ET MALWARE Observed Ducktail Domain (mountainseagroup3 .top in TLS SNI)

SID: 2051146Rev: 111 viewsHistory

Sourceet/open

CreatedFebruary 28, 2024

UpdatedFebruary 28, 2024

Classificationtrojan-activity

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Ducktail Domain (mountainseagroup3 .top in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".mountainseagroup3.top"; endswith; fast_pattern; reference:url,twitter.com/suyog41/status/1762742010900021572; classtype:trojan-activity; sid:2051146; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_02_28, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_28, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)

References

url	twitter.com/suyog41/status/1762742010900021572

Metadata

attack targetClient_Endpoint

created at2024_02_28

deploymentPerimeter

confidenceHigh

signature severityMajor

tagDescription_Generated_By_Proofpoint_Nexus

updated at2024_02_28

mitre tactic idTA0011

mitre tactic nameCommand_And_Control

mitre technique idT1071

mitre technique nameApplication_Layer_Protocol

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