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-rw-r--r--bruiser/ramdump.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/bruiser/ramdump.c b/bruiser/ramdump.c
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+++ b/bruiser/ramdump.c
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+
+/***************************************************Project Mutator****************************************************/
+/*first line intentionally left blank.*/
+/*bruiser's ram dump module*/
+/*Copyright (C) 2018 Farzad Sadeghi
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 3
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.*/
+/***********************************************************************************************************/
+#include <inttypes.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ptrace.h>
+#include <sys/wait.h>
+#include <unistd.h>
+/***********************************************************************************************************/
+FILE* dump_memory_region(FILE* pMemFile, uint64_t start_address, uint64_t length) {
+ FILE* out_file;
+ uint64_t address;
+ int pageLength = 4096;
+ unsigned char page[pageLength];
+ fseeko(pMemFile, start_address, SEEK_SET);
+
+ for (address=start_address; address < start_address + length; address += pageLength) {
+ fread(&page, 1, pageLength, pMemFile);
+ fwrite(&page, 1, pageLength, out_file);
+ }
+}
+
+FILE* dump_ram(unsigned int pid) {
+ long ptraceResult = ptrace(PTRACE_ATTACH, pid, NULL, NULL);
+ if (ptraceResult < 0) {
+ printf("ramdump: unable to attach to the pid specified\n");
+ return NULL;
+ }
+ wait(NULL);
+
+ char mapsFilename[1024];
+ char proc_str[6];
+ sprintf(proc_str, "%d", pid);
+ sprintf(mapsFilename, "/proc/%s/maps", proc_str);
+ FILE* pMapsFile = fopen(mapsFilename, "r");
+ char memFilename[1024];
+ sprintf(memFilename, "/proc/%s/mem", proc_str);
+ FILE* pMemFile = fopen(memFilename, "r");
+ char line[256];
+ FILE* out_file;
+ while (fgets(line, 256, pMapsFile) != NULL) {
+ uint64_t start_address;
+ uint64_t end_address;
+ sscanf(line, "%08lx-%08lx\n", &start_address, &end_address);
+ dump_memory_region(pMemFile, start_address, end_address - start_address);
+ }
+
+ fclose(pMapsFile);
+ fclose(pMemFile);
+
+ ptrace(PTRACE_CONT, pid, NULL, NULL);
+ ptrace(PTRACE_DETACH, pid, NULL, NULL);
+ return out_file;
+}
+
+#pragma weak main
+int main(int argc, char **argv) {
+ if (argc != 2) {
+ printf("you were supposed to type in the int value");
+ return 1;
+ }
+ int pid = atoi(argv[1]);
+ FILE* out_file = dump_ram(pid);
+}
+/***********************************************************************************************************/
+/*last line is intentionally left blank*/
+