Offensive security
Thick Client Testing
Reverse engineering and traffic interception for desktop and legacy client-server apps.
Security testing
In plain terms Testing
What this is
Reverse engineering and traffic interception for desktop and legacy client-server apps.
Why it can hurt you
Thick clients trust their own binary, so business logic enforced only client-side is one debugger session from bypass.
Security testing
Why it matters to you Testing
The problem
Thick clients trust their own binary, so business logic enforced only client-side is one debugger session from bypass.
Legacy risk reduction
Close gaps in software that predates modern secure-SDLC practice.
IP protection
Harden against reverse-engineering of proprietary logic.
Security testing
How we do it Testing
Binary & memory analysis
Disassembly, DLL/library inspection, in-memory secret extraction.
Traffic interception
Proxying custom protocols to test the same flaws as a web API.
Local storage review
Config files, registry keys, and local DBs checked for stored secrets.
Security testing
What we typically find Testing
Client-side authorization
Access checks enforceable only in the UI layer, bypassed by direct calls.
Hardcoded credentials
API keys or DB credentials embedded in the binary.
Insecure protocol handling
Custom protocols with no integrity or replay protection.
No scanner dump. A fixed problem.
Every finding is reproduced by hand and comes with a working proof of concept.
Security testing
What lands on your desk Testing
In-depth report
Findings with binary offsets and reproduction steps.
Protocol map
Documented client-server message flow and where it breaks.
Security testing
What you get out of it Testing
Legacy risk reduction
Close gaps in software that predates modern secure-SDLC practice.
IP protection
Harden against reverse-engineering of proprietary logic.
Security testing
Step by step Testing
1. Binary & memory analysis
Disassembly, DLL/library inspection, in-memory secret extraction.
2. Traffic interception
Proxying custom protocols to test the same flaws as a web API.
3. Local storage review
Config files, registry keys, and local DBs checked for stored secrets.
Find out what we would find.
A scoping call is thirty minutes, costs nothing, and ends with a fixed price and a date. If we are not the right people for the job, we will tell you that too.