Backdoor
Atomic macOS infostealer adds backdoor for persistent attacks
Malware analyst discovered a new version of the Atomic macOS info-stealer (also known as ‘AMOS’) that comes with a backdoor, to attackers persistent access to compromised systems. The new component allows executing arbitrary remote commands, it survives reboots, and permits maintaining control over infected hosts indefinitely. MacPaw’s cybersecurity division Moonlock analyzed the backdoor in Atomic malware after a […]
Hackers abuse Microsoft ClickOnce and AWS services for stealthy attacks
A sophisticated malicious campaign that researchers call OneClik has been leveraging Microsoft’s ClickOnce software deployment tool and custom Golang backdoors to compromise organizations within the energy, oil, and gas sectors. The hackers rely on legitimate AWS cloud services (AWS, Cloudfront, API Gateway, Lambda) to keep the command and control (C2) infrastructure hidden. ClickOnce is a deployment […]
Sitecore CMS exploit chain starts with hardcoded ‘b’ password
A chain of Sitecore Experience Platform (XP) vulnerabilities allows attackers to perform remote code execution (RCE) without authentication to breach and hijack servers. Sitecore is a popular enterprise CMS used by businesses to create and manage content across websites and digital media. Discovered by watchTowr researchers, the pre-auth RCE chain disclosed today consists of three distinct […]
SentinelOne shares new details on China-linked breach attempt
SentinelOne has shared more details on an attempted supply chain attack by Chinese hackers through an IT services and logistics firm that manages hardware logistics for the cybersecurity firm. SentinelOne is an American endpoint protection (EDR/XDR) solutions provider that protects critical infrastructure in the country and numerous large enterprises. It is a high-value target for […]
Malicious npm packages posing as utilities delete project directories
Two malicious packages have been discovered in the npm JavaScript package index, which masquerades as useful utilities but, in reality, are destructive data wipers that delete entire application directories. The data wiper packages are ‘express-api-sync’ and ‘system-health-sync-api,’ and pose as database syncing and system health monitoring Ttools. According to open-source software security firm Socket, they […]
Hacker targets other hackers and gamers with backdoored GitHub code
A hacker targets other hackers, gamers, and researchers with exploits, bots, and game cheats in source code hosted on GitHub that contain hidden backdoors to give the threat actor remote access to infected devices. This campaign was discovered by Sophos researchers, whom a client contacted to estimate the danger of a remote access trojan called […]
Ransomware gangs increasingly use Skitnet post-exploitation malware
Ransomware gang members increasingly use a new malware called Skitnet (“Bossnet”) to perform stealthy post-exploitation activities on breached networks. The malware has been offered for sale on underground forums like RAMP since April 2024, but according to Prodaft researchers, it started gaining significant traction among ransomware gangs since early 2025. Prodaft told GeekFeed they have observed […]
Magento supply chain attack compromises hundreds of e-stores
A supply chain attack involving 21 backdoored Magento extensions has compromised between 500 and 1,000 e-commerce stores, including one belonging to a $40 billion multinational. Sansec researchers who discovered the attack report that some extensions were backdoored as far back as 2019, but the malicious code was only activated in April 2025. “Multiple vendors were […]
WordPress plugin disguised as a security tool injects backdoor
A new malware campaign targeting WordPress sites employs a malicious plugin disguised as a security tool to trick users into installing and trusting it. According to Wordfence researchers, the malware provides attackers with persistent access, remote code execution, and JavaScript injection. At the same time, it remains hidden from the plugin dashboard to evade detection. […]
Over 16,000 Fortinet devices compromised with symlink backdoor
Over 16,000 internet-exposed Fortinet devices have been detected as compromised with a new symlink backdoor that allows read-only access to sensitive files on previously compromised devices. This exposure is being reported by threat monitoring platform The Shadowserver Foundation, which initially reported 14,000 devices were exposed. Today, Shadowserver’s Piotr Kijewski told GeekFeed that the cybersecurity organization […]