What are web shells and why do attackers love them?

Tiny PHP backdoors for remote control. Persist post-exploit, run payloads quietly.

Are Microsoft Azure servers compromised by these scans?

Unclear—could be renters or insiders. But it shows cloud's no panacea.

Monitor file changes, scan for base64 shells, check processes. Blacklists

Everyone figured web shells were yesterday's news. Then four Microsoft IPs lit up the scans for 287 sneaky files—hinting at cloud-targeted chaos.

Threat Digest Apr 07, 2026 3 min read

Four Microsoft IPs scanned 287 web shell paths, heavy on WordPress camouflage. 𝕏
Filename blacklists fail—attackers cycle names endlessly. 𝕏
Real defense: Patch, monitor changes, harden perms—not lists. 𝕏

Published by

Threat intelligence. Zero noise.

#Microsoft Azure #Microsoft Azure attacks #Microsoft Azure scans #WordPress attacks #WordPress vulnerabilities #persistence techniques #web shells #webshells

Get the best Cybersecurity stories of the week in your inbox — no noise, no spam.

Originally reported by SANS Internet Storm Center