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radare2 script #77

merged 1 commit into from Aug 2, 2018


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commented Aug 1, 2018


I have ported the IDA pro script to radare2 ( Most of the code is the original code from @commial . The small r2 part is new.

Binary used for testing:

blksz    0x0
block    0x100
fd       3
file     /opt/gdb/arm/bin/gdbserver
format   elf
iorw     false
mode     r-x
size     0x3e874
humansz  250.1K
type     EXEC (Executable file)
arch     arm
binsz    255473
bintype  elf
bits     32
canary   false
class    ELF32
crypto   false
endian   little
havecode true
lang     c
linenum  false
lsyms    false
machine  ARM
maxopsz  4
minopsz  4
nx       true
os       linux
pcalign  4
pic      false
relocs   false
rpath    NONE
static   true
stripped true
subsys   linux
va       true

And now the script:

[*] Found 402 functions
[*] Get already known functions via r2 command aflqj ...
[*] Architecture: arm / Endianess: little / Bits: 32
[*] Launch identification on 402 function(s)
[+] Found strcpy at 0x31804
[+] Found strncpy at 0x318bc
[+] Found atoi at 0x338cc
[+] Found strtok at 0x31914
[+] Found isspace at 0x10a7c
[+] Found strncmp at 0x3187c
[+] Found strpbrk at 0x37b64
[+] Found strspn at 0x37bcc
[+] Found atoi at 0x338c0
[+] Found memset at 0x31620
[+] Found atoi at 0x338d4
[+] Found strnlen at 0x318e8
[+] Found memmove at 0x31610
[+] Found strcmp at 0x316c0
[+] Found strlen at 0x316e0
[+] Found strcat at 0x317ac
[+] Found strchr at 0x317d8
[*] Current: 100.00% (sub_0x00038f64)| Estimated time remaining: 0.00s
[*] Finished ! Found 17 candidates in 16.43s

I have tested it on an ARM, MIPS and x86_32 binary. It should work on a default r2 installation.

Michael Messner

@commial commial merged commit 761d627 into cea-sec:master Aug 2, 2018

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commented Aug 2, 2018

Thanks for the contrib!

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