All news with #threat research tag

🛡️ Proofpoint has identified a previously unknown cluster it calls UNK_SmudgedSerpent that targeted academics and foreign policy experts between June and August 2025. Attackers initiated benign, topical conversations and used think‑tank impersonation alongside an OnlyOffice‑styled link that led to health-themed domains harvesting credentials and delivering a ZIP with an MSI. The installer deployed remote monitoring and management tooling — notably PDQConnect and later ISL Online — and although email activity paused in early August, related infrastructure later surfaced hosting TA455-linked malware, leaving attribution unresolved.

⚠️Google's Threat Intelligence Group reports a surge in malware that integrates large language models to enable dynamic, mid-execution changes—what Google calls "just-in-time" self-modification. Notable examples include the experimental PromptFlux VBScript dropper and the PromptSteal data miner, plus operational threats like FruitShell and QuietVault. Google disabled abused Gemini accounts, removed assets, and is hardening model safeguards while collaborating with law enforcement.

⚠️ The Google Threat Intelligence Group (GTIG) reports that adversaries are evolving beyond simple productivity uses of AI toward operational misuse. Observed behaviors include state-sponsored actors from North Korea, Iran and the People's Republic of China using AI for reconnaissance, automated phishing lure creation and data exfiltration. The report documents AI-powered malware that can generate and modify malicious scripts in real time and attackers exploiting deceptive prompts to bypass model guardrails. Google says it has disabled assets linked to abuse and applied intelligence to improve classifiers and harden models against misuse.

🔍 Check Point Research applied generative AI to accelerate reverse engineering of XLoader 8.0, reducing days of manual work to hours. The models autonomously identified multi-layer encryption routines, decrypted obfuscated functions, and uncovered hidden command-and-control domains and fake infrastructure. Analysts were able to extract IoCs far more quickly and integrate them into defenses. The AI-assisted workflow delivered timelier, higher-fidelity threat intelligence and improved protection for users worldwide.

🔍 Kaspersky details two tied campaigns, GhostCall and GhostHire, that target Web3 and blockchain professionals worldwide and emphasize macOS-focused infection chains and social-engineering lures. The attacks deploy a range of payloads — DownTroy, CosmicDoor, RooTroy and others — to harvest secrets, escalate access, and persist. Guidance stresses user vigilance, strict dependency vetting, and centralized secrets management. Kaspersky links the activity to the BlueNoroff/Lazarus cluster and notes the actor has increasingly used generative AI to craft imagery and accelerate malware development.

🛡️ Herodotus is a newly observed Android malware family offered as a MaaS that deliberately mimics human input timing to evade behavior-based detection. Threat Fabric says operators likely linked to Brokewell are distributing a dropper via smishing targeting Italian and Brazilian users. The installer requests Accessibility access and uses deceptive overlays to hide permission flows while a built-in "humanizer" inserts randomized 0.3–3s delays between keystrokes to imitate human typing. Users should avoid sideloading APKs, enable Play Protect, and promptly review or revoke Accessibility permissions for unfamiliar apps.

⚠️ Kaspersky reports a patched Google Chrome zero-day (CVE-2025-2783) was exploited to deploy a newly documented spyware called LeetAgent linked to Italian firm Memento Labs. The operation used personalized, short‑lived phishing links to a Primakov Readings lure that triggered a sandbox escape in Chromium browsers and dropped a loader to launch the implant. Targets included media, universities, research centers, government and financial organizations in Russia and Belarus.

🛡️ Trellix researchers report that the threat actor SideWinder has evolved its tradecraft in 2025 by adopting a PDF + ClickOnce infection chain alongside previously used Word exploit vectors. Four spear‑phishing waves from March through September targeted a European embassy in New Delhi and organizations in Sri Lanka, Pakistan and Bangladesh, using tailored lures and a signed MagTek executable that side‑loads a malicious DLL. The DLL decrypts and runs a .NET loader (ModuleInstaller) which fetches StealerBot, a .NET implant capable of reverse shells, delivering additional payloads, and collecting screenshots, keystrokes, credentials and files.

🔎 SEQRITE's APT-Team describes how they used VirusTotal to pivot from isolated clues to comprehensive campaign mapping, tracking UNG0002, Silent Lynx, and DRAGONCLONE between May 2024 and May 2025. Their work combined malware configuration extraction, LNK metadata, code-sign certificate pivots, YARA and Sigma rules, and Livehunt queries to surface related samples and previously unreported implants. The post highlights practical hunting queries and pivots — public key and LNK-ID searches, submitter geofilters, and malware_config values — that enabled attribution and expanded detection across multiple Asian geographies.

🔍 Cisco Talos revealed a new PlugX malware variant active since 2022 that targets telecommunications and manufacturing organizations across Central and South Asia. The campaign leverages abuse of legitimate software, DLL-hijacking techniques and stealthy persistence to evade detection, and it shares technical fingerprints with the RainyDay and Turian backdoors. Talos describes the activity as sophisticated and ongoing. Organizations should update endpoint, email and network protections, review DLL-hijack mitigations and proactively hunt for related indicators.

🛡️ Cisco Talos describes an ongoing campaign in which Naikon-linked actors abused DLL search order hijacking to load multiple backdoors, including RainyDay, a customized PlugX variant and Turian. The report highlights shared loaders that use XOR and RC4 decryption with identical keys and an XOR-RC4-RtlDecompressBuffer unpacking chain. Talos notes the PlugX variant adopts a RainyDay-style configuration and includes embedded keylogging and persistence, with activity observed since 2022 targeting telecom and manufacturing organizations in Central and South Asia. Talos published IOCs and recommended mitigations for detection and prevention.

🔍 Palo Alto Networks Unit 42 is tracking an SEO poisoning campaign dubbed Operation Rewrite that employs a native IIS implant called BadIIS. The module inspects User-Agent strings, identifies search engine crawlers, and fetches poisoned content from a remote C2 to inject keywords and links so compromised sites artificially rank for targeted queries. Unit 42 observed multiple tooling variants — lightweight ASP.NET handlers, a managed .NET IIS module, and an all‑in‑one PHP script — and reports a focus on East and Southeast Asia, particularly Vietnam.

🛡️ SentinelOne researchers disclosed MalTerminal, a Windows binary that integrates OpenAI GPT-4 via a deprecated chat completions API to dynamically generate either ransomware or a reverse shell. The sample, presented at LABScon 2025 and accompanied by Python scripts and a defensive utility called FalconShield, appears to be an early — possibly pre-November 2023 — example of LLM-embedded malware. There is no evidence it was deployed in the wild, suggesting a proof-of-concept or red-team tool. The finding highlights operational risks as LLMs are embedded into offensive tooling and phishing chains.

🛡️ Lumen Technologies' Black Lotus Labs reports that SystemBC, a C-based SOCKS5 proxy malware, powers roughly 80% of the REM Proxy network and averages about 1,500 compromised hosts per day. The botnet operates through more than 80 C2 servers and mainly targets VPS instances from major commercial providers, often via dropped shell scripts that install the proxy implant. REM Proxy also advertises pools of compromised Mikrotik routers and open proxies and has been used by actors tied to TransferLoader and the Morpheus ransomware group.

🛡️ ESET researchers identified HybridPetya in late July 2025 after suspicious samples were uploaded to VirusTotal. The malware resembles Petya/NotPetya and encrypts the NTFS Master File Table (MFT), while also capable of installing a malicious EFI application on the EFI System Partition to persist on UEFI systems. One analyzed variant exploits CVE-2024-7344 using a crafted cloak.dat to bypass UEFI Secure Boot on outdated systems. ESET telemetry shows no evidence of active, widespread deployments.

🔁 In May 2025 the EU sanctioned Moldova-based PQ Hosting and its owners, the Neculiti brothers, for alleged links to Kremlin hybrid warfare. Recorded Future and KrebsOnSecurity reporting show Stark Industries quickly rebranded to the[.]hosting under Dutch WorkTitans BV on 24 June 2025 while key address space and assets moved to PQ Hosting Plus S.R.L. Netherlands-based MIRhosting appears to host and manage the new entities, suggesting the sanctions achieved little lasting disruption.

🔍 Researchers have identified two malware strains: a modular macOS backdoor named CHILLYHELL and a Go-based cross-platform RAT called ZynorRAT. Jamf Threat Labs links CHILLYHELL to UNC4487, noting extensive host profiling, multiple persistence techniques, timestomping, and multi-protocol C2 over HTTP and DNS. The notarized CHILLYHELL sample (uploaded to VirusTotal on May 2, 2025) underscores that signed binaries can be malicious. Sysdig analysis shows ZynorRAT is managed via a Telegram bot and supports file exfiltration, screenshots, system enumeration, and persistence on Linux and Windows.

📢 BlueHat Asia 2025 in Bengaluru is now accepting talk submissions through September 5, 2025. Hosted by the Microsoft Security Response Center (MSRC), the two-day event on November 5–6 invites security researchers and responders of all experience levels to present findings, lessons learned, and industry guidance. Topics of interest include vulnerability discovery and mitigation, exploit development and detection, AI/ML security, IoT/OT and critical infrastructure protection, DFIR, social engineering, and reverse engineering. Submissions require a title and a sufficiently detailed abstract; a full academic paper is not necessary, and MSRC cases may be presented only after at least 30 days have passed since the associated fix was published. To explore co-presentation or partnership opportunities, contact bluehat@microsoft.com.

📣 BlueHat Asia 2025, hosted by the Microsoft Security Response Center (MSRC), will take place in Bengaluru, India on November 5–6, 2025. The Call for Papers is open through September 14, 2025, and submissions require only a talk title and a sufficiently detailed abstract—no formal paper is necessary. Speakers are invited to present practical research and lessons across topics such as vulnerability discovery and mitigation, exploit development and detection, securing AI and machine learning, IoT/OT and critical infrastructure security, DFIR, social engineering, malware, and reverse engineering. If you’ve reported a case to MSRC, consider presenting once at least 30 days have passed since the fix was published and impacted customers were notified.

📝 Unit 42 has launched Insights, a new article series that connects readers directly to researchers and consultants with candid, real-time thinking about threats and incident response. Unlike formal threat assessments, these pieces share early observations, theories, and the kinds of practitioner conversations that don’t fit a traditional research paper. The series complements Unit 42’s rigorously reviewed reports by exposing the messier, immediate judgments that shape investigations and client guidance.