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/* | |
* Process arguments spoofing in GNU/Linux. | |
* | |
* Hide program arguments by overwriting them with null. | |
* | |
* You can read my full post here: https://rubenhortas.github.io/posts/process-argument-spoofing-gnu-linux/ | |
*/ | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.h> | |
int main(int argc, char *argv[]) { | |
char *argv0 = argv[0]; | |
char *argvi; | |
int i, len; | |
printf("PID: %d\n", getpid()); | |
printf("argv[0] '%s', address '%p'\n", argv[0], argv); | |
for (i = 1; i < argc; i++) { | |
argvi = argv[i]; | |
printf("argv[%d] '%s', address '%p'\n", i, argv[i], argvi); | |
len = strlen(argv[i]); | |
memset(argv[i], 0, len); // Overwrite everything with null | |
} | |
strcpy(argv0, "[kworker fake/1:1-events]"); // Overwrite the program name | |
while(1) { // Do some stuff | |
} | |
free(argv0); | |
free(argvi); | |
return 0; | |
} |
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