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SID: 2021057 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2May 5, 2015, 12:00 PM

ET MALWARE njRAT Variant Outbound CnC Beacon

alert tcp $HOME_NET any -> $EXTERNAL_NET !80 (msg:"ET MALWARE njRAT Variant Outbound CnC Beacon"; flow:established,to_server; content:"|7c|nj-q8"; endswith; classtype:command-and-control; sid:2021057; rev:2; metadata:attack_target Client_Endpoint, created_at 2015_05_05, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2019_09_28, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)

May 5, 2015, 12:00 PM

Sep 28, 2019, 12:00 PM

Sep 21, 2024, 3:00 AM

May 30, 2025, 12:04 AM

rules/emerging-malware.rules