All news with #apt28 tag

🔒 Recorded Future's Insikt Group observed APT28 conducting a sustained credential-phishing campaign targeting users of UKR.net between June 2024 and April 2025. The actor, tracked as APT28 or BlueDelta and assessed as affiliated with the GRU, used UKR.net-themed login pages hosted on legitimate services like Mocky and chained redirects from link shorteners and Blogger subdomains to capture passwords and 2FA codes. Phishing emails delivered PDFs that directed recipients to these pages, and the group has moved from abusing compromised routers to leveraging proxy tunneling services such as ngrok and Serveo.

⚠️ Google’s Threat Intelligence Group has identified a new class of AI-enabled malware that leverages large language models at runtime to generate and obfuscate malicious code. Notable families include PromptFlux, which uses the Gemini API to rewrite its VBScript dropper for persistence and lateral spread, and PromptSteal, a Python data miner that queries Qwen2.5-Coder-32B-Instruct to create on-demand Windows commands. GTIG observed PromptSteal used by APT28 in Ukraine, while other examples such as PromptLock, FruitShell and QuietVault demonstrate varied AI-driven capabilities. Google warns this "just-in-time AI" approach could accelerate malware sophistication and democratize cybercrime.

⚠️Google's Threat Intelligence team reports a shift from experimentation to operational use of AI by threat actors, including AI-enabled malware and prompt-based command generation. GTIG highlighted PROMPTSTEAL, linked to APT28 (FROZENLAKE), which queries a Hugging Face LLM to generate scripts for reconnaissance, document collection, and exfiltration, while adopting greater obfuscation and altered C2 methods. Google disabled related assets, strengthened model classifiers and safeguards with DeepMind, and urges defenders to update threat models, monitor anomalous scripting and C2, and incorporate threat intelligence into model- and classifier-level protections.

🛡️ Joe Marshall uses the VPN Filter investigation to illuminate the often-hidden personal cost of incident response. He recounts months of high-pressure analysis into a modular SOHO botnet attributed to APT28 that featured persistence and a potentially destructive kill switch, and describes how prolonged stress produced burnout, fractured relationships, and career impact. Marshall offers four practical mitigations — boundaries, peer support, unplugged self-care, and mandatory decompression — and underscores how a Cisco Talos Incident Response (IR) Retainer can ensure organizations respond decisively while protecting staff wellbeing.

🔒 NotDoor is a newly reported Outlook VBA backdoor attributed to the Russian state-sponsored actor APT28 that monitors incoming mail for a trigger phrase and enables data exfiltration, file drops, and remote command execution. S2 Grupo's LAB52 describes deployment via DLL side-loading of onedrive.exe, which loads a malicious SSPICLI.dll, disables macro protections, and runs Base64-encoded PowerShell to establish persistence. The implant watches for a trigger such as "Daily Report" and supports four commands — cmd, cmdno, dwn and upl — sending stolen files via Proton Mail.

🛡️ Researchers at S2 Grupo’s LAB52 disclosed NotDoor, a VBA-based Outlook backdoor attributed to Russia-backed APT28 that monitors incoming mail for trigger phrases to exfiltrate data, upload files and execute arbitrary commands. The malware abuses Outlook event-driven macros, employs DLL side-loading via a signed OneDrive.exe to load a malicious SSPICLI.dll, and persists by disabling security prompts and enabling macros. Organizations are advised to disable macros by default, monitor Outlook activity and inspect email-based triggers.