Suspicious Telegram Bot API getUpdates Polling for C2 by Millenium RAT (via proxy)
- Category
- proxy
- Author
- HuntRule
- Published
- 2026-09-27
- Updated
- 2026-09-27
ATT&CK techniques
C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects requests to the Telegram Bot API getUpdates method, the command-and-control channel Millenium RAT uses to poll operator instructions through api.telegram.org. Abusing Telegram bot infrastructure lets the RAT blend C2 traffic with legitimate services. Repeated polling from workstation processes warrants investigation.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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