Microsoft Exchange ECP Probe (ProxyShell / ProxyLogon) for 2026-05-05
Last Updated: 12:00 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
| United States of America | 4 | 57.1% |
| India | 1 | 14.3% |
| Germany | 1 | 14.3% |
| Netherlands | 1 | 14.3% |
IP Address : ASN : City/Provider
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143.244.168.161 : AS14061 digitalocean llc : North Bergen
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159.89.174.87 : AS14061 digitalocean llc : Bengaluru
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164.92.107.174 : AS14061 digitalocean llc : United States of America
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167.172.232.142 : AS14061 digitalocean llc : Clifton
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207.154.212.47 : AS14061 digitalocean llc : Frankfurt am Main
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209.38.208.202 : ASNone : United States of America
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64.225.75.246 : AS14061 digitalocean llc : Amsterdam