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Weekly Update 211

Troy Hunt

22% of breaches begin with phishing (DBIR 2020). This week there's all the above and, on a more personal note, my relationship with Charlotte. References My shoes are connected! Sponsored by: Tines. Submit suspicious emails and attachments to Phish.ly for free immediate analysis!

Firmware 336
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Beware the Cyber Ghouls: Spooky Threats Lurking in Digital Shadows

SecureWorld News

From zombie botnets to phishing phantoms, these threats might sound like campfire tales, but they're some of the most sinister forces in cybersecurity today. Warding off zombies : Regularly update device firmware, patch IoT devices, and monitor for unusual traffic patterns.

IoT 120
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MikroTik botnet relies on DNS misconfiguration to spread malware

Security Affairs

The researchers found that the botnet comprises MikroTik routers with various firmware versions, including recent ones. ” The botnet size enables diverse attacks, from DDoS to phishing, spreading malware via SOCKS proxies, and amplifying C2 operations while masking attackers’ identities.

DNS 138
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Flaws in firmware expose almost any modern PC to Cold Boot Attacks

Security Affairs

New Firmware Flaws Resurrect Cold Boot Attacks. A team of security researchers demonstrated that the firmware running on nearly all modern computers is vulnerable to cold boot attacks. But it is the kind of thing that attackers looking for bigger phish, like a bank or large enterprise, will know how to use.”. Pierluigi Paganini.

Firmware 111
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Ghost Ransomware a Persistent Global Threat to Critical Infrastructure

SecureWorld News

Patching and vulnerability management Apply timely security updates to operating systems, software, and firmware. Strengthening identity security Enforce phishing-resistant MFA for all privileged accounts. Cybersecurity awareness and incident response Train employees to recognize phishing attempts and social engineering.

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Lazarus APT employed an exploit in a Dell firmware driver in recent attacks

Security Affairs

North Korea-linked Lazarus APT has been spotted deploying a Windows rootkit by taking advantage of an exploit in a Dell firmware driver. The North Korea-backed Lazarus Group has been observed deploying a Windows rootkit by relying on exploit in a Dell firmware driver dbutil_2_3.sys, sys, ESET researchers warn. Pierluigi Paganini.

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Medusa Ransomware Warning: CISA and FBI Issue Urgent Advisory

eSecurity Planet

Attack vectors and techniques Medusa actors leverage common ransomware tactics, including phishing campaigns and exploiting unpatched software vulnerabilities. Attackers employ a double extortion strategy, encrypting victim data and threatening to publicly release it if the ransom is unpaid.