Major Transformations

Transformation	Description
Virtualize	Turn a function into a specialized interpreter.
Jit	Turn a function into one that generates its code at runtime.
JitDynamic	Turn a function into one that continously transforms itself at runtime.

Supporting Transformations

Transformation	Description
Flatten	Remove control flow from a function.
Merge	Merge two functions into one.
Split	Split a function into smaller parts.
RndArgs	Reorder function arguments and/or add bogus arguments
AddOpaque	Split up control flow by adding opaque branches.
EncodeLiterals	Replace literals (integers and strings) by less obvious expressions.
EncodeData	Replace integer variables with different representations.
EncodeArithmetic	Replace integer arithmetic with more complex expressions.

Library Transformations

Transformation	Description
InitOpaque, UpdateOpaque	Create types and variables necessary to introduce opaque predicates and expressions, and add updates to upaque variables to make them harder to analyze.
InitEntropy, UpdateEntropy	Create variables necessary to collect randomness, and insert instructions to collect randomness from input-dependent variables.
InitImplicitFlow	Initialize signal handlers needed for the anti taint analysis transformation.

Anti-Analysis Transformations

Transformation	Description
AntiBranchAnalysis, InitBranchFuns	Make it harder for automatic analysis tools (such as disassemblers) to determine the target of branches.
EncodeExternal, InitEncodeExternal	Hide API calls.
AntiAliasAnalysis	Disrupt static analysis tools that make use of inter-procedural alias analysis.
AntiTaintAnalysis	Disrupt dynamic analysis tools that make use of taint analysis.

Other Transformations

Transformation	Description
Ident	The identity transformation; it does nothing.
CleanUp	Last transformation to run, to clean up the generated code.
Info	Print internal information.
Measure	Measure the time to run a function.
Copy	Make a copy of a function.
RandomFuns	Generate random functions to be used as targets in cracking exercises.
Leak	Simulate a misbehaving obfuscator that leaks a secret from the program.