Rule History

SID: 2039758 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 2 • Nov 9, 2022, 12:00 PM

Message:

ET MALWARE JS/Cloud9 Domain (download .loginserv .net) in DNS Lookup

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE JS/Cloud9 Domain (download .loginserv .net) in DNS Lookup"; dns.query; content:"download.loginserv.net"; nocase; bsize:22; reference:url,www.zimperium.com/blog/the-case-of-cloud9-chrome-botnet/; classtype:trojan-activity; sid:2039758; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_11_09, deployment Perimeter, malware_family JS_Cloud9, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_23, reviewed_at 2024_09_23;)

Created:

Nov 9, 2022, 12:00 PM

Updated:

Sep 23, 2024, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Aug 28, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules