Add Guezli/postfix-honeypot-users scenario#1806
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Trigger-type scenario that instant-bans IPs which attempt postfix SASL LOGIN with a well-known role/admin username (postmaster@, admin@, info@, support@, ...). These addresses should never be used as actual SMTP-AUTH logins, so a single attempt is a high-confidence attacker signal. Complements crowdsecurity/postfix-spam (fast-pattern, 6+ fast fails) and Guezli/postfix-sasl-bf (slow-pattern, 3+ fails per IP) by catching distributed wordlist attackers that make only 1-2 attempts per IP and slip below per-IP thresholds.
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Description
Adds a new scenario
Guezli/postfix-honeypot-usersthat instant-bans IPsattempting postfix SASL LOGIN with a well-known role/admin username
(
postmaster@,admin@,info@,support@,office@,sales@,contact@,webmaster@,root@,noreply@,abuse@,hostmaster@,marketing@,mail@,news@,sysadmin@,administrator@,user@,service@,helpdesk@).These addresses should never be used as actual SMTP-AUTH login accounts,
so a single attempt is high-confidence attacker signal (
type: trigger,confidence: 5).Complements:
crowdsecurity/postfix-spam(capacity 5 / leakspeed 10s — fast-pattern)Guezli/postfix-sasl-bf(capacity 2 / leakspeed 7200s — slow-pattern)by catching distributed wordlist attackers that make only 1-2 attempts per
IP and slip below both per-IP thresholds.
Checklist
.mddocumentation with acquisition example.tests/postfix-honeypot-users/passing locally (cscli hubtest run postfix-honeypot-users --clean-> all tests passed)hublint checkclean (0 warnings, 0 errors)crowdsecurity/postfix-logsparser, no new parser needed203.0.113.0/24)AI assistance
Claude Code was used to port the scenario from my personal repo
(https://github.com/Guezli/postfix-honeypot-users) into Hub format, generate
the hubtest assertions, and structure the documentation. The detection
logic, honeypot wordlist tuning, and field-of-use research are my own work;
I can explain every part of the contribution.