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[VSFTPD-CORRELATED] Authentication after exploit attempt

[VSFTPD-CORRELATED] Authentication after exploit attempt

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Detection Logic

alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[VSFTPD-CORRELATED] Authentication after exploit attempt"; content: "OK LOGIN"; default_proto: tcp; default_dst_port: $FTP_PORT; classtype: correlated-attack; program: vsftpd; xbits: isset,exploit_attempt,track ip_src; threshold: type suppress, track by_src, count 5, seconds 3600; sid:5003331; rev:3;)

Field Validations

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