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UNC5291 is a targeted reconnaissance and probing activity cluster tracked by Mandiant, with observed targets in the energy, defense, academic, and health sectors. Its targeting includes U.S. energy and defense organizations. The cluster targeted Citrix NetScaler ADC in December 2023 before shifting to probing Ivanti Connect Secure appliances in mid-January 2024. UNC5291's established activity centers on probing internet-facing infrastructure. Successful compromise of Ivanti Connect Secure appliances has not been directly observed for this cluster, and no specific malware deployment or post-compromise capabilities have been established.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.