MacSync Stealer is a newly discovered macOS infostealer actively distributed through a sophisticated malvertising campaign on Google Ads that impersonates Anthropic’s Claude Code CLI. Security researchers from Beezlebub have uncovered the complete atta…
CISA confirms BlueHammer (CVE-2026-33825) is now used in ransomware attacks to gain SYSTEM privileges through Microsoft Defender. BlueHammer, tracked as CVE-2026-33825, has moved from proof-of-concept noise to real ransomware attacks in the wild, the US CISA confirms. BlueHammer allows attackers to escalate privileges locally in Microsoft Defender. The vulnerability, along with two other zero-days dubbed […]
RustDuck is a small, evolving DDoS botnet migrating to Rust. It uses advanced encryption, anti-analysis evasion, and exploits known IoT flaws. Since February 2026, researchers at QiAnXin’s XLab have been tracking a new malware family, called RustDuck, that hijacks routers, cameras, Android set-top boxes, and exposed servers, then uses them to flood targets with junk […]
A fake FIFA World Cup 2026 T-shirt giveaway scam is spreading Voidrift malware through personalized emails using company logos and trusted websites to bypass security filters.
Attackers are exploiting CVE-2026-48558, a recently patched authentication bypass vulnerability in SimpleHelp RMM, to drop the novel Djinn Stealer malware on victim computers. The malware is capable of targeting Windows, macOS, and Linux systems, and &…
The threat actor is focused on collecting credentials, SSH keys, cryptocurrency wallets, and development tooling.
The post Critical SimpleHelp Vulnerability Exploited for Malware Delivery appeared first on SecurityWeek.
Microsoft shut down the StegoAd campaign, which used 119 malicious Edge extensions, hit 2.6M installs, and ran undetected for two years. Microsoft just shut down one of the more technically clever malicious extension campaigns it’s ever documented. The operation, named StegoAd, ran 119 extensions on the Edge Add-ons store, racked up roughly 2.6 million installs, […]
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter More Than 4,000 Legacy Routers Compromised by AryStinger, Turned into Global Attack Proxies for Hackers A VBScript campaign distributed through WhatsApp deploying RMM software Lost in relocation: analysis of a new loader distributing CASTLESTEALER […]
A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. New FBI Alert: Russian Intelligence Uses Signal Recovery Keys to Access Messages Hospitality Sector Hit by […]
Woodgnat Hackers use Backdoor.Mistic, a stealthy RAT, to let brokers compromise networks and sell entry points to ransomware groups, putting firms at risk.