Back to Rule

Rule History

SID: 2055844 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1Sep 13, 2024, 12:00 PM

ET INFO Observed DNS Query to Commonly Actor Abused Service (image .thum .io)

alert dns $HOME_NET any -> any any (msg:"ET INFO Observed DNS Query to Commonly Actor Abused Service (image .thum .io)"; dns.query; bsize:13; content:"image.thum.io"; nocase; classtype:misc-activity; sid:2055844; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_09_13, deployment Perimeter, confidence High, signature_severity Informational, tag TA_Abused_Service, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_13;)

Sep 13, 2024, 12:00 PM

Sep 13, 2024, 12:00 PM

Sep 13, 2024, 9:01 PM

Jul 28, 2025, 9:34 PM

rules/emerging-info.rules