Microsoft Warns of Large-Scale AiTM Phishing Attacks Against Over 10,000 Organizations

Microsoft on Tuesday disclosed that a large-scale phishing campaign targeted over 10,000 organizations since September 2021 by hijacking Office 365’s authentication process even on accounts secured with multi-factor authentication (MFA). “The attackers then used the stolen credentials and session cookies to access affected users’ mailboxes and perform follow-on business email compromise (BEC) campaigns against other…

Microsoft Warns of Large-Scale AiTM Phishing Attacks Against Over 10,000 Organizations

Microsoft on Tuesday disclosed that a large-scale phishing campaign targeted over 10,000 organizations since September 2021 by hijacking Office 365’s authentication process even on accounts secured with multi-factor authentication (MFA). “The attackers then used the stolen credentials and session cookies to access affected users’ mailboxes and perform follow-on business email compromise (BEC) campaigns against other…

New ‘Retbleed’ Speculative Execution Attack Affects AMD and Intel CPUs

Security researchers have uncovered yet another vulnerability affecting numerous older AMD and Intel microprocessors that could bypass current defenses and result in Spectre-based speculative-execution attacks. Dubbed Retbleed by ETH Zurich researchers Johannes Wikner and Kaveh Razavi, the issues are tracked as CVE-2022-29900 (AMD) and CVE-2022-29901 (Intel), with the chipmakers releasing software mitigations as part of…

Researchers Uncover New Variants of the ChromeLoader Browser Hijacking Malware

Cybersecurity researchers have uncovered new variants of the ChromeLoader information-stealing malware, highlighting its evolving feature set in a short span of time. Primarily used for hijacking victims’ browser searches and presenting advertisements, ChromeLoader came to light in January 2022 and has been distributed in the form of ISO or DMG file downloads advertised via QR…

Microsoft Windows Autopatch is Now Generally Available for Enterprise Systems

Microsoft on Monday announced the general availability of a feature called Autopatch that automatically keeps Windows and Office software up-to-date on enrolled endpoints. The launch, which comes a day before Microsoft is expected to release its monthly round of security patches, is available for customers with Windows Enterprise E3 and E5 licenses. It, however, doesn’t…

Cloud-based Cryptocurrency Miners Targeting GitHub Actions and Azure VMs

GitHub Actions and Azure virtual machines (VMs) are being leveraged for cloud-based cryptocurrency mining, indicating sustained attempts on the part of malicious actors to target cloud resources for illicit purposes. “Attackers can abuse the runners or servers provided by GitHub to run an organization’s pipelines and automation by maliciously downloading and installing their own cryptocurrency…

Cloud-based Cryptocurrency Miners Targeting GitHub Actions and Azure VMs

GitHub Actions and Azure virtual machines (VMs) are being leveraged for cloud-based cryptocurrency mining, indicating sustained attempts on the part of malicious actors to target cloud resources for illicit purposes. “Attackers can abuse the runners or servers provided by GitHub to run an organization’s pipelines and automation by maliciously downloading and installing their own cryptocurrency…