The vulnerability of Google Chrome’s browser extensions allows a perpetrator to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of Google Chrome’s browser extensions relates to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected information...

Is Your Browser Extension a Botnet Backdoor?

A company that rents out access to more than 10 million Web browsers so that clients can hide their true Internet addresses has built its network by paying browser extension makers to quietly include its code in their creations. This story examines the lopsided economics of extension development,...

Malware infected browser extensions stealing Chrome, Edge user data

By Waqas Avast noted that the malware is quite tricky and does not execute itself if the victim is a web developer as it will be easy for them to identify its malicious activities. This is a post from HackRead.com Read the original post: Malware infected browser extensions stealing Chrome, Edge...

Malicious Google Web Extensions Harvest Cryptowallet Secrets

Large campaigns that are spreading malicious browser extensions are abusing Google Ads and well-known cryptocurrency brands to draw in victims. Extensions can be installed to add widgets or other functionality to web browsers; they offer the ability to do everything from setting a special search...

Google, Mozilla Ban Hundreds of Browser Extensions in Chrome, Firefox

UPDATE Both the Google Chrome and Mozilla Firefox teams are cracking down on web browser extensions that steal user data and execute remote code, among other bad actions. Browser extensions are add-ons that users can install to enhance their web surfing experience – they offer the ability to do...

Mac threat detections on the rise in 2019

Conventional wisdom has been that, although not invulnerable to cyberthreats as some old Apple ads would have you believe, Macs are afflicted with considerably fewer infections than Windows PCs. However, when reviewing our 2019 Mac detection telemetry, we noticed a startling upward trend. Indeed,...

Avast and AVG Browser Extensions Spying On Chrome and Firefox Users

If your Firefox or Chrome browser has any of the below-listed four extensions offered by Avast and its subsidiary AVG installed, you should disable or remove them as soon as possible. Avast Online Security AVG Online Security Avast SafePrice AVG SafePrice Why? Because these four widely installed...

Supply-Chain Attack against the Electron Development Platform

Electron is a cross-platform development system for many popular communications apps, including Skype, Slack, and WhatsApp. Security vulnerabilities in the update system allows someone to silently inject malicious code into applications. From a news article: At the BSides LV security conference o...

A week in security (July 15 – 21)

Last week on Malwarebytes Labs, we took an extensive look at Sodinokibi, one of the new ransomware strains found in the wild that many believe picked up where GandCrab left off. We also profiled Extenbro, a Trojan that protects adware; reported on the UK's new Facebook reporting tool, homed in on...

Browser Extensions Scraped Data From Millions of People

Slack passwords, NSO spyware, and more of the week's top security news...

Mailvelope Encryption Problem Vulnerability

Mailvelope is a suite of open source extensions for using in-browsers. The program is primarily used for end-to-end encryption of email traffic within a web browser. A cryptographic issue vulnerability exists in Mailvelope versions prior to 3.3.0, which arises from a network system or product tha...

Mac Malware Pushed via Google Search Results, Masquerades as Flash Installer

Never-before-seen Mac malware, dubbed OSX/CrescentCore, has been discovered in the wild. The trojan, spotted on various websites masquerading as an Adobe Flash Player installer, drops malicious applications and browser extensions on victims’ systems when downloaded. OSX/CrescentCore is spread via...

Adware and PUPs families add push notifications as an attack vector

Some existing families of potentially unwanted programs and adware have added browser push notifications to their weapons arsenal. Offering themselves up as browser extensions on Chrome and Firefox, these threats pose as useful plugins then haggle users with notifications. A family of search...

Hyperlink auditing: where has my option to disable it gone?

There is a relatively old method that might be gaining traction to follow users around on the world wide web. Most Internet users are aware of the fact that they are being tracked in several ways. And awareness is a good start. In a state of awareness, you can adjust your behavior accordingly, an...

Critical RCE Bug in Cisco WebEx Browser Extensions Faces 'Ongoing Exploitation'

A critical vulnerability in Cisco WebEx browser extensions that could allow unauthenticated remote code-execution RCE on targeted machines is being actively exploited in the wild. The news comes just days after Cisco issued a flurry of 24 different patches for its IOS XE operating system and warn...

Facebook Alleges Two Ukrainians Scraped Data From 63K Profiles

Facebook has sued two Ukrainian men that it says used quiz apps and malicious browser extensions to scoop up private data from 63,000 platform users, and then use that data for advertising purposes. A lawsuit filed Friday by Facebook alleged that the two men, Gleb Sluchevsky and Andrey Gorbachov,...

Razy Malware Attacks Browser Extensions to Steal Cryptocurrency

UPDATE A Windows malware dubbed “Razy” has been uncovered that sports a toolbox of cryptocurrency theft and fraud tools. Razy works by weaponizing browser extensions in order to perpetrate a range of online scams on unwitting victims. According to researchers at Kaspersky Lab, the trojan targets...

How Web Apps Can Turn Browser Extensions Into Backdoors

Researchers have added another reason to be suspicious of web browser extensions. According to a recently published academic report, various Chrome, Firefox and Opera browser extensions can be compromised by an adversary that can steal sensitive browser data and plant arbitrary files on targeted...

CVE-2018-18865

The Royal browser extensions TS before 4.3.60728 Release Date 2018-07-28 and TSX before 3.3.1 Release Date 2018-09-13 allow Credentials Disclosure...

Facebook Blames Malicious Extensions in Breach of 81K Private Messages

Hackers have published what they claim are private messages from at least 81,000 Facebook accounts – and they say the trove contains a fraction of the details they have from a larger cadre of 120 million accounts. In an English-language Dark Web advertisement now taken down, the perpetrators...