title: Buffer Overflow Attempts
id: 18b042f0-2ecd-4b6e-9f8d-aa7a7e7de781
status: stable
description: Detects buffer overflow attempts in Unix system log files
references:
    - https://github.com/ossec/ossec-hids/blob/1ecffb1b884607cb12e619f9ab3c04f530801083/etc/rules/attack_rules.xml
author: Florian Roth (Nextron Systems)
date: 2017/03/01
tags:
    - attack.t1068
    - attack.privilege_escalation
logsource:
    product: linux
detection:
    keywords:
        - 'attempt to execute code on stack by'
        - 'FTP LOGIN FROM .* 0bin0sh'
        - 'rpc.statd[\d+]: gethostbyname error for'
        - 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
    condition: keywords
falsepositives:
    - Unknown
level: high