Latest Posts


Reversing Prince Harming’s kiss of death

The suspend/resume vulnerability disclosed a few weeks ago (named Prince Harming by Katie Moussouris) turned out to be a zero day. While (I believe) its real world impact is small, it is nonetheless a critical vulnerability. It must be noticed that firmware issues are not Apple exclusive. For example, Gigabyte ships their UEFI with the Read more


What is Next Generation Endpoint Protection?

By now you have probably heard the term “Next Generation Endpoint Protection. A slew of companies, startups and incumbents alike use the term to describe some of their offerings. But what does it actually mean? What are the capabilities you should look for in a Next Generation Endpoint Protection Platform? What makes it “next generation”? Read more

sentinelone malware

Turning the Tables on “Rombertik” Reveals the Story Behind the Threat

A malware variant named “Rombertik” recently made headlines for its ability to wipe the Master Boot Record (MBR) of a machine if it detected the presence of analysis or debugging functions. For example, Rombertik can detect system strings that contain “malwar,” “sampl,” “viru,” and “sandb,” – all commonly used strings by malware researchers and online Read more


Understanding “Kjw0rm” Malware – We Dive in to the TV5 Cyber Attack

Pro-Islamic state hackers conducted an attack against “TV5Monde” TV station in France, news sources report that the Islamic hacktivist were apparently unhappy about the TV station that covered the recent events in Paris.   TV5Monde’s “defaced” twitter account. Sources report that the attack chain was a social engineering phishing via social networks that was followed by exploitation of Read more


How to Protect Against Latest OSX Pw2Own Vulnerabilities – SentinelOne Anti-Exploitation

At this year’s CanSecWest security conference, a researcher demonstrated how Apple’s OS X is vulnerable to a software hack in which applications load infected shared software libraries. Applications use dynamic linked libraries, or DLLs, as software repositories. Apple’s OS X can be compromised by a DLL hijack, which tricks Apple’s operating system loader into verifying Read more


Anatomy of CryptoWall 3.0 – a look inside ransomware’s tactics

Background CryptoWall is a new and highly destructive variant of ransomware. Ransomware is malicious software (malware) that infects your computer and holds hostage something of value to you in exchange for money. Older ransomware used to block access to computers. Newer ransomware, such as CryptoWall, takes your data hostage. With CryptoWall, thieves use asymmetric encryption, Read more


OSX.IronCore.A or what we know about OSX.FlashImitator.A

On December 12th, Apple updated XProtect, OS X’s built-in malware detection tool, to include a signature for OSX.FlashImitator.A. We analyzed the matched file and found even more samples. For some time now, OS X has been the target of Download Valley companies such as Genieo Innovation and Conduit, until Apple published an adware removal guide. This Read more


How Technically Accurate is Blackhat the Movie?

This weekend Michael Mann’s latest movie Blackhat, starring Chris Hemsworth, Tang Wei, Viola Davis, Holt McCallany, and Wang Leehom, was released. Given the high profile mainstream media coverage of attacks and data breaches over the past few years, it’s not surprising that Hollywood is capitalizing on cyber-crime trends. We were curious about how accurately the Read more


The Truth About Whitelisting

In recent years, security products utilizing application whitelisting have gained popularity as a cost-effective alternative for fighting malware and advanced persistent threats. In this first in a series of posts about whitelisting, we will discuss the limitations of relying on whitelisting for combatting both common threats and APTs. First generation whitelisting mechanisms were introduced by Read more


2015 Predictions Report: Hostage-Ware, OS X, Power Grids and More

Based on our predictive execution inspection technology, which monitors every process on machines it protects, we have unique visibility into advanced attacks. For example, earlier this year our researchers discovered and reported on government grade attack code being used to make ransomware invisible. As a result, we are regularly called upon by law enforcement and Read more


WireLurker Malware Targets iPhone and Mac

The news last week that malware had infected Apple phones and computers in China sent a shiver down the spine of Mac and iPhone users everywhere. The malware, called WireLurker, targets Apple mobile and desktop devices to steal personal information. So far, the campaign has only affected users in China, but it illustrates the new Read more


Unpatched Vulnerabilities Leave Apple Users at Risk

Apple has a long-standing reputation for silence when it comes to security. Whether it’s OS X or iOS, details around vulnerabilities, security patches and malware attacks are often obscured. This has led leading researchers and security vendors to reference the notorious idiom“security through obscurity” to describe Apple’s approach to threats. Whether this approach is effective or not, is up for Read more


Sandworm Demonstrates Why Patches aren’t Foolproof

Last week the security community was scrambling to update new AV signatures while continuing to patch systems against new variants of the “Sandworm” malware, which attacks Windows systems using a zero-day flaw that can enable attackers to take complete control of an infected system. The vulnerability used by Sandworm resides in a Windows component called Read more


Is Zero Day Java Exploit Detection Possible?

Java is an expansive, ubiquitous, platform agnostic infrastructure for delivering remote code to endpoint computers. That makes it a perfect malware distribution pipeline. It enables malware authors to take advantage of Java exploits to infect computers on a global scale. To make matters worse, security updates are not installed automatically when the Java updater launches, Read more


More Embedded Systems Havoc: ATM Hacks Target Endpoints Once Again

Recently, reports surfaced about new malware being used to hack ATM machines across the globe. The program, named Backdoor.MSIL.Tyupkin, creates a backdoor that bypasses the ATM’s security system and forces it to dispense cash. Though the hacks are primarily taking place in Russia and Europe, reports from the U.S., China, India, and Israel have also Read more


Why Anti-Exploitation Only Solves Part of the Endpoint Security Problem

In July Microsoft introduced an updated version of its Enhanced Mitigation Experience Toolkit (EMET), designed to protect against malicious and targeted attacks on its software. EMET aims to prevent software vulnerabilities from being successfully exploited. The most recent version employs Return-Oriented Programming protections  (ROP), Export Address Filter (EAF) and EAF+ security, and Attack Surface Reduction Read more


Internet Explorer Vulnerability Kept Secret For Three Years

Security vulnerability research companies search for vulnerable applications and disclose their findings to application vendors, governmental agencies, and operating system vendors. Often this information costs a substantial fee. For example, vulnerable code found inside a browser, such as Internet Explorer or Chrome, can cost thousands of dollars. Agencies around the world typically pay high amounts of money in Read more

case of the Gyges, the invisible Malware

The case of the Gyges, the invisible Malware

Government-Grade now in the Hands of Cybercriminals   In March 2014, the Sentinel Labs Research Lab detected a sophisticated piece of malware dubbed Gyges that is virtually invisible and capable of operating undetected for long periods of time. We first detected Gyges with our heuristic sensors and then our reverse engineering task force performed an Read more