Cyber Serp
No sourced public emblem in this profile.
reference profile · reported nexus: RU (not nationality)
UAC-0255 is a threat actor that conducted a phishing campaign impersonating CERT-UA to distribute the AGEWHEEZE RAT, targeting organizations in Ukraine's public and private sectors. The campaign is part of a broader trend of using trusted identities to enhance victim engagement, as seen in previous activities like UAC-0190 and UAC-0252. CERT-UA identified UAC-0255 after discovering links to the CyberSerp Telegram channel, which claimed responsibility for the attack. The activity is documented under the identifier CERT-UA#21075, with detection rules available for cybersecurity analysts.
Source-reported aliases: UAC-0255. 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://socprime.com/blog/uac-0255-distributing-agewheeze-rat/
https://cert.gov.ua/article/6288047