Report for IP: 51.103.136.19

Threat LevelHIGH70/1002 rule types across 2 attack categories
4 incidents on record · 2 rule types · active attacker + blocklisted · active over 2 days · last seen 3d ago
PTR N/A
Org / ASN Microsoft Azure Cloud (switzerlandnorth)
Country 🇨🇭 Switzerland
City Zurich, Zurich
Timezone Europe/Zurich

Attack Analysis

Webshell Upload Scan
This IP rapidly probed multiple non-existent PHP paths in under 60 seconds — a hallmark of automated webshell scanning tools hunting for previously uploaded backdoors or vulnerable file-upload endpoints. If successful, a webshell grants the attacker full remote code execution on the server.
Listed on 1 threat-intelligence blocklist
  • FireHOL level2 — FireHOL level2 lists addresses seen attacking in the last 48 hours across many sensors. It is large and volatile: addresses enter and leave quickly, so on its own this is weaker, recent-activity evidence.
Only short-lived or context lists match, so this is weak evidence on its own.

Reports (4)

Date Severity Description
27 Sep 2026 - 13:12 high Web: Webshell scan — 3+ unknown PHP probes in 60s
27 Sep 2026 - 13:11 low FireHOL level2 (48h recent-attacker feed, large & volatile)
25 Sep 2026 - 17:43 high Web: Webshell scan — 3+ unknown PHP probes in 60s
25 Sep 2026 - 17:41 high Web: Webshell scan — 3+ unknown PHP probes in 60s