Mustard Tempest
No sourced public emblem in this profile.
reference profile · reported nexus: Unknown (not nationality)
Mustard Tempest is a threat actor that primarily uses malvertising as their main technique to gain access to and profile networks. They deploy FakeUpdates, disguised as browser updates or software packages, to lure targets into downloading a ZIP file containing a JavaScript file. Once executed, the JavaScript framework acts as a loader for other malware campaigns, often Cobalt Strike payloads. Mustard Tempest has been associated with the cybercrime syndicate Mustard Tempest, also known as EvilCorp, and has been involved in ransomware attacks using payloads such as WastedLocker, PhoenixLocker, and Macaw.
Source-reported aliases: DEV-0206, Purple Vallhund. 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.