ET MALWARE Observed Suspected APT Domain (idfleaks .info in TLS SNI)

SID: 2049740Rev: 10 viewsHistory

Sourceet/open

CreatedDecember 18, 2023

UpdatedDecember 18, 2023

Classificationtrojan-activity

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Suspected APT Domain (idfleaks .info in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".idfleaks.info"; endswith; fast_pattern; classtype:trojan-activity; sid:2049740; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_12_18, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_18, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)

Metadata

attack targetClient_Endpoint

created at2023_12_18

deploymentPerimeter

confidenceHigh

signature severityMajor

tagDescription_Generated_By_Proofpoint_Nexus

updated at2023_12_18

mitre tactic idTA0011

mitre tactic nameCommand_And_Control

mitre technique idT1071

mitre technique nameApplication_Layer_Protocol

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