Dead Code Injection
Protection ID: dead_code_injection
Dead Code Injection inserts unreachable code paths into your application binary that appear legitimate but are never executed. This forces analysts to spend time understanding code that has no actual function, significantly increasing the effort required for reverse engineering.
Configuration
{
"protections": {
"dead_code_injection": "medium"
}
}{
"protections": {
"dead_code_injection": "medium"
}
}Available levels: "light", "medium", "heavy".
How It Works
When analyzing a binary, reverse engineers must determine which code paths are relevant to the functionality they are studying. Dead Code Injection increases this workload by adding plausible code paths that look like real application logic but are never reached at runtime.
The injected code is designed to resemble legitimate operations, making it difficult to distinguish from real code through static analysis alone. An analyst cannot simply skip unfamiliar code, as they have no way to determine whether a given path is real or injected without tracing execution.
Intensity Levels
| Level | Description |
|---|---|
light | Adds a small number of dead paths with minimal binary size increase |
medium | Balanced injection that increases analysis effort without significant size overhead |
heavy | Aggressive injection with many dead paths for maximum confusion |
When to Use
Dead Code Injection is most effective when combined with Control Flow Obfuscation, which restructures the flow between real and injected code paths. Together, they make it very difficult to separate real logic from injected noise.
Related
- Control Flow Obfuscation - Restructure method logic
- Opaque Predicates - Guard dead paths with complex conditions
- Protections Overview - All available protections