Recover password file .7z partially known
#2
extract the hash with 7z2hashcat first and confirm it looks similar to that of the example hash found on the wiki.

Then build your script for hashcat. Just use a bruteforce attack in my opinion. 
./hashcat64  -1 ?l?u?d -a 3 -m 11600 -w 4 -i --increment-min 11 --increment-max 12 hashfile.txt yourprefix?1?1?1?1?1

this does not include the perhaps $ at the beginning or at the end portion

Here's a benchmark of 1070 for your knowledge of how fast you're gonna be working at this.


Code:
OpenCL Platform #3: NVIDIA Corporation
======================================
* Device #4: GeForce GTX 1070, 2048/8192 MB allocatable, 15MCU

Benchmark relevant options:
===========================
* --optimized-kernel-enable

Hashmode: 11600 - 7-Zip

Speed.Dev.#4.....:     5843 H/s (20.37ms)

Good luck.


Messages In This Thread
RE: Recover password file .7z partially known - by slyexe - 01-05-2018, 01:16 AM