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Tag: hackers

Worok hackers hide new malware in PNGs using steganography

A threat group tracked as ‘Worok’ hides malware within PNG images to infect victims’ machines with information-stealing malware without raising alarms. This has been confirmed by researchers at Avast, who built upon the findings of ESET, the first to spot and report on Worok’s activity in early September 2022. ESET warned that Worok targeted high-profile victims, including government entities in…

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This is how long hackers will hide in your network before deploying ransomware or being spotted

Any time is too long, but hackers are finding ways to wander through networks unseen for longer than you might expect. Cyberattackers on average have 11 days after breaching a target network before they’re being detected, according to UK security firm Sophos – and often when they are spotted it’s because they’ve deployed ransomware. As Sophos researchers note in a…

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