ATT&CK coverage › Technique

Application Window Discovery T1010

Adversaries may attempt to get a listing of open application windows. Window listings could convey information about how the system is used. For example, information about application windows could be used identify potential data to collect as well as identifying security tooling (Security Software Discovery) to evade.

Events covered

4 catalog events are tagged with this technique by at least one rule.

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4656A handle to an object was requested.
Security-Auditing4688A new process has been created.
Defender-DeviceProcessEvents9001000Process activity (any)

Authoring guide

Patterns shared across the 2 rules 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 (8 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
FileName1eq 1netstat.exe, nslookup.exe, whoami.exe
DiscoveryCommands1ge 13
CommandLine1ends_with 1, match 1/all, timeout=10, -t
InitiatingProcessFileName1in 1explorer.exe, mobsync.exe
ObjectName1eq 1ServicesActive
LogonId1eq 10x3e4
AccessMask1eq 10xf003f
ObjectType1eq 1SC_MANAGER OBJECT

Top indicator values (21 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
FileNameeqnet.exe1
DiscoveryCommandsge31
InitiatingProcessFileNameinexplorer.exe1
CommandLineends_with127.0.0.11
CommandLinematch-a14
FileNameeqwhoami.exe1
CommandLinematch/all1
CommandLinematchtimeout=101
FileNameeqnslookup.exe1
CommandLinematch-t1
InitiatingProcessFileNameinmobsync.exe1
CommandLinematchquerytype=ALL1
FileNameeqarp.exe1
FileNameeqping.exe1
FileNameeqnetstat.exe1
CommandLinematchview1
CommandLinematch-nao1
ObjectNameeqServicesActive1
AccessMaskeq0xf003f1
ObjectTypeeqSC_MANAGER OBJECT12

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

Kusto Query Language 1 rule