ET WEB_CLIENT Lets Encrypt Free SSL Cert Observed in Tech Support Scams M1

SID: 2024124Rev: 40 views
History
Sourceet/open
CreatedMarch 31, 2017
UpdatedApril 23, 2024
Classificationsocial-engineering
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Lets Encrypt Free SSL Cert Observed in Tech Support Scams M1"; flow:established,to_client; tls.cert_subject; content:"O=Let|27|s Encrypt"; content:"CN=wide.singldays.top"; fast_pattern; reference:url,blog.sucuri.net/2017/02/javascript-injections-leads-to-tech-support-scam.html; reference:url,letsencrypt.org/about/; classtype:social-engineering; sid:2024124; rev:4; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_03_31, deployment Perimeter, confidence Medium, signature_severity Major, updated_at 2024_04_23;)

References

urlblog.sucuri.net/2017/02/javascript-injections-leads-to-tech-support-scam.html
urlletsencrypt.org/about/

Metadata

affected productWeb_Browsers
attack targetClient_Endpoint
created at2017_03_31
deploymentPerimeter
confidenceMedium
signature severityMajor
updated at2024_04_23

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