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Week in security (April 30 – May 6)

Last week on Labs, we examined the Spartacus ransomware, reported about a new tactic used by the Necurs malspam campaign, informed you about the recommended Twitter password change, and discussed engaging students to start considering careers in cybersecurity. Other news NTML credentials can be stolen via malicious Portable Document Format (PDF) files without any user interaction. (Source: … [Read more...]

Internet Shortcut used in Necurs malspam campaign

The Necurs botnet continues to be one of the most prolific malicious spam distributors, with regular waves of carefully-crafted attachments that are used to download malware. The majority of malspam campaigns that we track are targeting Microsoft Office with documents containing either macros or exploits. We also see a number of other types of malicious attachments that are zipped scripts (.VBS, … [Read more...]