At The Edge Clear: Feb 23 - Mar 2, 2026

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The Scanning Landscape Collapsed. Enterprise Campaigns Intensified.

Analysis Period: February 23 – March 2, 2026

Global scanning volume cratered 37% in a single day as major operations went dark. But Sophos exploitation surged 435%, RDP scanning hit 9.1 million sessions, and VPN credential campaigns entered their sixth consecutive week — confirming dedicated infrastructure independent of the broader scanning ecosystem.

By The Numbers:

  • 268M Sessions Observed
  • 435% Sophos Surge
  • 9.1M RPD Sessions
  • Week 6 VPN Siege

Preview Findings:

Sophos firewall exploitation intensified for the second consecutive week

Combined CVE-2022-1040 exploitation and user portal probing reached 276,358 sessions — a fivefold increase targeting enterprise perimeter infrastructure that provides direct access to internal networks.

One RDP operation from two IPs generated 9.1 million sessions

A dedicated MEVSPACE scanning operation dominated sensor traffic for the second straight week, pushing port 3389 from the 13th to the 3rd most-targeted destination port. Exposed RDP remains the primary ransomware entry vector

VPN credential siege rotates to new vendors

Scanning pressure against Cisco and Palo Alto portals climbed while SonicWall activity declined 86% following GreyNoise's published analysis. Sophos emerged as a significant new rotation target.

Global scanning infrastructure reshuffled overnight

A custom SYN scanner collapsed 86%, UCLOUD declined 63%, and ColoCrossing nearly disappeared — yet enterprise targeted campaigns intensified against the declining backdrop, revealing which operations run on dedicated infrastructure.

Want the full brief?

GreyNoise customers get detailed briefs with complete IOCs, infrastructure attribution, detection guidance, and role-based recommendations every week.

Request a demo to learn more about GreyNoise's data and intelligence.

Read the transcript

The Scanning Landscape Collapsed. Enterprise Campaigns Intensified.

Analysis Period: February 23 – March 2, 2026

Global scanning volume cratered 37% in a single day as major operations went dark. But Sophos exploitation surged 435%, RDP scanning hit 9.1 million sessions, and VPN credential campaigns entered their sixth consecutive week — confirming dedicated infrastructure independent of the broader scanning ecosystem.

By The Numbers:

  • 268M Sessions Observed
  • 435% Sophos Surge
  • 9.1M RPD Sessions
  • Week 6 VPN Siege

Preview Findings:

Sophos firewall exploitation intensified for the second consecutive week

Combined CVE-2022-1040 exploitation and user portal probing reached 276,358 sessions — a fivefold increase targeting enterprise perimeter infrastructure that provides direct access to internal networks.

One RDP operation from two IPs generated 9.1 million sessions

A dedicated MEVSPACE scanning operation dominated sensor traffic for the second straight week, pushing port 3389 from the 13th to the 3rd most-targeted destination port. Exposed RDP remains the primary ransomware entry vector

VPN credential siege rotates to new vendors

Scanning pressure against Cisco and Palo Alto portals climbed while SonicWall activity declined 86% following GreyNoise's published analysis. Sophos emerged as a significant new rotation target.

Global scanning infrastructure reshuffled overnight

A custom SYN scanner collapsed 86%, UCLOUD declined 63%, and ColoCrossing nearly disappeared — yet enterprise targeted campaigns intensified against the declining backdrop, revealing which operations run on dedicated infrastructure.

Want the full brief?

GreyNoise customers get detailed briefs with complete IOCs, infrastructure attribution, detection guidance, and role-based recommendations every week.

Request a demo to learn more about GreyNoise's data and intelligence.