driver Variants Exploited to Bypass EDR and Deploy HiddenGh0st RAT

A large-scale malware campaign has been found leveraging a vulnerable Windows driver associated with Adlice's product suite to sidestep detection efforts and deliver the Gh0st RAT malware. "To further evade detection, the attackers deliberately generated multiple variants with different hashes of...

New Snake Keylogger Variant Leverages AutoIt Scripting to Evade Detection

A new variant of the Snake Keylogger malware is being used to actively target Windows users located in China, Turkey, Indonesia, Taiwan, and Spain. Fortinet FortiGuard Labs said the new version of the malware has been behind over 280 million blocked infection attempts worldwide since the start of...

StaryDobry ruins New Year’s Eve, delivering miner instead of presents

Introduction On December 31, cybercriminals launched a mass infection campaign, aiming to exploit reduced vigilance and increased torrent traffic during the holiday season. Our telemetry detected the attack, which lasted for a month and affected individuals and businesses by distributing the XMRi...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: extend minimum interval restriction to entire cycle too It is possible for syzbot to bypass the restriction imposed by the problematic commit in the “Fixes” tag, because the taprio UAPI allows a cycle time that...

CVE-2025-20183

A vulnerability in a policy-based Cisco Application Visibility and Control AVC implementation of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to evade the antivirus scanner and download a malicious file onto an endpoint. The vulnerability i...