ET MALWARE Observed ACR Stealer Domain (requests .nicotine .surf in TLS SNI)

7.0.35.0SID: 2072047Rev: 1Enabled3 views
Sourceet/open
Fileemerging-malware.rules
CreatedSeptember 15, 2026
UpdatedSeptember 15, 2026
Classificationtrojan-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed ACR Stealer Domain (requests .nicotine .surf in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".requests.nicotine.surf"; endswith; fast_pattern; reference:md5,f9de04a40b98f268fc2e52cb5ac7d415; classtype:trojan-activity; sid:2072047; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_09_15, deployment Perimeter, confidence High, signature_severity Major, updated_at 2026_09_15;)

References

md5
f9de04a40b98f268fc2e52cb5ac7d415
Google SearchBrave Search

Metadata

attack targetClient_Endpoint
created at2026_09_15
deploymentPerimeter
confidenceHigh
signature severityMajor
updated at2026_09_15

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