24 lines
791 B
YAML
24 lines
791 B
YAML
type: trigger
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format: 2.0
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#debug: true
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name: crowdsecurity/apache_log4j2_cve-2021-44228
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description: "Detect cve-2021-44228 exploitation attemps"
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filter: |
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evt.Meta.log_type in ["http_access-log", "http_error-log"] and
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(
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any(File("log4j2_cve_2021_44228.txt"), { Upper(evt.Meta.http_path) contains Upper(#)})
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or
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any(File("log4j2_cve_2021_44228.txt"), { Upper(evt.Parsed.http_user_agent) contains Upper(#)})
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or
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any(File("log4j2_cve_2021_44228.txt"), { Upper(evt.Parsed.http_referer) contains Upper(#)})
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)
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data:
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- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/log4j2_cve_2021_44228.txt
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dest_file: log4j2_cve_2021_44228.txt
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type: string
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groupby: "evt.Meta.source_ip"
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blackhole: 2m
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labels:
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type: exploit
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remediation: true
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