Rule History

SID: 2044891 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2 • Apr 5, 2023, 12:00 PM

Message:

ET MALWARE Malicious NetSupport Loader Domain in DNS Lookup (tumnt .top)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Malicious NetSupport Loader Domain in DNS Lookup (tumnt .top)"; dns.query; content:"tumnt.top"; nocase; bsize:9; reference:url,twitter.com/1ZRR4H/status/1643512391940952064; classtype:trojan-activity; sid:2044891; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_05, deployment Perimeter, deprecation_reason Age, malware_family NetSupport_RAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_24;)

Created:

Apr 5, 2023, 12:00 PM

Updated:

Apr 24, 2023, 12:00 PM

DB Created:

Apr 5, 2023, 10:00 PM

DB Updated:

Aug 25, 2025, 9:35 PM

Filename:

rules/emerging-malware.rules