T1027.010: Command Obfuscation
MITRE ATT&CK T1027.010: Command Obfuscation Technique details for Linux, macOS, Windows, with detection guidance, relationships and mapped CVEs.
Security context for executives and security teams
Command obfuscation matters because it is a low-cost way for an intruder to make otherwise recognizable commands harder for tools and analysts to read. For leaders, the issue is not just “malicious PowerShell” or “suspicious shell activity”; it is whether the organization can still reconstruct what happened when commands are encoded, split, escaped, oddly cased, or hidden behind path tricks across Windows, Linux, and macOS.
Executive priority
Treat this as a SOC and incident-response readiness priority. ATT&CK links this sub-technique to many campaigns and groups, and to both endpoint behavior prevention and antivirus/antimalware mitigations. The business question is whether endpoint telemetry, logging retention, and analyst workflows can turn obfuscated command evidence into timely decisions during an intrusion. This is also useful audit evidence: show that command execution monitoring is not limited to plain-text signatures.
Technical view
Validate coverage for obfuscated command execution on Linux, macOS, and Windows. Focus on command and scripting interpreters, encoded command options, escape characters, string concatenation, environment-variable/token tricks, globbing, reversed or reordered strings, and abnormal directory traversal used to invoke binaries. Because MITRE provides no official detection text for this object, use the related DET0505 detection strategy as a pointer, but confirm locally that detections normalize or deobfuscate command lines before matching. Also correlate with the parent technique T1027, Obfuscated Files or Information, because command obfuscation may appear alongside broader encoded or disguised payload activity.
Likely telemetry
- Endpoint process creation events with full command line and parent-child process context
- Shell and scripting interpreter logs for PowerShell, Windows command shell, Bash, and other local interpreters where available
- Script block, module, or equivalent script execution logging where enabled
- Endpoint security alerts using behavioral, heuristic, or antimalware analysis
- File and process path evidence showing unusual directory traversal or disguised binary invocation
Detection direction
- Confirm detections do not rely only on exact string signatures; test whether they handle base64, URL encoding, escape characters, spacing changes, casing changes, concatenation, and path traversal variants.
- Tune for suspicious interpreter behavior and unusual parent-child process chains rather than treating every encoded or complex command as malicious.
- Preserve raw command lines and normalized/deobfuscated forms when possible so IR teams can explain intent after an alert.
- Review false positives from administrators, software deployment tools, and legitimate scripts that use encoding or complex shell syntax.
- Use relationship context cautiously: multiple ATT&CK groups and campaigns are mapped to this behavior, but those mappings should inform detection coverage and threat modeling rather than imply current local targeting.
Mitigation priorities
- Prioritize endpoint behavior prevention capable of identifying suspicious process behavior, not only known signatures.
- Maintain antivirus/antimalware deployment and update hygiene across supported endpoints, while recognizing that obfuscation is designed to reduce signature reliability.
- Harden and monitor command and scripting interpreter use, especially where administrative tooling commonly executes encoded or complex commands.
- Improve logging configuration and retention before an incident so responders can recover original command context.
- Use purple-team or detection-validation exercises to confirm that common obfuscation patterns are visible and triaged correctly without providing operators unnecessary offensive detail.
Additional notes and limits
This is a stealth sub-technique under T1027 and applies to Linux, macOS, and Windows. The official description highlights obfuscation through symbols, escape characters, encoding, string splitting, casing/order changes, globbing, environment variables, input streams, directory traversal, and tools such as Invoke-Obfuscation and Invoke-DOSfuscation. ATT&CK relationships include DET0505 as a detection strategy and mitigations M1040 and M1049.
MITRE does not provide official detection guidance in the supplied object. Local confidence depends on actual endpoint logging, command-line capture, interpreter logging, EDR behavior analytics, retention, and analyst ability to normalize obfuscated content. The listed group and campaign relationships demonstrate observed use in ATT&CK, not present-day exploitation or exposure for any specific organization.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Command Obfuscation
No official description is available in the imported ATT&CK source object.
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
All related ATT&CK context
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Object version and sync metadata
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Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
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