Cobalt Strike Bof |best| May 2026

void go(char* args, int len) USER32$MessageBoxA(NULL, "Hello from BOF", "BOF Demo", MB_OK);

KERNEL32$CloseHandle(snap);

void go(char* args, int len) char* target_process; int pid; // Extract arguments passed from Beacon command line BeaconParseArguments(args, len, "iz", &target_process, &pid); cobalt strike bof

#include <windows.h> #include "beacon.h" void go(char* args, int len) // Your code here void go(char* args

void go(char* args, int len) HANDLE snap; PROCESSENTRY32 pe = sizeof(PROCESSENTRY32) ; snap = KERNEL32$CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); if (snap == INVALID_HANDLE_VALUE) return; int len) USER32$MessageBoxA(NULL

BOFs receive a raw byte buffer. Use beacon.h parsing macros:

This guide covers the essential workflow for writing, compiling, and using BOFs in Cobalt Strike.