CyberSecure Specialist

ESET Research ESET researchers discovered a zero-day Telegram for Android exploit that allows sending malicious files disguised as videos Lukas Stefanko 22 Jul 2024  •  , 6 min. read ESET researchers discovered a zero-day exploit that targets Telegram for Android, which appeared for sale for an unspecified price in an underground forum post from June 6th, 2024. Using the exploit to abuse a vulnerability that we named EvilVideo, attackers could share malicious Android payloads via…

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Video A purported ad blocker marketed as a security solution leverages a Microsoft-signed driver that inadvertently exposes victims to dangerous threats 21 Jul 2024 This week, ESET researchers have released their findings about HotPage, a browser injector that leverages a driver developed by a Chinese company and signed by Microsoft. The malware masquerades as an “Internet café security solution” with ad-blocking capabilities. In reality, however, it displays game-related ads and can modify or replace the…

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Malware research involves studying threat actor TTPs, mapping infrastructure, analyzing novel techniques… And while most of these investigations build on existing research, sometimes they start from a hunch, something that looks too simple. At the end of 2023, we stumbled upon an installer named HotPage.exe that deploys a driver capable of injecting code into remote processes, and two libraries capable of intercepting and tampering with browsers’ network traffic. The malware can modify or replace the…

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Digital Security If a software update process fails, it can lead to catastrophic consequences, as seen today with widespread blue screens of death blamed on a bad update by CrowdStrike Tony Anscombe 19 Jul 2024  •  , 2 min. read Cybersecurity is often about speed; a threat actor creates a malicious attack technique or code, cybersecurity companies react to the new threat and if necessary, adjust and adopt methods to detect the threat. That adoption…

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Digital Security The widespread IT outages triggered by a faulty CrowdStrike update have put software updates in the spotlight. Here’s why you shouldn’t dread them. 19 Jul 2024  •  , 3 min. read In the realm of computing, few things are as unsettling as encountering a blue screen of death (BSOD) on your Windows system. The ominous screen with its cryptic error messages invokes a mix of alarm and frustration even among many seasoned technology…

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