ET MALWARE Observed ZLoader Related Domain (lkjhgfgsdshja .com in TLS SNI)

7.0.35.0SID: 2035133Rev: 2Enabled3 views
Sourceet/open
Fileemerging-malware.rules
CreatedFebruary 8, 2022
UpdatedMarch 26, 2024
Classificationdomain-c2
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed ZLoader Related Domain (lkjhgfgsdshja .com in TLS SNI)"; flow:established,to_server; tls.sni; bsize:17; content:"lkjhgfgsdshja.com"; fast_pattern; reference:url,research.checkpoint.com/2022/can-you-trust-a-files-digital-signature-new-zloader-campaign-exploits-microsofts-signature-verification-putting-users-at-risk/; classtype:domain-c2; sid:2035133; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_02_08, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)

References

urlresearch.checkpoint.com/2022/can-you-trust-a-files-digital-signature-new-zloader-campaign-exploits-microsofts-signature-verification-putting-users-at-risk/

Metadata

attack targetClient_Endpoint
created at2022_02_08
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_03_26
mitre tactic idTA0011
mitre tactic nameCommand_And_Control
mitre technique idT1071
mitre technique nameApplication_Layer_Protocol

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