Week in security (April 30 – May 6)

A roundup of security news from April 30 – May 6, including Necurs malspam, Spartacus ransomware, Twitter passwords, and cybersecurity studies.
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Security world
Week in security

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Internet Shortcut used in Necurs malspam campaign

The Necurs gang tries out a new trick to load malware and bypass security defenses.
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Criminals
Threat analysis

Tags: botnetmalspamnecurssambaSMBspam

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Necurs Spammers Go All In to Find a Valentine’s Day Victim

The cybergang behind the Necurs botnet launched a massive romance-themed spam campaign in the lead up to Valentine’s Day, impersonating single Russian women looking for dates online.

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Microsoft Provides Guidance on Mitigating DDE Attacks

Microsoft published guidance for Windows admins on how to safely disable Dynamic Data Exchange (DDE) fields in Office that are being used to spread malware in email-based attacks. Continue reading Microsoft Provides Guidance on Mitigating DDE Attacks

Necurs-Based DDE Attacks Now Spreading Locky Ransomware

Researchers have spotted Locky ransomware infections emanating from the Necurs botnet via Word attachments using a DDE technique that Microsoft says is an Office feature and does not merit a security patch. Continue reading Necurs-Based DDE Attacks Now Spreading Locky Ransomware

Necurs botnet really spamming dating spam

Over the last 2 days the Necurs botnet has reduced the numbers of Locky malspam emails being sent ( still lots being sent, but in lower numbers than earlier this week and last week ). They are concurrently spamming out “dating spam” in massive numbers. Quite what they expect to Continue reading → Continue reading Necurs botnet really spamming dating spam