mirror of
https://github.com/splunk/security_content
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Patrick Bareiss
32 lines
1.3 KiB
YAML
32 lines
1.3 KiB
YAML
name: Samsam Test File Write
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id: 69c12d59-d951-431e-ab77-ec426b8d65e6
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version: 1
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date: '2018-12-14'
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description: The search looks for a file named "test.txt" written to the windows system
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directory tree, which is consistent with Samsam propagation.
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how_to_implement: You must be ingesting data that records the file-system activity
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from your hosts to populate the Endpoint file-system data-model node. If you are
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using Sysmon, you will need a Splunk Universal Forwarder on each endpoint from which
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you want to collect data.
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type: ESCU
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references: []
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author: Rico Valdez, Splunk
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search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
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as lastTime values(Filesystem.user) as user values(Filesystem.dest) as dest values(Filesystem.file_name)
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as file_name from datamodel=Endpoint.Filesystem where Filesystem.file_path=*\\windows\\system32\\test.txt
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by Filesystem.file_path | `drop_dm_object_name(Filesystem)` | `security_content_ctime(lastTime)`
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| `security_content_ctime(firstTime)` | `samsam_test_file_write_filter`'
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known_false_positives: No false positives have been identified.
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tags:
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analytics_story:
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- SamSam Ransomware
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kill_chain_phases:
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- Delivery
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cis20:
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- CIS 8
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nist:
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- PR.PT
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- DE.CM
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security_domain: endpoint
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asset_type: Endpoint
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