TOOLS [PTsecurity] Sliver C2 HTTP Key exchange (English)
Sourceptrules/open
CreatedSeptember 4, 2025
UpdatedSeptember 4, 2025
Classificationattempted-admin
alert http any any -> any any (msg:"TOOLS [PTsecurity] Sliver C2 HTTP Key exchange (English)"; flow:established, to_server; http.method; content:"POST"; http.uri; pcre:"/\?(?:[a-z_]=[a-z0-9_]{7,14}&[a-z_]{2}=[a-z0-9_]{8,13}|[a-z_]{2}=[a-z0-9_]{8,13}&[a-z_]=[a-z0-9_]{7,14}|[a-z_]=[a-z0-9_]{7,14})$/U"; http.header.raw; content:!"Cookie|3a|"; nocase; content:"Accept-Encoding|3A| gzip|0d 0a|"; nocase; http.request_body; pcre:"/^(?:[A-Z]{2,20}\s?){80,}$/P"; reference:url, github.com/BishopFox/sliver; reference:url, rules.ptsecurity.com; classtype:attempted-admin; sid:10008540; rev:4;)
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