Rule History

SID: 2047121 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2 • Jul 7, 2023, 12:00 PM

Message:

ET MALWARE DNS Query for TA401 Controlled Domain (cryptoanalyzetech .com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE DNS Query for TA401 Controlled Domain (cryptoanalyzetech .com)"; dns.query; bsize:21; content:"cryptoanalyzetech.com"; nocase; reference:url,github.com/Insikt-Group/Research/blob/master/BlueCharlie%2C%20Previously%20Tracked%20as%20TAG-53%2C%20Continues%20to%20Deploy%20New%20Infrastructure%20in%202023/BlueCharlie%2C%20Previously%20Tracked%20as%20TAG-53%2C%20Continues%20to%20Deploy%20New%20Infrastructure%20in%202023.csv; classtype:trojan-activity; sid:2047121; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_07_07, deployment Perimeter, confidence High, signature_severity Major, tag TA401, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_01_26, reviewed_at 2024_01_26, former_sid 2854763;)

Created:

Jul 7, 2023, 12:00 PM

Updated:

Jan 26, 2024, 12:00 PM

DB Created:

Aug 9, 2023, 10:00 PM

DB Updated:

Aug 20, 2025, 9:35 PM

Filename:

rules/emerging-malware.rules