packer
*
reverse
picoctf
Reverse this linux executable
The given binary is packed using upx. To unpack it I used
upx -d binary -o binary-decompressed.elf
To get the flag I used strings on the decompressed binary
strings out_dupx.elf | grep flag
Then the flag had to be decoded from hex
picoCTF{U9X_UnP4ck1N6_B1n4Ri3S_94104682}