bitsecurerlab / afl-sensitive Goto Github PK

Hi Jinghan Wang and afl-sensitive authors,

We are currently having a discussion here regarding a possible discrepancy between the paper's description of the n-gram coverage calculation and implementation.

In summary, the paper describes n-gram coverage as left-shifting the prev_block_trans, while this shift is missing in the implementation. Are you able to shed any light on this?

Thanks!

Automatic Generation of Adversarial Examples for Interpreting Malware Classifiers
https://github.com/bitsecurerlab/adversarial_malware.git
The link to the open source code mentioned in the last article does not exist, I wonder if I can upload it. I would appreciate it if you could share it with me.My E-mail address is [email protected].

Hi

I'm trying to fuzz tic in ncurse-6.0 with your 7 strategies, but after about 1 hour or 2 they all stopped with error message:

[-] PROGRAM ABORT : Unable to communicate with fork server
         Location : run_target(), afl-fuzz.c:2168

My test enviroment is Ubuntu 16.04-64bit, 40 cores Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz, 64GB ram.

I compile the ncurse with command:

$ CPPFLAGS+=-P ../code/configure --prefix=/opt/disk/fuzz/test/tic/bin_normal
$ make && make install

And I compile the afl-bc/ct/ma... with command:

cd qemu_mode
./build_qemu_support.sh
cd ..
make

The fuzz command is like

$ /opt/disk/fuzz/afl-ct/afl-fuzz -Q -i in/ -o out_ct -l out_ct -m none -- ./bin_normal/bin/tic @@ -o /dev/null

Thanks for any reply.

I noticed in the paper your evaluation was done on Ubuntu 14, Is it possible to evaluate on Ubuntu 18? If so can you assist with the following error:

afl-sensitive/afl-ct/qemu_mode/qemu-2.3.0/user-exec.c: In function ‘cpu_resume_from_signal’:
afl-sensitive/afl-ct/qemu_mode/qemu-2.3.0/user-exec.c:71:37: error: dereferencing pointer to incomplete type ‘struct ucontext’
sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL);
^~
afl-sensitive/afl-ct/qemu_mode/qemu-2.3.0/user-exec.c: In function ‘cpu_x86_signal_handler’:
afl-sensitive/afl-ct/qemu_mode/qemu-2.3.0/user-exec.c:213:41: error: dereferencing pointer to incomplete type ‘struct ucontext’
#define PC_sig(context) ((context)->uc_mcontext.gregs[REG_RIP])
^
afl-sensitive/afl-ct/qemu_mode/qemu-2.3.0/user-exec.c:232:10: note: in expansion of macro ‘PC_sig’
pc = PC_sig(uc);
^~~~~~
afl-sensitive/afl-ct/qemu_mode/qemu-2.3.0/user-exec.c:237:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
afl-sensitive/afl-ct/qemu_mode/qemu-2.3.0/rules.mak:57: recipe for target 'user-exec.o' failed
make[1]: *** [user-exec.o] Error 1
Makefile:173: recipe for target 'subdir-x86_64-linux-user' failed
make: *** [subdir-x86_64-linux-user] Error 2