Microsoft Exchange ECP Probe (ProxyShell / ProxyLogon) for 2026-09-13
Sep 13, 2026
Exploitation
Last Updated: 00:00 UTC
The Exchange Control Panel (/ecp/) is the attack surface for ProxyLogon (CVE-2021-26855) and ProxyShell (CVE-2021-34473/34523/31207). Both exploit chains begin with ECP requests and achieve unauthenticated RCE leading to ASPX webshell deployment on the Exchange server.
CVE References
MITRE ATT&CK
Tactic: Initial Access (TA0001)
Technique: T1190 — Exploit Public-Facing Application
Observed URIs
Attackers by Country
| Germany | 4 | 66.7% |
| Canada | 1 | 16.7% |
| United States of America | 1 | 16.7% |
IP Address : ASN : City/Provider
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138.197.191.87 : AS14061 digitalocean llc : Frankfurt am Main
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139.59.132.8 : AS14061 digitalocean llc : Frankfurt am Main
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159.89.127.165 : AS14061 digitalocean llc : Toronto
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178.128.207.138 : AS14061 digitalocean llc : Frankfurt am Main
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20.14.73.46 : AS8075 microsoft corporation : United States of America
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46.101.111.185 : AS14061 digitalocean llc : Frankfurt am Main