Rule History

SID: 2065865 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Nov 20, 2025, 12:00 PM

Message:

ET MALWARE Observed Aura Stealer Domain (magicupdate .cfd in TLS SNI)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Aura Stealer Domain (magicupdate .cfd in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".magicupdate.cfd"; endswith; fast_pattern; reference:md5,60e8761f9f26d34c6849c11815310a10; classtype:trojan-activity; sid:2065865; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_11_20, deployment Perimeter, malware_family AuraStealer, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_20;)

Created:

Nov 20, 2025, 12:00 PM

Updated:

Nov 20, 2025, 12:00 PM

DB Created:

Nov 20, 2025, 10:34 PM

DB Updated:

Nov 21, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules