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Threat actors exploited a recently patched remote code execution vulnerability (CVE-2025-20352) in older, unprotected Cisco networking devices to deploy a Linux rootkit and gain persistent access. [...]
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A threat actor has been deploying a previously unseen malware called OVERSTEP that modifies the boot process of fully-patched but no longer supported SonicWall Secure Mobile Access appliances. [...]
Hacking Group UNC6148 Steals Credentials With New OVERSTEP Rootkit, Google SaysA cybercrime group used a backdoor in a fully patched SonicWall appliance to steal credentials and may have sold the stolen data to ransomware groups as part of an ongoing campaign, Google Threat Intelligence Group found. The firm attributed the campaign to a cybercrime group it tracks as UNC6148.
Someone's OVERSTEPing the mark Unknown miscreants are exploiting fully patched, end-of-life SonicWall VPNs to deploy a previously unknown backdoor and rootkit, likely for data theft and extortion, according to Google's Threat Intelligence Group.…
A threat activity cluster has been observed targeting fully-patched end-of-life SonicWall Secure Mobile Access (SMA) 100 series appliances as part of a campaign designed to drop a backdoor called OVERSTEP
CISA Publishes Anatomy of Advanced Ivanti VPN MalwareHackers using Trojans connected to a malware family deployed by Chinese nation-state hackers are actively exploiting a now-patched vulnerability in Ivanti Connect Secure appliances. The malware "contains capabilities of a rootkit, dropper, backdoor, bootkit, proxy and tunneler."
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has shed light on a new malware called RESURGE that has been deployed as part of exploitation activity targeting a now-patched security flaw in Ivanti Connect Secure (ICS) appliances
Microsoft has shed light on a now-patched security flaw impacting Apple macOS that, if successfully exploited, could have allowed an attacker running as "root" to bypass the operating system's System Integrity Protection (SIP) and install malicious kernel drivers by loading third-party kernel extensions
Attackers can downgrade Windows kernel components to bypass security features such as Driver Signature Enforcement and deploy rootkits on fully patched systems. [...]
A recently patched security flaw in Google Chrome and other Chromium web browsers was exploited as a zero-day by North Korean actors in a campaign designed to deliver the FudModule rootkit
North Korean hackers have exploited a recently patched Google Chrome zero-day (CVE-2024-7971) to deploy the FudModule rootkit after gaining SYSTEM privileges using a Windows Kernel exploit. [...]
PLUS: NSA shares cloud security tips; Infosec training for Jordanian women; Critical vulnerabilities Infosec in brief Cybersecurity researchers informed Microsoft that Notorious North Korean hackers Lazarus Group discovered the "holy grail" of rootkit vulnerabilities in Windows last year, but Redmond still took six months to patch the problem.…