HIDS 11203

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Rule 11203
Status Active
Alert Message proftpd: Attempt to login using a non-existent user.


[edit] Description

This rule detects attempts to log into proftp accounts that do not exist on the system. This may indicate that an attacker is attempting to find default accounts to log into, or is carrying out a brute force attack.

[edit] Troubleshooting

[edit] False Positives

There are no known false positives with this rule. If you believe this is a false positive, please report this to our security team to determine if this is a legitimate case, or if its clever attack on your system. Do not disable this rule.

Instructions to report false positives are detailed on the Reporting False Positives wiki page.  If it is a false positive, we will fix the issue in the rules and get a release out to you promptly.

[edit] Additional Information

[edit] Similar Rules


[edit] Knowledge Base Articles


[edit] Outside References


[edit] Notes


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