Example
DEBUG command was used to create binaries/executabled from batch file. The command is still available in 32bit versions of windows , but is able to create binaries only with 16bit instructions with makes it unusable for 64bit machines. Now CERTUTIL is used for that purpose which allows to decode/encode binary/media files from HEX or BASE64 formats.Example with a file that creates icon file:
@echo off
del /q /f pointer.jpg >nul 2>nul
certutil -decode "%~f0" pointer.jpg
hh.exe pointer.jpg
exit /b %errorlevel%
-----BEGIN CERTIFICATE-----
/9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAAMgAA/+4ADkFkb2Jl
AGTAAAAAAf/bAIQACAYGBgYGCAYGCAwIBwgMDgoICAoOEA0NDg0NEBEMDg0NDgwR
DxITFBMSDxgYGhoYGCMiIiIjJycnJycnJycnJwEJCAgJCgkLCQkLDgsNCw4RDg4O
DhETDQ0ODQ0TGBEPDw8PERgWFxQUFBcWGhoYGBoaISEgISEnJycnJycnJycn/8AA
EQgACgAKAwEiAAIRAQMRAf/EAFsAAQEBAAAAAAAAAAAAAAAAAAAGBwEBAQAAAAAA
AAAAAAAAAAAAAAEQAAIBAwQDAAAAAAAAAAAAAAEDAgARBSExIwQSIhMRAQEBAAAA
AAAAAAAAAAAAAAARIf/aAAwDAQACEQMRAD8A13PZ5eIX3gO8ktKZfFPksvQ8r4uL
ecJmx1BMSbm8D6UVKVcg/9k=
-----END CERTIFICATE-----
Here's the same with hex format:
@echo off
(echo 0000 ff d8 ff e0 00 10 4a 46 49 46 00 01 02 00 00 64) >pointer.hex
(echo 0010 00 64 00 00 ff ec 00 11 44 75 63 6b 79 00 01 00) >>pointer.hex
(echo 0020 04 00 00 00 32 00 00 ff ee 00 0e 41 64 6f 62 65) >>pointer.hex
(echo 0030 00 64 c0 00 00 00 01 ff db 00 84 00 08 06 06 06) >>pointer.hex
(echo 0040 06 06 08 06 06 08 0c 08 07 08 0c 0e 0a 08 08 0a) >>pointer.hex
(echo 0050 0e 10 0d 0d 0e 0d 0d 10 11 0c 0e 0d 0d 0e 0c 11) >>pointer.hex
(echo 0060 0f 12 13 14 13 12 0f 18 18 1a 1a 18 18 23 22 22) >>pointer.hex
(echo 0070 22 23 27 27 27 27 27 27 27 27 27 27 01 09 08 08) >>pointer.hex
(echo 0080 09 0a 09 0b 09 09 0b 0e 0b 0d 0b 0e 11 0e 0e 0e) >>pointer.hex
(echo 0090 0e 11 13 0d 0d 0e 0d 0d 13 18 11 0f 0f 0f 0f 11) >>pointer.hex
(echo 00a0 18 16 17 14 14 14 17 16 1a 1a 18 18 1a 1a 21 21) >>pointer.hex
(echo 00b0 20 21 21 27 27 27 27 27 27 27 27 27 27 ff c0 00) >>pointer.hex
(echo 00c0 11 08 00 0a 00 0a 03 01 22 00 02 11 01 03 11 01) >>pointer.hex
(echo 00d0 ff c4 00 5b 00 01 01 01 00 00 00 00 00 00 00 00) >>pointer.hex
(echo 00e0 00 00 00 00 00 00 06 07 01 01 01 00 00 00 00 00) >>pointer.hex
(echo 00f0 00 00 00 00 00 00 00 00 00 00 01 10 00 02 01 03) >>pointer.hex
(echo 0100 04 03 00 00 00 00 00 00 00 00 00 00 01 03 02 00) >>pointer.hex
(echo 0110 11 05 21 31 23 04 12 22 13 11 01 01 01 00 00 00) >>pointer.hex
(echo 0120 00 00 00 00 00 00 00 00 00 00 00 11 21 ff da 00) >>pointer.hex
(echo 0130 0c 03 01 00 02 11 03 11 00 3f 00 d7 73 d9 e5 e2) >>pointer.hex
(echo 0140 17 de 03 bc 92 d2 99 7c 53 e4 b2 f4 3c af 8b 8b) >>pointer.hex
(echo 0150 79 c2 66 c7 50 4c 49 b9 bc 0f a5 15 29 57 20 ff) >>pointer.hex
(echo 0160 d9 ) >>pointer.hex
certutil -decodehex "pointer.hex" pointer.jpg
hh.exe pointer.jpg
exit /b %errorlevel%
As you can see hex requires additional temp file and hex format expansions is bigger
