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Add ssdeep hash #1169

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merged 7 commits into from
Jan 15, 2021
Merged

Add ssdeep hash #1169

merged 7 commits into from
Jan 15, 2021

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andrewstucki
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Closes #1167

@andrewstucki andrewstucki added the enhancement New feature or request label Dec 4, 2020
ebeahan
ebeahan reviewed Dec 14, 2020
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I made a few comments concerning the descriptions, but hash.ssdeep seems like a useful, straight-forward field addition.

Is this related at all to the WIP VT module work from elastic/beats#21815? If so, perhaps @dcode @peasead could also weigh in with any feedback?

schemas/hash.yml
@@ -5,12 +5,16 @@
type: group
short: Hashes, usually file hashes.
description: >
The hash fields represent different hash algorithms and their values.
The hash fields represent different bitwise hash algorithms and their values.
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Is the addition of bitwise here to broaden the category's description, since by adding ssdeep, the fieldset would now support both cryptographic and fuzzy hash types?

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Yep, I'd be fine modifying the language to specifically call out the categories, but didn't necessarily want to preclude other widely used non-crypto hashes being added here in the future (i.e. FarmHash, MurmurHash, etc.).

At the same time, the "bitwise" was also to add clarification that we're not going to add what I refer to as "entity-specific" hashes here (i.e. fingerprinting hashes that are related to format-specific features). This field really is for hashes that can be computed over a generic chunk of bytes.

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@ebeahan -- it's independent of the VT module, but VT and other AV vendors do use ssdeep. I'd be more than happy for others to chime in though as it might expose some other suggested additions for generic fuzzy hashes.

ebeahan
ebeahan approved these changes Dec 22, 2020
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LGTM 👍

I'd still like @rw-access to weigh in with a quick review before merging.

@ebeahan ebeahan added the ready Issues we'd like to address in the future. label Jan 5, 2021
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ebeahan commented Jan 15, 2021

@elasticmachine, run elasticsearch-ci/docs

@ebeahan ebeahan merged commit a3edf88 into elastic:master Jan 15, 2021
ebeahan pushed a commit to ebeahan/ecs that referenced this pull request Jan 15, 2021
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Add ssdeep hash (elastic#1169)
5fc9da4 
# Conflicts:
#	experimental/generated/csv/fields.csv
#	generated/csv/fields.csv
@ebeahan ebeahan mentioned this pull request Jan 15, 2021
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@ebeahan
[1.x] Add ssdeep hash (#1169) (#1227)
a487613 
Co-authored-by: Andrew Stucki <[email protected]>
@andrewstucki andrewstucki deleted the ssdeep branch January 15, 2021 19:05
@ebeahan ebeahan mentioned this pull request Jan 15, 2021
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@ebeahan ebeahan removed the ready Issues we'd like to address in the future. label Feb 10, 2021
@marc-gr marc-gr mentioned this pull request Feb 19, 2021
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@dseeley dseeley mentioned this pull request May 5, 2021
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dseeley added a commit to dseeley/ecs that referenced this pull request May 5, 2021
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Upstream ECS merge of v1.9.0 (#4)
fc14145 
* bumping version for 1.x release branch (elastic#921)

* [1.x] add related.hosts (elastic#913) (elastic#924)

* [1.x][DOCS] Fixes SIEM links (elastic#936)

* [1.x] Consolidate field-details doc template (elastic#897) (elastic#946)

* Add http.[request|response].mime_type (elastic#944) (elastic#949)

* [1.x] Cut 1.6 Changelog (elastic#933) (elastic#952) (elastic#953)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Add threat.technique.subtechnique (elastic#951) (elastic#956)

Co-authored-by: Ross Wolf <[email protected]>

* [1.x] Nest as for foreign reuse (elastic#960) (elastic#962)

* [1.x] Remove `expected_event_types` from protocol (elastic#964) (elastic#965)

* [1.x] Expand definitions of source and destination field sets (elastic#967) (elastic#973)

* [1.x] Introduce `--strict` flag (elastic#937) (elastic#975)

* [1.x] Add example value composite type checking (elastic#966) (elastic#976)

* Add example value composite type checking (elastic#966)
* generate csv artifact

* [1.x] Add event category configuration (elastic#963) (elastic#977)

* [1.x] Add normalizer multi-field capability (elastic#971) (elastic#978)

Co-authored-by: Eric Beahan <[email protected]>

Co-authored-by: Madison Caldwell <[email protected]>

* [1.x] Add mapping network event guidance doc (elastic#969) (elastic#983)

* [1.x] Removing unneeded link under `Additional Information` (elastic#984) (elastic#985)

* [1.x] Add discrete attribute to field details page headers (elastic#989) (elastic#990)

* [1.x] Uniformity across domain name breakdown fields (elastic#981) (elastic#994)

Co-authored-by: Mathieu Martin <[email protected]>

* Add --oss flag to the ECS generator script (elastic#991) (elastic#995)

* Add network directions ingress and egress (elastic#945) (elastic#997)

* Mention ECS Mapper in the main documentation (elastic#987) (elastic#1000)

Co-authored-by: Dan Roscigno <[email protected]>

* [1.x] Introduce experimental artifacts (elastic#993) (elastic#1001)

Co-authored-by: Mathieu Martin <[email protected]>

* Bump version to 1.8.0-dev in branch 1.x (elastic#1011)

* Cut 1.7 changelog (elastic#1010) (elastic#1012)

* [1.x] Clarify that file extension should exclude the dot. (elastic#1016) (elastic#1020)

* [1.x] Add usage docs section (elastic#988) (elastic#1024)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] feat: include alias path when generating template (elastic#877) (elastic#1035)

Co-authored-by: Richard Gomez <[email protected]>

* [1.x] Add support for `scaling_factor` in the generator (elastic#1042) (elastic#1055)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Add fallback for constant_keyword (elastic#1046) (elastic#1056)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Add wildcard type support to go code generator (elastic#1050) (elastic#1057)

* add wildcard type support

* also add version and constant_keyword

* changelog

* [1.x] New default make task that generates main and experimental artifacts. (elastic#1041) (elastic#1060)

Also changing the order of the 'generate' task: it now starts with the new generator, then runs the legacy scripts.

* [1.x] Change the index pattern in the sample template. (elastic#1048) (elastic#1068)

* [1.x] Prepare link to Logs docs changing with the 7.10 release in "getting-started" (elastic#1073) (elastic#1079)

Co-authored-by: EamonnTP <[email protected]>

* [1.x] Prepare link to Logs docs changing with the 7.10 release in "products-solutions" page (elastic#1074) (elastic#1083)

Co-authored-by: EamonnTP <[email protected]>

* [1.x] Add event.category session. (elastic#1049) (elastic#1093)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Add event.category registry (elastic#1040) (elastic#1094)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Add --ref support for experimental artifacts (elastic#1063) (elastic#1101)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Remove experimental event.original definition (elastic#1053) (elastic#1104)

* [1.x] Add missing `process.thread.name` to experimental definitions (elastic#1103) (elastic#1106)

* [1.x] Remove index parameter for wildcard fields (elastic#1115) (elastic#1119)

* [1.x] Add dns.answer object into experimental schema (elastic#1118) (elastic#1121)

* [1.x] Clarify x509 definition guidance for network events with only one cert (elastic#1114) (elastic#1123)

* [1.x] Indicate when artifacts include experimental changes (elastic#1117) (elastic#1125)

* [1.x] Add os.type field, with list of allowed values (elastic#1111) (elastic#1130)

* [1.x] Add support for constant_keyword's 'value' parameter (elastic#1112) (elastic#1132)

* [1.x] Beta label support (elastic#1051) (elastic#1133)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Backport elastic#1134 and elastic#1135 (elastic#1136)

* Remove temporary ifeval in "getting started" page, add link to Metrics docs (elastic#1134)
* Remove temporary ifeval from products page, add link to Metrics (elastic#1135)

* Two small documentation backports (elastic#1149)

* Remove an incorrect `event.type` from the 'converting' page (elastic#1146)
* Mention Logstash support for ECS in the 'products' page (elastic#1147)

* [1.x] Reinforce the exclusion of the leading dot from url.extension (elastic#1151) (elastic#1152)

* [1.x] Make all fields linkable directly via an HTML ID (elastic#1148) (elastic#1154)

* [1.x] Tracing fields should be at the root (elastic#1165)

* Add notice to the tracing field set, about not nesting field names. (elastic#1162)
* Tracing fields should be at top level in Beats artifact (elastic#1164)

* [1.x] Usage of brackets for a URL containing IPv6 address (elastic#1131) (elastic#1168)

* [1.x] 6.x index template data type fallback (elastic#1171) (elastic#1172)

* [1.x] Apply RFC 0007 stage 3 changes - multi-user (elastic#1066) (elastic#1175)

Conflict: deleted file rfcs/text/0007-multiple-users.md as RFCs are not backported to version branches.

* [1.x] Handle `error.stack_trace` case for ES 6.x template (elastic#1176) (elastic#1177)

* [1.x] Add composable index templates artifacts (elastic#1156) (elastic#1179)

* [1.x] Move _meta section back inside mappings, in legacy templates. (elastic#1186) (elastic#1187)

Backports the following commits to 1.x:

* Move _meta section back inside mappings, in legacy templates. (elastic#1186) 

This fixes an issue introduced by elastic#1156, discovered in elastic#1180. Composable templates support `_meta` at the template's root, but legacy templates don't. So we're just putting it back inside the mappings for legacy templates.

This also fixes missing updates to the component template, after the introduction of wildcard in elastic#1098.

* [1.x] Apply the RFC 0005 stage 2 (host metrics) changes in the experimental artifacts (elastic#1159) (elastic#1184)

Co-authored-by: Mathieu Martin <[email protected]>

* [1.x] Stage 3 changes for wildcard RFC 0001 (elastic#1098) (elastic#1183)

* [1.x] Conditional handling in es_template.template_settings (elastic#1191) (elastic#1192)

* [1.x] Artifacts docs page (elastic#1189) (elastic#1195)

* [1.x] Remove beta warning label from categorization fields docs (elastic#1067) (elastic#1196)

* [1.x] Correct wording of `event.reference` description (elastic#1181) (elastic#1197)

* Bump version to 1.9.0-dev in branch 1.x (elastic#1198)

* [1.x] Cut 1.8 FF changelog.next.md elastic#1199 (elastic#1201)

* Merge custom and core multi_fields arrays (elastic#982) (elastic#1213)

Co-authored-by: Jonathan Buttner <[email protected]>

* [1.x] Stage 2 changes for RFC 0009 - data_stream fields (elastic#1215) (elastic#1222)

* [1.x] add http.request.id (elastic#1208) (elastic#1223)

Co-authored-by: Eric Beahan <[email protected]>
Co-authored-by: Gil Raphaelli <[email protected]>

* [1.x] add cloud.service.name (elastic#1204) (elastic#1224)

* add cloud.platform

* expand cloud.platform description

* move to cloud.service.name

Co-authored-by: Gil Raphaelli <[email protected]>

* [1.x] Add ssdeep hash (elastic#1169) (elastic#1227)

Co-authored-by: Andrew Stucki <[email protected]>

* [CI] Switch to GitHub actions (elastic#1236) (elastic#1245)

Co-authored-by: Eric Beahan <[email protected]>

Co-authored-by: Andrew Stucki <[email protected]>

* Revert wildcard adoption back to experimental stage (elastic#1235) (elastic#1243)

* Add scaled_float type to go generator (elastic#1250) (elastic#1251)

* add scaled_float

* changelog

* Add categorization fields usage docs (elastic#1242) (elastic#1257)

* add time_zone, postal_code, and continent_code (elastic#1229) (elastic#1258)

* Specify MAC address format (elastic#456) (elastic#1260)

Co-authored-by: Robin Schneider <[email protected]>

* finalize 1.8.0 changelog (elastic#1262) (elastic#1265)

* Add additional host fields (elastic#1248) (elastic#1267)

Co-authored-by: kaiyan-sheng <[email protected]>

* Stage 1 changes for RFC 0014 - extend pe fields (elastic#1256) (elastic#1270)

* Add 2 fields to code_signature (elastic#1269) (elastic#1272)

Co-authored-by: Yamin Tian <[email protected]>

* Stage 3 changes for RFC 0007 - remove beta attribute (elastic#1271) (elastic#1273)

* Stage 1 experimental changes for RFC 0008 - threat.indicator fields (elastic#1268) (elastic#1274)

* Stage 1 changes for RFC 0015 - add elf fieldset (elastic#1261) (elastic#1275)

* Cut 1.9 FF CHANGELOG.next.md (elastic#1277)

* lock go version in actions (elastic#1283) (elastic#1290)

* Bump jinja2 from 2.11.2 to 2.11.3 in /scripts (elastic#1310) (elastic#1320)

* Bump jinja2 from 2.11.2 to 2.11.3 in /scripts

* Bump pyyaml from 5.3b1 to 5.4 in /scripts (elastic#1318) (elastic#1325)

Co-authored-by: Eric Beahan <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Adjust terminology - change whitelist to allowlist (elastic#1315) (elastic#1331)

Co-authored-by: Dominic Page <[email protected]>

* Remove -dev label from 1.9 version (elastic#1329)

* remove -dev label from 1.9 version

* generate artifacts

* removing rules artifacts

* Cut 1.9 changelog (elastic#1328)

* move 1.9 changes to changelog

* add 1.9 release changes
This was referenced May 5, 2021
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Add fuzzy hashes (ssdeep)
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