Gather Victim Host Information T1592

Tactic: Reconnaissance

Adversaries may gather information about the victim's hosts that can be used during targeting. Information about hosts may include a variety of details, including administrative data (ex: name, assigned IP, functionality, etc.) as well as specifics regarding its configuration (ex: operating system, language, etc.).

Events covered

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

Authoring guide

Patterns shared across the 13 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
EventID5eq 54104
ScriptBlockText5contains 3, in 3select, win32_pnpentity , *camera*, *get-clipboardtext*, *get-wmiobject*
CommandLine4contains 4, ends_with 1 -name .htpasswd, -perm -4000 , /etc/sudoers, /t , .history
Image2ends_with 2/cat, /ed, /egrep, /head, /more
CommadCount1ge 18
OriginalFileName1eq 1dxdiag.exe
aws::errorMessage1contains 1hostpath_mapping
aws::userAgent1starts_with 1aws-cli
command1contains 1suspiciouscommands
process_name1eq 1dxdiag.exe

Top indicator values (54 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
EventIDeq
4104
5268
ScriptBlockTextcontains
select
33
ScriptBlockTextcontains
win32_pnpentity
1
ScriptBlockTextcontains
antispywareproduct
1
ScriptBlockTextcontains
antivirusproduct
1
ScriptBlockTextcontains
pnpclass
1
ScriptBlockTextcontains
where
1
ScriptBlockTextcontains
win32_process
1
Imageends_with
/cat
210
Imageends_with
/head
27
Imageends_with
/more
27
Imageends_with
/tail
27
Imageends_with
/ed
13
Imageends_with
/egrep
12
Imageends_with
/emacs
13
Imageends_with
/fgrep
1
Imageends_with
/grep
16
Imageends_with
/less
15
Imageends_with
/nano
14
CommadCountge
8
1
CommandLinecontains
-name .htpasswd
1
CommandLinecontains
-perm -4000
1
CommandLinecontains
/etc/sudoers
1
CommandLinecontains
/t
1
CommandLinecontains
/.bash_history
12
CommandLinecontains
/.zsh_history
12
CommandLineends_with
.history
12
CommandLineends_with
_history
12
CommandLineends_with
zhistory
12
OriginalFileNameeq
dxdiag.exe
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)

Sigma 3 rules

Splunk 6 rules

Kusto 4 rules