User Execution T0863

ICS Tactic: Execution

Authoring guide

Patterns shared across the 4 rules above: which fields they filter on, what specific values they look for, and what they exclude. The catalog normalizes field names 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 (10 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
ThreatLevel2eq 2dangerous, suspicious
name2regex_match 2(?i)^.*\.(doc|docx|docm|pdf|xls|xlsx|xlsm|html|zip)$(?-i)
Active1eq 1true
DataverseActivity_TimeGenerated1lt 1ExpirationDateTime
Fields1contains 1, is_not_null 1http
Message1in 1Create, Update
Operation1eq 1FileUploaded
SourceFileExtension1in 1bat, cmd, com
Url1is_not_null 1
m365::Workload1eq 1SharePoint

Top indicator values (24 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. Click a value to expand the rules under this technique that use it.

FieldKindValueRules (here)Corpus reach
ThreatLeveleq
dangerous
24
ThreatLeveleq
suspicious
24
nameregex_match
(?i)^.*\.(doc|docx|docm|pdf|xls|xlsx|xlsm|html|zip)$(?-i)
22
Activeeq
true
168
DataverseActivity_TimeGeneratedlt
ExpirationDateTime
12
Fieldscontains
http
1
Messagein
Create
12
Messagein
Update
13
Operationeq
FileUploaded
14
SourceFileExtensionin
bat
1
SourceFileExtensionin
cmd
1
SourceFileExtensionin
com
1
SourceFileExtensionin
cpl
1
SourceFileExtensionin
exe
1
SourceFileExtensionin
js
1
SourceFileExtensionin
jse
1
SourceFileExtensionin
msc
1
SourceFileExtensionin
ps1
1
SourceFileExtensionin
scr
1
SourceFileExtensionin
vbe
1
SourceFileExtensionin
vbs
1
SourceFileExtensionin
wsf
1
SourceFileExtensionin
wsh
1
m365::Workloadeq
SharePoint
13

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.

Platform (all)
Domain (all)

Kusto 4 rules