ET MALWARE Observed MAZE Ransomware CnC Domain (checksoffice .me in TLS SNI)

7.0.35.0SID: 2030209Rev: 2Enabled1 views
Sourceet/open
Fileemerging-malware.rules
CreatedMay 22, 2020
UpdatedMarch 24, 2024
Classificationcommand-and-control
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed MAZE Ransomware CnC Domain (checksoffice .me in TLS SNI)"; flow:established,to_server; tls.sni; bsize:15; content:"checksoffice.me"; reference:url,www.fireeye.com/blog/threat-research/2020/05/tactics-techniques-procedures-associated-with-maze-ransomware-incidents.html; classtype:command-and-control; sid:2030209; rev:2; metadata:attack_target Client_Endpoint, created_at 2020_05_22, deployment Perimeter, malware_family Maze_Ransomware, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_24, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)

References

urlwww.fireeye.com/blog/threat-research/2020/05/tactics-techniques-procedures-associated-with-maze-ransomware-incidents.html

Metadata

attack targetClient_Endpoint
created at2020_05_22
deploymentPerimeter
malware familyMaze_Ransomware
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_03_24
mitre tactic idTA0011
mitre tactic nameCommand_And_Control
mitre technique idT1071
mitre technique nameApplication_Layer_Protocol

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