Zscaler Client Connector Security Vulnerability

A security vulnerability exists in the Zscaler Client Connector prior to 3.1.0 that allows local users to execute code with system privileges or perform limited actions for which they do not have privileges...

Joker Trojans Flood the Android Ecosystem

More variants of the Joker Android malware are cropping up in Google Play as well as third-party app stores, in a trend that researchers say points to a relentless targeting of the Android mobile platform. Researchers at Zscaler have found 17 different samples of Joker being regularly uploaded to...

4 identity partnerships to help drive better security

At Microsoft, we are committed to driving innovation for our partnerships within the identity ecosystem. Together, we are enabling our customers, who live and work in a heterogenous world, to get secure and remote access to the apps and resources they need. In this blog, we’d like to highlight ho...

Zero Trust and its role in securing the new normal

As the global crisis around COVID-19 continues, security teams have been forced to adapt to a rapidly evolving security landscape. Schools, businesses, and healthcare organizations are all getting work done from home on a variety of devices and locations, extending the potential security attack...

Microsoft is awarded Zscaler’s Technology Partner of the Year for 2019

Last week at Zscaler’s user conference, Zenith Live, Microsoft received Zscaler’s Technology Partner of the Year Award in the Impact category. The award was given to Microsoft for the depth and breadth of integrations we’ve collaborated with Zscaler on and the positive feedback received from...

Microsoft Intelligent Security Association expands with new members and products

Last April, we introduced theMicrosoft Intelligent Security Associationa group of 19 security technology providers who have integrated their solutions with a select set of Microsoft products to provide customers better protection, detection, and response. Today, we are pleased to announce five ne...

New Phishing Scam Reels in Netflix Users to TLS-Certified Sites

Researchers are warning of a new Netflix phishing scam that leads victims to sites with valid Transport Layer Security TLS certificates. Johannes Ullrich, dean of research at the SANS Technology Institute, said Wednesday that there’s been an uptick in Netflix phishing mails using TLS-certified...

Fake Fortnite Apps for Android Spread Spyware, Cryptominers

An array of malicious Android apps purporting to be the popular game known as Fortnite are accessing cameras, harvesting and wiping device data, and recording audio on victims’ phones. Researchers at Zscaler’s ThreatLabZ said that bad actors are taking advantage of Fortnite owner Epic Games’s...

Wave of Java-Based RATs Target Tax Filers

Spammers are spreading Java-based remote access Trojans, known as jRATs, targeting tax filers with attachments named “IRS Updates.jar” and “ImportantPDF.jar” that, if executed, give attackers access to compromised endpoints. Zscaler, which is tracking the jRATs, believes some of the campaigns cou...

Malware Evades Detection with Novel Technique

Researchers have found a new strain of document-based macro malware that evades discovery by lying dormant when it detects a security researcher’s test environment. The malware, according to researcher Caleb Fenton with security firm SentinelOne, evades detection simply by counting the number of...

iSpy Keylogger Targets Passwords, Skype, Webcams

Researchers are monitoring sales and infection rates of a new keylogger being sold on the dark web for $25 to $35. Along with capturing keystrokes, iSpy grabs passwords stored in web browsers, records Skype chats, takes webcam screenshots and steals the license keys of software such as Adobe...

Arrests Made In $45M Russian Bank Hack

Russian law enforcement has made 50 arrests in connection with a five-year operation to steal three billion rubles just shy of $45 million USD from the country’s largest bank, Sberbank. The hackers are alleged to have exploited websites, including popular news sites, to infect victims with the Lu...

Google Pulls ClickFraud App from Google Play

A malicious Android app spoofing the popular BatteryBot Pro app has been pulled from Google Play. Researchers at Zscaler reported the app, which had a package name of com.polaris.BatteryIndicatorPro. The app requested excessive permissions from the user in an attempt to get full control of an...

Searches for Pirated Content Lead to Pain and Little Gain

People love to try and get something for nothing, especially on the Internet where there’s all kinds of things available for nothing. But a lot of those free things are illegal and attackers have become very adept at taking advantage of users’ desire for free episodes of Gilmore Girls or bonus...

WordPress Sites Backdoored, Leaking Credentials

WordPress site administrators just cannot come up for air. With a raft of WordPress vulnerabilities—most of them in plugins—to address, now comes word that a number of sites running the content management system have been compromised and are sending credentials via a backdoor to a criminal group...

Android Malware Installs Pirated Assassin's Creed App

A pirated version of the Assassin’s Creed application for Android is bundled with malware according to the security-as-as-service from Zscaler. Assassin’s Creed is a popular, open-world series of adventure games available in various iterations on the XBOX, PlayStation, PC and other gaming...

Koler Malware Propagating Through SMS

A new iteration of the Android ransomware Koler has surfaced that’s trying to trick its victims into downloading the malware by propagating through SMS messages. Android users receive SMS messages containing shortened bit.ly URLs that ultimately lead to the malicious .APK. Once opened, the packag...

Feedburner Hosting Malicious JavaScript Dropper

A sub-domain of Google’s Feedburner RSS management platform is hosting a string of malicious JavaScript embedded with an iFrame, all of which is designed to upload a Trojan onto user machines and redirect visitors to a series of malicious sites. According to a report published by the security fir...

More Malware Showing Up as Fake SourceForge Web Sites

Malware developers continue to clone SourceForge Web sites that appear to offer the source code for popular gaming software but are actually peddling malicious code tied to the ZeroAccess Trojan. Julien Sobrier, a security researcher for San Jose-based cloud security provider Zscaler, on Tuesday...

Hijacked Web Sites Among The Most Visited On Google's Black List

Legitimate Web sites that have been hijacked and used to serve malicious content greately outnumber malicious sites on a list of the most-trafficked sites on Google’s blacklist, according to analysis by security firm Zscaler. Zscaler analyzed the top one million Web sites on the Web, based on...