angr.analyses.decompiler.optimization_passes.inlined_string_transformation_simplifier

class angr.analyses.decompiler.optimization_passes.inlined_string_transformation_simplifier.FasterMemory

Bases: SimpleInterfaceMixin, DefaultFillerMixin, UltraPagesMixin, PagedMemoryMixin

A fast memory model used in InlinedStringTransformationState.

class angr.analyses.decompiler.optimization_passes.inlined_string_transformation_simplifier.InlinedStringTransformationState

Bases: object

The abstract state used in InlinedStringTransformationAILEngine.

__init__(project)

reg_store(reg, value)

Return type:

None

Parameters:

• reg (Register)

• value (BV)

reg_load(reg)

Return type:

BV | None

Parameters:

reg (Register)

mem_store(addr, value, endness)

Return type:

None

Parameters:

• addr (int)

• value (Bits)

• endness (str)

mem_load(addr, size, endness)

Return type:

BV | None

Parameters:

• addr (int)

• size (int)

vvar_store(vvar, value)

Return type:

None

Parameters:

• vvar (VirtualVariable)

• value (Bits | None)

vvar_load(vvar)

Return type:

BV | None

Parameters:

vvar (VirtualVariable)

class angr.analyses.decompiler.optimization_passes.inlined_string_transformation_simplifier.InlinedStringTransformationAILEngine

Bases: SimEngineNostmtAIL[InlinedStringTransformationState, BV | None, None, None]

A simple AIL execution engine

__init__(project, nodes, start, end, step_limit)

Parameters:

• nodes (dict[int, Any])

• start (int)

• end (int)

• step_limit (int)

nodes: dict[int, Any]

start: int

end: int

step_limit: int

stack_accesses: defaultdict[int, list[tuple[str, CodeLocation, Bits]]]

finished: bool

class angr.analyses.decompiler.optimization_passes.inlined_string_transformation_simplifier.InlineStringTransformationDescriptor

Bases: object

Describes an instance of inline string transformation.

__init__(store_block, loop_body, stack_accesses, beginning_stack_offset)

class angr.analyses.decompiler.optimization_passes.inlined_string_transformation_simplifier.InlinedStringTransformationSimplifier

Bases: OptimizationPass

Simplifies inlined string transformation routines.

ARCHES = None

PLATFORMS = None

STAGE: OptimizationPassStage = 3

NAME = 'Simplify string transformations'

DESCRIPTION = 'Simplify string transformations that are commonly used in obfuscated functions.'

__init__(*args, **kwargs)