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SID: 2051163 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1Feb 9, 2024, 12:00 PM

ET PHISHING DNS Query to TA455 Domain (1stemployer .com)

alert dns $HOME_NET any -> any any (msg:"ET PHISHING DNS Query to TA455 Domain (1stemployer .com)"; dns.query; dotprefix; content:".1stemployer.com"; nocase; endswith; classtype:social-engineering; sid:2051163; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_02_09, deployment Perimeter, confidence High, signature_severity Major, tag TA455, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_29, former_sid 2856337;)

Feb 9, 2024, 12:00 PM

Feb 29, 2024, 12:00 PM

Sep 21, 2024, 3:00 AM

Aug 13, 2025, 9:35 PM

rules/emerging-phishing.rules