Problem with LM aad3b435b51404ee
#1
I'm experiencing a problem with LM hash aad3b435b51404ee and hashcat 3.00 on Windows 8.1.

I reduced the original problem I had to this:

file lm: aad3b435b51404ee
Command: hashcat64.exe -a 3 -m 3000 --potfile-disable lm

Output:

Code:
hashcat (v3.00-1-g67a8d97) starting... OpenCL Platform #1: Intel(R) Corporation ======================================== - Device #1: Intel(R) HD Graphics 5000, 356/1425 MB allocatable, 40MCU - Device #2: Intel(R) Core(TM) i7-4650U CPU @ 1.70GHz, skipped Hashes: 1 hashes; 1 unique digests, 1 unique salts Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates Applicable Optimizers: * Zero-Byte * Precompute-Final-Permutation * Not-Iterated * Single-Hash * Single-Salt * Brute-Force Watchdog: Temperature abort trigger disabled Watchdog: Temperature retain trigger disabled ATTENTION!   The wordlist or mask you are using is too small.   Therefore, hashcat is unable to utilize the full parallelization power of your device(s).   The cracking speed will drop.   Workaround: https://hashcat.net/wiki/doku.php?id=frequently_asked_questions#how_to_create_more_work_for_ INFO: approaching final keyspace, workload adjusted aad3b435b51404ee:X Session.Name...: hashcat Status.........: Cracked Input.Mode.....: Mask (?1) [1] Hash.Target....: aad3b435b51404ee Hash.Type......: LM Time.Started...: 0 secs Speed.Dev.#1...:        0 H/s (0.15ms) Recovered......: 1/1 (100.00%) Digests, 1/1 (100.00%) Salts Progress.......: 36/36 (100.00%) Rejected.......: 0/36 (0.00%) Started: Tue Jul 12 00:32:08 2016 Stopped: Tue Jul 12 00:32:09 2016

Remark this line in the output: aad3b435b51404ee:X
aad3b435b51404ee is the LM hash of the empty string, so I did not expect to see character X.

And when I run this again, I get a different character.

When I use a POT file, it also contains a character for this hash.


I have the sample problem on my laptop and desktop (both Windows 8.1), and with hastcat32.exe and hashcat64.exe.

Any insights appreciated.
#2
Clearly a bug. Please open a GitHub Isuee
#3
Issue reported and fixed: https://github.com/hashcat/hashcat/issues/434

Thanks.