Jean-Pierre LESUEUR (DarkCoderSc)
Lead Developer / Malware Researcher at Phrozen
Administrator Core Developer Top Contributor

With over 20 years of experience in Information Technology, I am a seasoned Security Researcher, Penetration Tester and Malware Researcher/Reverse Engineer. My expertise extends to development, proficient in languages such as C#, Python, Pascal/Delphi, and Assembly x86. In 2014, I founded PHROZEN, a venture dedicated to creating innovative cybersecurity solutions. My commitment lies in safeguarding our digital future, continuously advancing in knowledge and developing cutting-edge security measures.

Contributed Techniques
Technique Name Technique ID's Snippet(s) Rules(s) OS
Indirect Memory Writing U0525
Impair Defenses: Impair Command History Logging T1562.003
Right-to-Left Override (RLO) Extension Spoofing U1010
FuncIn U0132 U0221 U0308
SMB / Named Pipes U9011
C2 via FTP(S) U0910
Code Cave U0502
Contributed Code Snippets
Technique Language OS Creation Date
Indirect Memory Writing Delphi 4 weeks
System Binary Proxy Execution: Rundll32 Delphi 8 months, 4 weeks
APC injection FASM32 1 year, 5 months
Reflective DLL injection Delphi 1 year, 11 months
SMB / Named Pipes Delphi 2 years, 2 months
SMB / Named Pipes C# 2 years, 2 months
Right-to-Left Override (RLO) Extension Spoofing PowerShell 2 years, 2 months
C2 via FTP(S) Delphi 2 years, 4 months
C2 via FTP(S) C# 2 years, 4 months
Shortcut Hiding Python 2 years, 10 months
APC injection Delphi 3 years, 1 month
APC injection Delphi 3 years, 1 month
Indicator Removal: Timestomp C# 3 years, 2 months
Process Hollowing, RunPE Delphi 3 years, 4 months
ProcEnvInjection - Remote code injection by abusing process environment strings Delphi 3 years, 4 months
DLL Injection via CreateRemoteThread and LoadLibrary Delphi 3 years, 4 months
Checking Mouse Activity Delphi 3 years, 4 months
Detecting Mac Address C# 3 years, 4 months
NtQueryInformationProcess Delphi 3 years, 4 months
NtQueryInformationProcess C# 3 years, 4 months
File Melt C# 3 years, 4 months
File Melt Delphi 4 years, 8 months
Detecting Active Services Delphi 4 years, 8 months
NTFS Files Attributes Delphi 4 years, 10 months
Code Cave Python 4 years, 11 months
NtQueryObject Delphi 5 years
NtSetInformationThread Delphi 5 years, 1 month
IsDebuggerPresent Delphi 5 years, 1 month
NtSetDebugFilterState Delphi 5 years, 1 month
OutputDebugString Delphi 5 years, 1 month
SuspendThread Delphi 5 years, 1 month
Detecting Window with FindWindow API Delphi 5 years, 1 month
Detecting Window with FindWindow API Python 5 years, 1 month
IsDebugged Flag Delphi 5 years, 2 months