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.
The same group is tracked under different names by different vendors.
| Vendor | Name |
|---|---|
| OSINT | UAC-0255 |
No techniques mapped yet.
No IOCs extracted yet from reports naming this actor.
Every report in the Global Intel Library that names Cyber Serp, newest first. Open any report to see the full analysis with provenance.
No reports in the Lore library name this actor yet.
Indicators from free threat feeds (abuse.ch ThreatFox, AlienVault OTX) attributed to Cyber Serp. Each row shows why it was linked and where it came from.
No feed indicators linked to this actor yet. Feeds are checked every hour.
Open-source reports about this actor collected from MISP Galaxy.