Commit Graph

4 Commits

Author SHA1 Message Date
Justin Ibarra 3fc34b86f2 Update License to Elastic v2 (#944) 2021-03-03 22:12:11 -09:00
Justin Ibarra 645a0cd67b [Rule Tuning] Add timestamp_override to all query and non-sequence EQL rules (#945)
* [Rule Tuning] Add timestamp_override field to rules
* add tests for lookback and timestamp_override
* fix dates and add test to ensure updated > creation
2021-02-17 19:49:58 -09:00
Justin Ibarra a0e86e20d6 [Rule Tuning] Add windows integration index to rules (#923) 2021-01-28 20:53:57 -09:00
Samirbous 6c37d5c6b4 [New Rule] Potential ProcessHerpaderping Detected (#418)
* [New Rule] Suspicious Execution via File Overwrite

* Update defense_evasion_overwrite_followed_by_execution.toml

* Update defense_evasion_overwrite_followed_by_execution.toml

* removed timeline_id

* fixed logic and also added references URL

* tuned logic to exclude potential FPs

not an actual FP, but only observed executable file overwrite by default on Windows is related to SoftwareDistribution, this does not match the sequence (Process Execution followed by Same Process File Overwrite) but added it to exclusion just in case.

* adjusted a bit desc and name

* changed rule file name

* adjusted executable.path for performance

avoiding leading wildcard, users can customize rule if they have different drive letters

* Update rules/windows/defense_evasion_potential_processherpaderping.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update rules/windows/defense_evasion_potential_processherpaderping.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* relinted

* lint

* ecs_version

* Update rules/windows/defense_evasion_potential_processherpaderping.toml

Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>

* Update rules/windows/defense_evasion_potential_processherpaderping.toml

Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>

* relinted

* deleted ecs_version

* Update rules/windows/defense_evasion_potential_processherpaderping.toml

Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>

* changed rule name as per ross sugges

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>
2020-12-07 20:08:12 +01:00