backdoor

Attackers hacked Barracuda ESG appliances via zero-day since October 2022
Barracuda says that the recently discovered compromise of some of it clients’ ESG appliances via a zero-day vulnerability (CVE-2023-2868) resulted in the deployment of …

TP-Link routers implanted with malicious firmware in state-sponsored attacks
A Chinese state-sponsored APT group implanted malicious firmware into TP-Link routers as part of attack campaigns aimed at European foreign affairs entities, say Check Point …

Inadequate patches and advisories increase cyber risk
Trend Micro’s overall threat detections increased by 55%, and the number of blocked malicious files surged by 242% due to indiscriminate targeting by threat actors who …

China-aligned APT is exploring new technology stacks for malicious tools
ESET researchers have analyzed MQsTTang, a custom backdoor that they attribute to the China-aligned Mustang Panda APT group. This backdoor is part of an ongoing campaign that …

Microsoft Exchange admins advised to expand antivirus scanning
After having stressed the importance of keeping Exchange servers updated last month, Microsoft is advising administrators to widen the scope of antivirus scanning on those …

Defenders on high alert as backdoor attacks become more common
Although ransomware‘s share of incidents declined only slightly from 2021 to 2022, defenders were more successful detecting and preventing ransomware, according to IBM. …

Attackers use novel technique, malware to compromise hypervisors and virtual machines
Unknown attackers wielding novel specialized malware have managed to compromise VMware ESXi hypervisors and guest Linux and Windows virtual machines, Mandiant threat analysts …

Linux variant of the SideWalk backdoor discovered
ESET researchers have discovered a Linux variant of the SideWalk backdoor, one of the multiple custom implants used by the SparklingGoblin APT group. Commands with different …

CloudMensis backdoor spies on users of compromised Macs
ESET researchers discovered CloudMensis, a macOS backdoor that spies on users of compromised Macs and uses public cloud storage services to communicate back and forth with its …

Researchers unearth highly evasive “parasitic” Linux malware
Security researchers at Intezer and BlackBerry have documented Symbiote, a wholly unique, multi-purpose piece of Linux malware that is nearly impossible to detect. “What …

Attackers employ novel methods to backdoor French organizations
An advanced threat actor has been spotted using distinctive, novel methods to backdoor French entities in the construction, real estate, and government industries. How the …

A new multi-platform backdoor is leveraged by an advanced threat actor
A novel multi-platform backdoor dubbed SysJoker has been successfully evading security solutions since mid-2021. “In the Linux and macOS versions, it masquerades as a …