Versions (3)
Version DetailsCurrent
Rev: 2 • May 26, 2015, 12:00 PMET MALWARE Linux/Moose NAT Traversal CnC Beacon set
alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Linux/Moose NAT Traversal CnC Beacon set"; flow:established,to_server; dsize:4; content:"|18 00 00 00|"; fast_pattern; flowbits:set,ET.Linux.Moose; flowbits:noalert; reference:url,welivesecurity.com/wp-content/uploads/2015/05/Dissecting-LinuxMoose.pdf; classtype:command-and-control; sid:2021150; rev:2; metadata:attack_target Client_Endpoint, created_at 2015_05_26, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_10_08, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)
May 26, 2015, 12:00 PM
Oct 8, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules