All news with #cobalt strike tag

🛡️ Gootloader has resumed operations after a seven-month pause, using SEO poisoning to promote fake legal-document sites that trick users into downloading malicious ZIP archives containing JScript loaders. The campaign now employs novel evasion techniques — a custom web font that renders readable keywords in the browser while the HTML source remains gibberish, and malformed ZIPs that extract a .js in Windows Explorer but a benign .txt for many analysis tools. Infected hosts receive follow-on payloads such as Cobalt Strike, backdoors including the Supper SOCKS5 implant, and bots that provide initial access for ransomware affiliates.

🧠 Kaspersky researchers have identified a sophisticated cyber-espionage campaign dubbed PassiveNeuron that has targeted government, financial, and industrial organizations across Asia, Africa, and Latin America since late 2024. The operation uses bespoke implants—Neursite (a C++ modular backdoor) and NeuralExecutor (a .NET loader)—alongside Cobalt Strike, leveraging compromised internal servers as intermediate C2s and a plugin architecture to maintain persistence and adapt tooling. Victims include internet-exposed servers; attackers have used SQL-based remote command execution, attempted ASPX web shells, deployed DLL loaders into the System32 directory, and in 2025 adopted a GitHub-based dead-drop resolver to retrieve C2 addresses.

🔍 UAT-8099, a Chinese-speaking cybercrime group, has been linked to a global SEO fraud operation that targets Microsoft IIS servers to manipulate search rankings and harvest high-value data. The actor gains access via vulnerable or misconfigured file upload features, deploys web shells and privilege escalation to enable RDP, then uses Cobalt Strike and a modified BadIIS module to serve malicious content when requests mimic Googlebot. Infections have been observed across India, Thailand, Vietnam, Canada, and Brazil, affecting universities, telecoms and technology firms and focusing on mobile users.

🛰️ Recorded Future has attributed a widespread cyber-espionage cluster to a Chinese state-sponsored actor it has named RedNovember, which overlaps with Microsoft's Storm-2077. From June 2024 to July 2025 the group targeted internet-facing perimeter appliances and used a mix of open-source and commercial tooling — notably Pantegana, Spark RAT and Cobalt Strike — to gain persistent access across government and private-sector networks worldwide. Attacks exploited known CVEs in VPNs, firewalls and other security appliances and leveraged a Go-based loader derived from LESLIELOADER, while administration infrastructure relied on VPN services such as ExpressVPN and Warp.

🔍 Group-IB links a broad cyber-espionage campaign, active since 2023 and ongoing into mid‑2025, to the ShadowSilk cluster targeting Central Asian and Asia‑Pacific government organizations. The operation, which has compromised at least 35 government victims, primarily seeks data theft and distributes stolen material on dark web forums. ShadowSilk uses phishing with password‑protected archives, commodity web panels such as JRAT and Morf Project, and post‑compromise tools like Cobalt Strike and Metasploit. Researchers found indicators of both Russian‑ and Chinese‑language operators and advise stronger email defenses, strict application control, regular patching and proactive threat hunting.

🔍 Cisco Talos describes UAT-7237, a Chinese‑speaking APT active since 2022 that compromised a Taiwanese web hosting provider to establish long‑term persistence. The actor relies largely on open‑source tooling, customized utilities and a tailored shellcode loader tracked as SoundBill, which can decode and execute Cobalt Strike beacons. UAT-7237 favors SoftEther VPN and RDP for access rather than mass web‑shell deployment. Talos provides IOCs and mitigation guidance for detection and blocking.