Malware in 2025 spread far beyond Windows PCs

This blog is part of a series highlighting new and concerning trends we noticed over the last year. Trends matter because they almost always provide a good indication of what 's coming next. If there’s one thing that became very clear in 2025, it’s that malware is no longer focused on Windows...

MAL-2025-192942 Malicious code in telebot-bot (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 ae13454f920b5cce1011546e4802ed263ce8218d4b484ef8471142abb42c3f3e The package, distinguished as a speed testing or typosquatted Telegram library, contains a Telegram bot to perform remote control of the computer --- Category:...

MAL-2025-192943 Malicious code in telegrem (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 f2186dc29d07dc851d756bae0b5d080ebe5923efe6654fdb4aa9ec55bbba9b6a The package, distinguished as a speed testing or typosquatted Telegram library, contains a Telegram bot to perform remote control of the computer --- Category:...

📄 Backdoor.Win32.Netbus.170 Blind Command Execution

This Metasploit module provides historical/educational exploitation of the Backdoor.Win32.Netbus.170 trojan, originally discovered in 1998. It represents a legacy proof-of-concept rather than a modern offensive security tool...

Hackers Abuse Popular Monitoring Tool Nezha as a Stealth Trojan

Cybersecurity firm Ontinue reveals how the open-source tool Nezha is being used as a Remote Access Trojan RAT to bypass security and control servers globally...

Kimsuky Spreads DocSwap Android Malware via QR Phishing Posing as Delivery App

The North Korean threat actor known as Kimsuky has been linked to a new campaign that distributes a new variant of Android malware called DocSwap via QR codes hosted on phishing sites mimicking Seoul-based logistics firm CJ Logistics formerly CJ Korea Express. "The threat actor leveraged QR codes...

Fake OSINT and GPT Utility GitHub Repos Spread PyStoreRAT Malware Payloads

Cybersecurity researchers are calling attention to a new campaign that's leveraging GitHub-hosted Python repositories to distribute a previously undocumented JavaScript-based Remote Access Trojan RAT dubbed PyStoreRAT. "These repositories, often themed as development utilities or OSINT tools,...

Persistent Backdoor Attacks under Continual Fine-Tuning of LLMs

Backdoor attacks embed malicious behaviors into Large Language Models LLMs, enabling adversaries to trigger harmful outputs or bypass safety controls. However, the persistence of the implanted backdoors under user-driven post-deployment continual fine-tuning has been rarely examined. Most prior...

Malicious Visual Studio Code Extensions Hide Trojan in Fake PNG Files

VS Code developers beware: ReversingLabs found 19 malicious extensions hiding trojans inside a popular dependency, disguising the final malware payload as a standard PNG image file...

ChrimeraWire Trojan Fakes Chrome Activity to Manipulate Search Rankings

ChrimeraWire is a new Windows trojan that automates web browsing through Chrome to simulate user activity and manipulate search engine rankings...

New JS#SMUGGLER Campaign Drops NetSupport RAT Through Infected Sites

Securonix Threat Research details the complex JSSMUGGLER campaign, a three-step web attack using obfuscated JavaScript and hidden HTA files to install the NetSupport RAT on user Windows desktops, granting hackers full remote control and persistent access...

Experts Confirm JS#SMUGGLER Uses Compromised Sites to Deploy NetSupport RAT

Cybersecurity researchers are calling attention to a new campaign dubbed JSSMUGGLER that has been observed leveraging compromised websites as a distribution vector for a remote access trojan named NetSupport RAT. The attack chain, analyzed by Securonix, involves three main moving parts: An...

Malicious code in rendom (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 1effe6d94e0635864c22ea960a22b40294c3f2e510550046139bcd78f62a33fa The package contains a Telegram bot to perform remote control of the computer. The package name additionally suggests typosquatting against standard random...

Silver Fox Uses Fake Microsoft Teams Installer to Spread ValleyRAT Malware in China

The threat actor known as Silver Fox has been spotted orchestrating a false flag operation to mimic a Russian threat group in attacks targeting organizations in China. The search engine optimization SEO poisoning campaign leverages Microsoft Teams lures to trick unsuspecting users into downloadin...

Brazil Hit by Banking Trojan Spread via WhatsApp Worm and RelayNFC NFC Relay Fraud

The threat actor known as Water Saci is actively evolving its tactics, switching to a sophisticated, highly layered infection chain that uses HTML Application HTA files and PDFs to propagate via WhatsApp a worm that deploys a banking trojan in attacks targeting users in Brazil. The latest wave is...

New Android malware lets criminals control your phone and drain your bank account

Albiriox is a new family of Android banking malware that gives attackers live remote control over infected phones, letting them quietly drain bank and crypto accounts during real sessions. Researchers have analyzed a new Android malware family called Albiriox which is showing signs of developing...

CacheTrap: Injecting Trojans in LLMs without Leaving Any Traces in Inputs or Weights

Adversarial weight perturbation has emerged as a concerning threat to LLMs that either use training privileges or system-level access to inject adversarial corruption in model weights. With the emergence of innovative defensive solutions that place system- and algorithm-level checks and correctio...

Malicious code in tablates (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: google-open-source-security 56df7571e75ad7e85850f9a34bb482f19466af4481db56951ffba42475a4238d This package is malicious and typosquating the legitimate pyspellchecker library. This package will deploy a remote-access trojan that...

MAL-2025-191534 Malicious code in tablates (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: google-open-source-security 56df7571e75ad7e85850f9a34bb482f19466af4481db56951ffba42475a4238d This package is malicious and typosquating the legitimate pyspellchecker library. This package will deploy a remote-access trojan that...

Malicious code in tableate (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: google-open-source-security 762292d92c617c287b3c6b54f7c4a8b8630e7dd893b40dd05bade462fec7ca26 This package is malicious and typosquating the legitimate pyspellchecker library. This package will deploy a remote-access trojan that...