ATT&CK coverage › Technique

Direct Volume Access T1006

Adversaries may directly access a volume to bypass file access controls and file system monitoring. Windows allows programs to have direct access to logical volumes. Programs with direct access may read and write files directly from the drive by analyzing file system data structures. This technique may bypass Windows file access controls as well as file system monitoring tools.

Events covered

1 catalog event are tagged with this technique by at least one rule.

ProviderEvent IDTitle
Sysmon9RawAccessRead

Authoring guide

Patterns shared across the 1 rule above: which fields they filter on, what specific values they look for, and what they exclude. Field names are normalized across vendors so Sigma's Image, Elastic's process.name, and Splunk's process_name collapse into one row. Each rule contributes at most once per row.

Fields filtered most (2 distinct)

The fields most rules look at when detecting this technique. The How column shows the operators authors use (eq, wildcard, regex_match, match) and how often each appears. Sample values are concrete examples to start from, not an exhaustive list.

FieldRulesHowSample values
Image1eq 1, match 1, ends_with 1, is_null 1, starts_with 1\Microsoft\, C:\$WinREAgent\Scratch\, System
Device1match 1floppy

Top indicator values (31 distinct)

Specific (field, operator, value) combinations the rules check for, ranked by how many rules under this technique use each one. The Corpus reach column counts how many rules across the entire catalog (any technique) check the same combination. High numbers point to widely-used indicators that are likely noisy on their own; combine them with another condition for useful signal. Blank means the combination is specific to rules under this technique.

FieldKindValueRules (here)Corpus reach
ImageeqSystem18
Imagestarts_withC:\Windows\SysWOW64\116
Imagestarts_withC:\Windows\Temp\12
Imageends_with\resources\app\git\mingw64\bin\git.exe1
Imagematch\AppData\Local\Keybase\upd.exe1
Imagematch\Microsoft\1
ImageeqC:\Windows\ImmersiveControlPanel\SystemSettings.exe14
Imagestarts_withC:\Windows\explorer.exe1
Imagestarts_withC:\Windows\servicing\1
Imagestarts_withC:\Program Files (x86)\114
Imageends_with\MpDefenderCoreService.exe1
Imagestarts_withC:\Windows\Temp\asgard2-agent\13
Imagestarts_withC:\Windows\SystemApps\12
Imagematch\AppData\19
ImageeqRegistry13
Imagestarts_withC:\Windows\CCM\1
Imagestarts_withC:\$WinREAgent\Scratch\12
Imagestarts_withC:\Windows\System32\116
Imagestarts_withC:\Program Files\115
Imagestarts_withC:\Windows\uus\12

Rules under this technique

Every rule in the catalog tagged with this technique, grouped by vendor. Click a rule title for its full predicates, exclusions, and indicators.

Sigma 1 rule