UNC1549
No sourced public emblem in this profile.
reference profile · reported nexus: IR (not nationality)
UNC1549 is an Iranian threat actor linked to Tortoiseshell and potentially the IRGC. They have been active since at least June 2022, targeting entities worldwide with a focus on the Middle East. UNC1549 uses spear-phishing and credential harvesting for initial access, deploying custom malware like MINIBIKE and MINIBUS backdoors. They have also been observed using evasion techniques and a tunneler named LIGHTRAIL in their operations.
Source-reported aliases: Nimbus Manticore. Associations do not prove equivalence.
Target geography
Catalog-listed countries (associations, not attack counts): No country-level metadata
No bound claim-post feed for this label.
Historical casebook
No dated record curated yet; absence does not establish inactivity.
Planned Kinwilder coverage
Tentative editorial review windows, contingent on evidence and review; not promised publication dates or predictions of attacks.
No assigned review window.
References
https://www.mandiant.com/resources/blog/suspected-iranian-unc1549-targets-israel-middle-east
https://research.checkpoint.com/2025/nimbus-manticore-deploys-new-malware-targeting-europe