Rule History

SID: 2027836 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2 • Aug 9, 2019, 12:00 PM

Message:

ET MALWARE ELF/Emptiness v2 XOR (b2bb01039307baa2) CnC Checkin

Rule:

alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE ELF/Emptiness v2 XOR (b2bb01039307baa2) CnC Checkin"; flow:established,to_server; dsize:24; content:"d3ec7975f76aefdbfcdc3c3e"; depth:24; fast_pattern; endswith; reference:url,blog.netlab.360.com/emptiness-a-new-evolving-botnet/; classtype:command-and-control; sid:2027836; rev:2; metadata:affected_product Linux, created_at 2019_08_09, deployment Perimeter, malware_family Emptiness, performance_impact Low, confidence High, signature_severity Major, tag DDoS, updated_at 2019_09_28;)

Created:

Aug 9, 2019, 12:00 PM

Updated:

Sep 28, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-malware.rules