ET MALWARE Observed Reverse Shell Payload Delivery Domain (opentunnel .quest) in TLS SNI
Sourceet/open
CreatedSeptember 13, 2022
UpdatedSeptember 17, 2024
Classificationdomain-c2
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Reverse Shell Payload Delivery Domain (opentunnel .quest) in TLS SNI"; flow:established,to_server; tls.sni; content:"opentunnel.quest"; bsize:16; fast_pattern; reference:url,www.huntress.com/blog/unraveling-a-reverse-shell-with-process-insights; classtype:domain-c2; sid:2038825; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_13, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_17, reviewed_at 2024_09_17;)
Metadata
affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2022_09_13
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_09_17
reviewed at2024_09_17
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