Remote Services T0886

ICS Tactics: Initial Access, Lateral Movement

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 (12 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
AlertName2contains 1, eq 1Unauthorized SSH Access, internet
ProviderName2eq 2IoTSecurity
isNew2eq 2True
Active1eq 1true
ClientIp1is_not_null 1
DataverseActivity_TimeGenerated1lt 1ExpirationDateTime
DeviceProduct1eq 1iSID
EmailSourceIpAddress1is_not_null 1
EventClassID1in 1156, 161, 169
NetworkDestinationIP1is_not_null 1
NetworkIP1is_not_null 1
NetworkSourceIP1is_not_null 1

Top indicator values (16 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.

Exclusions (16 distinct)

Field/operator/value combinations excluded by rules under this technique (top-level not() clauses), sorted by how many rules exclude each. These are the false-positive paths the community has learned to filter out. A new rule that ignores the high-count entries here will likely fire on the same noisy paths. Click a value to expand the rules under this technique that exclude it.

FieldKindValueRules excluding
ClientIpcidr_match
10.0.0.0/8
1
ClientIpcidr_match
127.0.0.0/8
1
ClientIpcidr_match
169.254.0.0/16
1
ClientIpcidr_match
172.16.0.0/12
1
ClientIpcidr_match
192.168.0.0/16
1
ClientIpstarts_with
127.
1
ClientIpstarts_with
::
1
ClientIpstarts_with
fe80
1
TI_ipEntitycidr_match
10.0.0.0/8
1
TI_ipEntitycidr_match
127.0.0.0/8
1
TI_ipEntitycidr_match
169.254.0.0/16
1
TI_ipEntitycidr_match
172.16.0.0/12
1
TI_ipEntitycidr_match
192.168.0.0/16
1
TI_ipEntitystarts_with
127.
1
TI_ipEntitystarts_with
::
1

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