Compromise Host Software Binary T1554

Events covered

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

Authoring guide

Patterns shared across the 32 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 (42 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.

Top indicator values (3488 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 (194 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.

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 5 rules

• DNS HybridConnectionManager Service Bus
• HybridConnectionManager Service Installation
• HybridConnectionManager Service Running
• Linux Setgid Capability Set on a Binary via Setcap Utility
• Linux Setuid Capability Set on a Binary via Setcap Utility

Elastic 14 rules

• Deprecated - Adobe Hijack Persistence
• Potential Masquerading as Browser Process
• Potential Masquerading as Communication Apps
• Potential Masquerading as System32 DLL
• Potential Masquerading as System32 Executable
• Potential Masquerading as VLC DLL
• Potential OpenSSH Backdoor Logging Activity
• Potential SSH Password Grabbing via strace
• Renaming of OpenSSH Binaries
• Sublime Plugin or Application Script Modification
• Suspicious Communication App Child Process
• Suspicious Outlook Child Process
• Unusual Exim4 Child Process
• Unusual Process Modifying GenAI Configuration File

Splunk 4 rules

• Circle CI Disable Security Job
• Circle CI Disable Security Step
• GitHub Workflow File Creation or Modification
• Shai-Hulud Workflow File Creation or Modification

Kusto 9 rules

• Dynatrace - Problem detection
• Dynatrace Application Security - Code-Level runtime vulnerability detection
• Dynatrace Application Security - Non-critical runtime vulnerability detection
• Dynatrace Application Security - Third-Party runtime vulnerability detection
• GWorkspace - Unexpected OS update
• Potential Build Process Compromise
• Potential Build Process Compromise - MDE
• RecordedFuture Threat Hunting Hash All Actors
• SUNSPOT malware hashes