RSS ze světa hackingu


Experts Find a Way to Learn What You're Typing During Video Calls

A new attack framework aims to infer keystrokes typed by a target user at the opposite end of a video conference call by simply leveraging the video feed to correlate observable body movements to the text being typed. The research was undertaken by Mohd Sabra, and Murtuza Jadliwala from the University of Texas at San Antonio and Anindya Maiti from the University of Oklahoma, who say the attack…

Datum: 23. 2. 2021

5 Security Lessons for Small Security Teams for the Post COVID19 Era

A full-time mass work from home (WFH) workforce was once considered an extreme risk scenario that few risk or security professionals even bothered to think about. Unfortunately, within a single day, businesses worldwide had to face such a reality. Their 3-year long digital transformation strategy was forced to become a 3-week sprint during which offices were abandoned, and people started working…

Datum: 23. 2. 2021

Shadow Attacks Let Attackers Replace Content in Digitally Signed PDFs

Researchers have demonstrated a novel class of attacks that could allow a bad actor to potentially circumvent existing countermeasures and break the integrity protection of digitally signed PDF documents. Called "Shadow attacks" by academics from Ruhr-University Bochum, the technique uses the "enormous flexibility provided by the PDF specification so that shadow documents remain…

Datum: 23. 2. 2021

Hackers Exploit Accellion Zero-Days in Recent Data Theft and Extortion Attacks

Cybersecurity researchers on Monday tied a string of attacks targeting Accellion File Transfer Appliance (FTA) servers over the past two months to data theft and extortion campaign orchestrated by a cybercrime group called UNC2546. The attacks, which began in mid-December 2020, involved exploiting multiple zero-day vulnerabilities in the legacy FTA software to install a new web shell named…

Datum: 23. 2. 2021

How to Fight Business Email Compromise (BEC) with Email Authentication?

An ever-evolving and rampant form of cybercrime that targets emails as the potential medium to conduct fraud is known as Business Email Compromise. Targeting commercial, government as well as non-profit organizations, BEC can lead to huge amounts of data loss, security breach, and compromised financial assets. It is a common misconception that cybercriminals usually lay their focus on MNCs and…

Datum: 22. 2. 2021

Chinese Hackers Had Access to a U.S. Hacking Tool Years Before It Was Leaked Online

On August 13, 2016, a hacking unit calling itself "The Shadow Brokers" announced that it had stolen malware tools and exploits used by the Equation Group, a sophisticated threat actor believed to be affiliated to the Tailored Access Operations (TAO) unit of the U.S. National Security Agency (NSA). Although the group has since signed off following the unprecedented disclosures, new "conclusive"…

Datum: 22. 2. 2021

New 'Silver Sparrow' Malware Infected Nearly 30,000 Apple Macs

Days after the first malware targeting Apple M1 chips were discovered in the wild, researchers have disclosed yet another previously undetected piece of malicious software that has already infected 29,139 Macs running Intel x86_64 and the iPhone maker's M1 processors. However, the ultimate goal of the operation remains something of a conundrum, what with the lack of a next-stage or final payload…

Datum: 22. 2. 2021

Privacy Bug in Brave Browser Exposes Dark-Web Browsing History of Its Users

Brave has fixed a privacy issue in its browser that sent queries for .onion domains to public internet DNS resolvers rather than routing them through Tor nodes, thus exposing users' visits to dark web websites. The bug was addressed in a hotfix release (V1.20.108) made available yesterday. Brave ships with a built-in feature called "Private Window with Tor" that integrates the Tor anonymity…

Datum: 20. 2. 2021

New Hack Lets Attackers Bypass MasterCard PIN by Using Them As Visa Card

Cybersecurity researchers have disclosed a novel attack that could allow criminals to trick a point of sale terminal into transacting with a victim's Mastercard contactless card while believing it to be a Visa card. The research, published by a group of academics from the ETH Zurich, builds on a study detailed last September that delved into a PIN bypass attack, permitting bad actors to leverage…

Datum: 19. 2. 2021

Masslogger Trojan Upgraded to Steal All Your Outlook, Chrome Credentials

A credential stealer infamous for targeting Windows systems has resurfaced in a new phishing campaign that aims to steal credentials from Microsoft Outlook, Google Chrome, and instant messenger apps. Primarily directed against users in Turkey, Latvia, and Italy starting mid-January, the attacks involve the use of MassLogger — a .NET-based malware with capabilities to hinder static analysis —…

Datum: 19. 2. 2021

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