1.3 KiB
1.3 KiB
API Reference: Debugging Malware with x64dbg
Overview
scripts/analyst.py generates an x64dbg command script of strategic API breakpoints for a
chosen goal (unpacking, injection, crypto, network, persistence). The output is a text script
to load in x64dbg; the tool does not run any process.
Dependencies
| Package | Version | Purpose |
|---|---|---|
| (stdlib) | — | argument handling, text output |
External tools
| Tool | Purpose |
|---|---|
| x64dbg | Windows user-mode debugging |
| Scylla (x64dbg plugin) | Dump memory and rebuild import tables when unpacking |
Core functions
build_script(presets)
Returns an x64dbg .txt script of bp commands for the selected presets, de-duplicating APIs
across presets.
PRESETS
Maps each analysis goal to the relevant Windows APIs.
Usage
python scripts/analyst.py breakpoints --preset unpacking > bp.txt
python scripts/analyst.py breakpoints --preset injection --preset crypto > bp.txt
# in x64dbg: scriptload bp.txt
Sources
- x64dbg documentation — https://help.x64dbg.com/
- Windows API reference — https://learn.microsoft.com/windows/win32/api/
- Common API-breakpoint strategy for manual unpacking (standard RE practice)