Possible Gamaredon Dead-Drop C2 via Telegraph and GoFile Web Services

ATT&CK techniques

C2 → Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1102Web Service
Exfiltration
- T1567.002Exfiltration to Cloud Storage
Impact

What it detects

This rule detects DNS resolution of api.telegra.ph and gofile.io, legitimate web services abused by Gamaredon in 2025 as dead-drop resolvers and exfiltration channels through its PteroOdd and PteroEffigy tools. The group stores C2 configuration and stages stolen data on these platforms to blend with normal web traffic. Detecting these lookups is important because they reveal web-service based command-and-control and data exfiltration that evades domain reputation controls.

Reporting behind it

Related detections9 linkedT1567.002 — drag to rearrange

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Malicious Data Exfiltration to MEGA via Rclone

Possible Gamaredon Dead-Drop C2 via Telegraph and GoFile Web Services

Pivot detection · T1567.002 · 9 related

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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