Detects overwriting (effectively wiping/deleting) of a file.

Description

Detects overwriting (effectively wiping/deleting) of a file.

Query · wazuh

View raw source upstream ↗ Wazuh XML 
field columns.cmdline="dd if=/dev/null|dd if=/dev/zero"

No license declared

socfortress/Wazuh-Rules publishes no license, and without an express grant the default is all rights reserved. The query above is synthesized from the rule rather than copied out of it, so you can see what the rule matches on; the rule as written stays upstream.

Read the full rule at Osquery/200200-osquery.xml ↗. Why this rule is treated this way.

Fires when

Wazuh evaluates a chain top-down. Every rule above this one must match on the same event before this rule is tested at all.

  1. 200223 osquery: process started. · name = bpf_process_events|es_process_events anchor level 3
    decoded_as=json AND field name="bpf_process_events|es_process_events"
  2. 200256 Detects overwriting (effectively wiping/deleting) of a file. refinement level 12 this rule
    field columns.cmdline="dd if=/dev/null|dd if=/dev/zero"

Rule dependencies

Depends on

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