js-driveby-download-CVE-2006-4777

js-driveby-download-CVE-2006-4777 client-side malware exploiting vulnerability in Internet Explorer 6.0 SP1 on Windows XP SP2. Requires no user consent and does not download any file. Shell Code Injection into RAM from JavaScript with IE on Windows XP. Fileless, drive-by-download, client side...

Flerken

Flerken Introducción Se ha demostrado que la Ofuscación de Línea de Comandos CLOB es un factor no despreciable en el malware sin archivos o actores maliciosos que "viven de la tierra". Aunque se ven docenas de herramientas de ofuscación en la naturaleza, pocas contramedidas adecuadas se pueden...

YAMA-dev

YAMA Otro analizador de memoria más para la detección de malware Concepto YAMA es un sistema para generar escáneres que pueden inspeccionar malware específico durante la respuesta a incidentes. El escáner generado por YAMA está diseñado para explorar la memoria del sistema operativo Windows y...

fireELF

fireELF fireELF es un framework de malware Linux sin archivos de código abierto que es multiplataforma y permite a los usuarios crear y gestionar payloads fácilmente. Por defecto viene con 'memfdcreate', que es una nueva forma de ejecutar ejecutables ELF de Linux completamente desde la memoria, s...

-Remcos-RAT-Fileless-svchost-Injection-Obfuscated-Payload-Analysis-

1. Remcos – svchost Injection via Native API Calls The following Binary Ninja snippet reveals the core injection mechanism used by Remcos to inject its payload into svchost.exe. What This Code Does: CreateProcessW with the CREATESUSPENDED flag starts a new svchost process in a suspended state...

Malicious code in jsonschema-viewer (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 3692022b4caf5ac51d868aaae58e793520ac3bd36703841eb615942baf85bb87 The package's only function — main in src/jsonschemaviewer/main.py, registered as the jsonschema-viewer console script — invokes os.system to fetch a...

MAL-2026-6248 Malicious code in jsonschema-viewer (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 3692022b4caf5ac51d868aaae58e793520ac3bd36703841eb615942baf85bb87 The package's only function — main in src/jsonschemaviewer/main.py, registered as the jsonschema-viewer console script — invokes os.system to fetch a...

Fake Purchase Order Emails Spread Fileless PureLogs Malware via RAR Archives

Hackers are using fake purchase order emails and process hollowing to deploy fileless PureLogs malware to steal Windows users' browser, crypto, and Discord data...

Trojanized Gemini and Claude Installers Target Developers Via SEO Poisoning

Cybercriminals are using SEO poisoning and fake Gemini and Claude installer sites to infect developers with fileless malware and steal data...

Microsoft’s Retired IE Tool MSHTA Now Being Used in Fileless Malware Attacks

Despite Internet Explorer’s retirement, hackers are abusing the legacy MSHTA utility in stealthy fileless malware attacks targeting Windows users...

Fileless Multi-Stage Remcos RAT: From Phishing to Memory-Resident Execution

Fileless Multi-Stage Remcos RAT: From Phishing to Memory-Resident Execution By Madhini Muralidharan · March 11, 2026 Traditional malware campaigns rely heavily on dropping executable files to disk—artifacts that defenders can scan, quarantine, and analyze with signature-based security tools. Mode...

Multi-Stage VOID#GEIST Malware Delivering XWorm, AsyncRAT, and Xeno RAT

Cybersecurity researchers have disclosed details of a multi-stage malware campaign that uses batch scripts as a pathway to deliver various encrypted remote access trojan RATs payloads that correspond to XWorm, AsyncRAT, and Xeno RAT. The stealthy attack chain has been codenamed VOIDGEIST by...

Fileless protection explained: Blocking the invisible threat others miss

Most antivirus software for personal users scans your computer for malware hiding in files. This is, after all, how most malware is traditionally spread. But what about attacks that never create files? Fileless malware is a fast-growing threat that evades traditional antivirus software, because...

Maverick: a new banking Trojan abusing WhatsApp in a mass-scale distribution

A malware campaign was recently detected in Brazil, distributing a malicious LNK file using WhatsApp. It targets mainly Brazilians and uses Portuguese-named URLs. To evade detection, the command-and-control C2 server verifies each download to ensure it originates from the malware itself. The whol...

Chinese APT Hits Philippine Military Firm with New EggStreme Fileless Malware

Bitdefender uncovers EggStreme, a fileless malware by a China-based APT targeting the Philippine military and APAC organisations. Cybersecurity…...

New Fileless Malware Attack Uses AsyncRAT for Credential Theft

LevelBlue Labs reports AsyncRAT delivered through a fileless attack chain using ScreenConnect, enabling credential theft and persistence...

The Silent, Fileless Threat of VShell

The Silent, Fileless Threat of VShell By Sagar Bade · August 21, 2025 Introduction Linux environments are often seen as bastions of security, favored by developers, sysadmins, and security professionals for their stability, transparency, and resistance to malware. Compared to Windows, the attack...

Cybercriminals Use Excel Exploit to Spread Fileless Remcos RAT Malware

Cybersecurity researchers have discovered a new phishing campaign that spreads a new fileless variant of known commercial malware called Remcos RAT. Remcos RAT "provides purchases with a wide range of advanced features to remotely control computers belonging to the buyer," Fortinet FortiGuard Lab...

Fake CAPTCHA Pages Used by Lumma Stealer to Spread Fileless Malware

Lumma Stealer malware uses fake CAPTCHA to deceive victims. This information-stealing malware targets sensitive data like passwords and…...

LODEINFO Fileless Malware Evolves with Anti-Analysis and Remote Code Tricks

Cybersecurity researchers have uncovered an updated version of a backdoor called LODEINFO that's distributed via spear-phishing attacks. The findings come from Japanese company ITOCHU Cyber & Intelligence, which said the malware "has been updated with new features, as well as changes to the...