All news with #unc1549 tag

Iranian-backed UNC1549 Deploys TWOSTROKE and DEEPROOT

🛡️ Mandiant has linked suspected Iranian espionage actors to a sustained campaign by UNC1549 that deployed backdoors such as TWOSTROKE and DEEPROOT against aerospace, aviation, and defense organizations in the Middle East. Operating from late 2023 through 2025, the group abused trusted third parties and VDI sessions to pivot into customer environments and leveraged highly targeted, role‑relevant phishing. Observed operations combined credential theft, lateral movement, custom tunnellers and credential‑stealing utilities to execute long‑term reconnaissance and data exfiltration.

Analysis of UNC1549 TTPs Targeting Aerospace & Defense

🔍 This joint analysis from Google Threat Intelligence and Mandiant describes UNC1549 activity observed from late 2023 through 2025 against aerospace, aviation, and defense organizations. The group commonly exploited trusted third‑party relationships, VDI breakouts, and highly targeted spear phishing to gain access, then deployed custom backdoors and tunneling tools to maintain stealth. The report provides IOCs, YARA rules, and detection guidance for Azure and enterprise environments.

Iran-linked UNC1549 Compromises 34 Devices in Telecoms

🔒 PRODAFT links a recruitment-themed espionage campaign to an Iran-affiliated cluster tracked as Subtle Snail and attributed to UNC1549 (aka TA455), reporting infiltration of 34 devices across 11 telecommunications organizations in Canada, France, the UAE, the UK and the US. Operators posed as HR recruiters on LinkedIn and delivered a ZIP-based dropper that uses DLL side-loading to install the modular backdoor MINIBIKE, which harvests credentials, browser data, screenshots, keystrokes and system details. MINIBIKE communicates with C2 infrastructure proxied through Azure services, employs anti-analysis measures and achieves persistence via registry modifications to enable long-term access and data exfiltration.