Jérôme Segura
Lead Malware Intelligence Analyst

Security researcher with a focus on exploits, malvertising and fraud.

August 29, 2016 - This post covers the information disclosure bugs in Internet Explorer and Edge that we sometimes refer to as 'fingerprinting'. We review past flaws as well as a currently unpatched one used in the wild before exploring some long term mitigations.

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August 25, 2016 - In this article we take a look at some tricks that target Google Chrome users to dupe them with the infamous tech support scam pop ups. In particular, we examine the fake address bar and alert dialogs which people have come to trust and yet can be deceiving.

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August 15, 2016 - Something unusual happened in the exploit kit ecosystem. Two well-known malware distribution campaigns switched from Neutrino EK to RIG EK. A temporary blip or a more durable change? Only time will tell.

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August 12, 2016 - Keeping up with twists and turns on the exploit kit scene, we examine a new redirection mechanism to Neutrino EK which adds fingerprinting way up the infection chain by crafting a special Flash file and uploading it on compromised hosts. This ensures proper filtering of non desirable traffic even before the gate to the exploit kit.

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August 10, 2016 - In this malvertising campaign, both RIG EK and Sundown EK are used to deliver the same threat, an indication that the actor behind it is either testing or maximizing infection rates.

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