Versions (4)
Version DetailsCurrent
Rev: 1 • Mar 30, 2021, 12:00 PMET EXPLOIT Windows DNS Server RCE Attempt Inbound (CVE-2021-26897)
alert tcp any any -> $DNS_SERVERS 53 (msg:"ET EXPLOIT Windows DNS Server RCE Attempt Inbound (CVE-2021-26897)"; dsize:>1300; content:"|29 00|"; offset:2; depth:2; threshold:type limit, count 45, seconds 90, track by_src; reference:cve,2021-26897; classtype:attempted-admin; sid:2032348; rev:1; metadata:attack_target DNS_Server, created_at 2021_03_30, cve CVE_2021_26897, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_30;)
Mar 30, 2021, 12:00 PM
Mar 30, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 12, 2025, 9:34 PM
rules/emerging-exploit.rules