ET MALWARE Observed Malicious Domain SSL Cert in SNI (RansomBlocker CnC)
Sourceet/open
CreatedJuly 20, 2017
UpdatedAugust 12, 2020
Classificationcommand-and-control
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Malicious Domain SSL Cert in SNI (RansomBlocker CnC)"; flow:established,to_server; tls.sni; content:"4fp2u2ue4pyqdpfu"; fast_pattern; reference:md5,2067d1cb1a25c6d6d371339fad9123ba; classtype:command-and-control; sid:2024485; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_07_20, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_12;)
References
| md5 | 2067d1cb1a25c6d6d371339fad9123ba |
Metadata
affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2017_07_20
deploymentPerimeter
performance impactModerate
confidenceHigh
signature severityMajor
updated at2020_08_12
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