ET MALWARE Observed Cryptor Ransomware CnC Domain (e3kok4ekzalzapsf .onion .ws in TLS SNI)
Sourceet/open
CreatedJanuary 15, 2019
UpdatedSeptember 16, 2020
Classificationcommand-and-control
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Cryptor Ransomware CnC Domain (e3kok4ekzalzapsf .onion .ws in TLS SNI)"; flow:established,to_server; tls.sni; content:"e3kok4ekzalzapsf.onion.ws"; endswith; reference:md5,4b6f0113007cddea4ad31237add23786; classtype:command-and-control; sid:2026806; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_15, deployment Perimeter, malware_family CryptorRansomware, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_16, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
References
| md5 | 4b6f0113007cddea4ad31237add23786 |
Metadata
affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2019_01_15
deploymentPerimeter
malware familyCryptorRansomware
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2020_09_16
mitre tactic idTA0011
mitre tactic nameCommand_And_Control
mitre technique idT1071
mitre technique nameApplication_Layer_Protocol
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