I review a lot of laptops and I’ve noticed many of them come with a “free trial” of McAfee antivirus preinstalled. I’ve clicked through so many warnings about how my PC will be “at risk” unless I pay up for extended protection, and those McAfee alerts are in a stark red color that’s surely designed
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I review a lot of laptops and I’ve noticed many of them come with a “free trial” of McAfee antivirus preinstalled. I’ve clicked through so many warnings about how my PC will be “at risk” unless I pay up for extended protection, and those McAfee alerts are in a stark red color that’s surely designed to scare me… Read More
Macworld Mac users, we get it—you don’t like bloated, ugly antivirus software slowing down your beautifully tuned machines. But you also don’t want to be the one person who ignores modern cyber threats just because “Macs don’t get viruses.” Spoiler: they can and they do. If you’re looking for a lightweight…
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Mac users, we get it—you don’t like bloated, ugly antivirus software slowing down your beautifully tuned machines. But you also don’t want to be the one person who ignores modern cyber threats just because “Macs don’t get viruses.” Spoiler: they can and they do.
EDRKillShifter is getting a dangerous upgrade The new malware can disable AV and EDR from reputable vendors Sophos, Bitdefender, and Kaspersky among the tools being targeted Cybercriminals appear to have improved their antivirus-killing capabilities, as recent research suggest a new tool being shared within the underground community. In a new report, security researchers from Sophos
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EDRKillShifter is getting a dangerous upgrade
The new malware can disable AV and EDR from reputable vendors
Sophos, Bitdefender, and Kaspersky among the tools being targeted
Cybercriminals appear to have improved their antivirus-killing capabilities, as recent research suggest a new tool being shared within the underground community.
In a new report, security researchers from Sophos said multiple ransomware groups are successfully disabling endpoint detection and response (EDR) systems before deploying the encryptor.
Originally, the group known as RansomHub developed a tool called EDRKillShifter, which Sophos says is now made obsolete thanks to this new and improved variant. The new tool can disable security software from multiple high-end vendors such as Sophos, Bitdefender, and Kaspersky.
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Shifting strategies
The malware is often packed using a service called HeartCrypt, which obfuscates the code to evade detection.
Sophos found the attackers are using all sorts of obfuscation and anti-analysis techniques to protect their tools from security defenders, and in some cases, they’re even using signed drivers (either stolen or compromised).
In one case, the malicious code was embedded inside a legitimate utility, Beyond Compare’s Clipboard Compare tool, the researchers explained.
Sophos also said that multiple ransomware groups are using this new EDR-killing tool, suggesting a high level of collaboration between players.
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EDRKillShifter was first spotted in mid-2024, after a failed attempt to disable an antivirus and deploy ransomware.
Sophos then uncovered that the malware dropped a legitimate, but vulnerable driver.
Now, it seems there is a new method – taking an already legitimate executable and modifying it locally by inserting malicious code and payload resources (as was the case with Beyond Compare’s tool). This is often done after the attacker has access to a
