Supply Chain Compromise T1195

Events covered

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

Authoring guide

Patterns shared across the 34 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 (29 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 (1302 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 (47 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 16 rules

• Axios NPM Compromise File Creation Indicators - Linux
• Axios NPM Compromise File Creation Indicators - MacOS
• Axios NPM Compromise File Creation Indicators - Windows
• Axios NPM Compromise Indicators - Linux
• Axios NPM Compromise Indicators - macOS
• Axios NPM Compromise Indicators - Windows
• LiteLLM / TeamPCP Supply Chain Attack Indicators
• Notepad++ Updater DNS Query to Uncommon Domains
• Octopus Scanner Malware
• Shai-Hulud 2.0 Malicious NPM Package Installation
• Shai-Hulud 2.0 Malicious NPM Package Installation - Linux
• Shai-Hulud Malicious Bun Execution
• Shai-Hulud Malicious Bun Execution - Linux
• Suspicious Child Process of Notepad++ Updater - GUP.Exe
• TeamPCP LiteLLM Supply Chain Attack Persistence Indicators
• Uncommon File Created by Notepad++ Updater Gup.EXE

Elastic 5 rules

• Command Execution via SolarWinds Process
• Deprecated - SUNBURST Command and Control Activity
• SolarWinds Process Disabling Services via Registry
• Suspicious Execution from VS Code Extension
• Suspicious SolarWinds Child Process

Splunk 9 rules

• 3CX Supply Chain Attack Network Indicators
• 3CXDesktopApp.exe Execution (EDR)
• 3CXDesktopApp.exe Execution (Sysmon)
• 3CXDesktopApp.exe Execution (Windows Event Log)
• GitHub Workflow File Creation or Modification
• Hunting 3CXDesktopApp Software
• Shai-Hulud 2 Exfiltration Artifact Files
• Shai-Hulud Workflow File Creation or Modification
• Windows Vulnerable 3CX Software

Kusto 4 rules

• Solorigate Defender Detections
• SUNBURST and SUPERNOVA backdoor hashes
• SUNBURST and SUPERNOVA backdoor hashes (Normalized File Events)
• SUNBURST network beacons