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Posts Tagged ‘digital signatures’

We spotted yet another threat lurking around social media sites targeting users of either Google Chrome or Mozilla Firefox. This threat uses fake extensions for both browsers to infiltrate user systems and hijack social media accounts – specifically, Facebook, Google+, and Twitter accounts.To install these fake extensions, users would see various lures on social media […]

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Ransomware has become major concern among users, particularly those variants that mimic law enforcement agencies like the FBI (known as police ransomware). Certain features have also been incorporated into the threat recently, such as an audio file and just now, fake digital certificates.We encountered two samples bearing the same fake digital signature, which Trend Micro […]

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Microsoft has issued Security Advisory 2718704, in which the company disclosed that it recently became aware of the Flamer/Skywiper threat, which uses certificates derived from the Microsoft Certificate Authority.The actual certificate in question was used to sign at least one of the attack components associated with the module in the Skywiper framework.This is how the […]

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