Suspicious Telegraph-Hosted Encrypted Payload Retrieval (via proxy)

PremiumReviewedSigma · Medium · v1
Category
proxy
Author
HuntRule
Published
2026-09-22
Updated
2026-09-22

ATT&CK techniques

C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. Exfiltration

  13. Impact

What it detects

This rule detects retrieval of .gpg or .dat files from telegra.ph, the abused public publishing service used by the FakeBat Payk RunPE arsenal to host second-stage encrypted payloads. Legitimate Telegraph articles do not serve encrypted binary blobs, so this pattern indicates staged malware delivery. It follows MSIX-based malvertising infections.

Related detections9 linkedT1105 — drag to rearrange
PowerShell Hidden DownloadString Execution via ClickFix Fake CAPTCHA (via process_creation)
Suspicious Download of XMRig Miner via Wget (JINX-0132)
Suspicious Linux Payload Fetch Piping curl Output Into a Shell
Malicious Python Inline Base64 Reverse Shell Execution
Suspicious Bitsadmin Transfer Download
Suspicious PowerShell Hidden Download Cradle via IEX
Suspicious PowerShell WebClient DownloadString Payload Retrieval via Script (via ps_script)
Suspicious Plist Download via curl on macOS
Malicious IoT Malware Download and Execution Cradle
Suspicious Telegraph-Hosted Encrypted Payload Retrieval (via proxy)
Pivot detection · T1105 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.