ATT&CK coverage › Technique

Search Open Websites/Domains: Code Repositories T1593.003

Adversaries may search public code repositories for information about victims that can be used during targeting. Victims may store code in repositories on various third-party websites such as GitHub, GitLab, SourceForge, and BitBucket. Users typically interact with code repositories through a web application or command-line utilities such as git.

Events covered

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

ProviderEvent IDTitle
Sysmon1Process creation

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 (3 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
Image1ends_with 1\git.exe, \git-remote-https.exe
OriginalFileName1eq 1git.exe
CommandLine1match 1log4shell, eternalblue, clone

Top indicator values (18 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
Imageends_with\git-remote-https.exe1
CommandLinematcheternalblue1
CommandLinematchlog4shell1
CommandLinematchProofOfConcept1
CommandLinematchRemoteCodeExecution1
CommandLinematchInvoke-15
CommandLinematchgit-remote-https 1
OriginalFileNameeqgit.exe1
CommandLinematch clone 1
CommandLinematchMS17-1
CommandLinematcheternal-blue1
CommandLinematchvulnerability1
Imageends_with\git.exe1
CommandLinematchVulns1
CommandLinematchproxyshell1
CommandLinematchCVE-1
CommandLinematchpoc-1
CommandLinematchexploit1

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