Apollo is a Windows agent written in C# using the 4.0 .NET Framework designed to be used in SpecterOps training offerings. Apollo lacks some evasive tradecraft provided by other commercial and open-source tools, such as more evasive network communications, PE manipulation, AMSI evasion, and otherwise; however, this project (in tandem with Mythic) is designed to introduce several quality of life improvements for an operator.
To install Apollo, you'll need Mythic installed on a remote computer. You can find installation instructions for Mythic at the Mythic project page.
From the Mythic install root, run the command:
./install_agent_from_github.sh https://github.com/MythicAgents/Apollo
Once installed, restart Mythic to build a new agent.
- Lateral Movement
- UAC Bypass
- Credential Tracking and Manipulation
- .NET Assembly and PowerShell Script Execution
- User Exploitation Suite
- SOCKSv5 Support
| Command | Syntax | Description |
|---|---|---|
| assembly_inject | assembly_inject [pid] [arch] [assembly] [args] |
Execute .NET assembly in remote process. |
| bypassuac | bypassuac (modal popup) |
Bypass UAC using the trusted mock directory technique. |
| cat | cat [file] |
Retrieve the output of a file. |
| cd | cd [dir] |
Change working directory. |
| cp | cp [source] [destination] |
Copy a file from source to destination. Modal popup. |
| download | download [path] |
Download a file off the target system. |
| execute_assembly | execute_assembly [assembly.exe] [args] |
Execute a .NET assembly registered with register_assembly |
| exit | exit |
Exit a callback. |
| get_current_injection_technique | get_current_injection_technique |
Show the current injection technique used in postex jobs. |
| getprivs | getprivs |
Enable as many privileges as possible for the current access token. |
| inject | inject |
Inject a new payload into a remote process. |
| jobkill | jobkill [jid] |
Kill a running job in the agent. |
| jobs | jobs |
List all running jobs. |
| keylog | keylog [pid] [arch] |
Inject a keylogger into a remote process. |
| kill | kill [pid] |
Attempt to kill the process specified by [pid]. |
| link | link |
Link to an SMB agent (defunct, modal popup) |
| list_assemblies | list_assemblies |
Show the assemblies currently cached by the agent. |
| list_injection_techniques | list_injection_techniques |
List all injection techniques the agent can potentially use for postex jobs. |
| list_scripts | list_scripts |
List all powershell scripts cached in the agent. |
| ls | ls [path] |
List files and folders in [path]. Defaults to current working directory. |
| make_token | make_token |
Impersonate a user using plaintext credentials. Modal popup. |
| mimikatz | mimikatz [args] |
Execute Mimikatz with the specified arguments. |
| mkdir | mkdir [dir] |
Create a directory. |
| mv | mv [source] [destination] |
Move a file from source to destination. Modal popup. |
| net_dclist | net_dclist [domain.local] |
List all domain controllers for the current or specified domain. |
| net_localgroup | net_localgroup [computer] |
Retrieve local groups known by a computer. Default to localhost. |
| net_localgroup_member | net_localgroup_member |
Retrieve membership information from a specified group on a given computer. Modal popup. |
| net_shares | net_shares [computer] |
Show shares of a remote PC. |
| powerpick | powerpick [command] |
Executes PowerShell in a sacrificial process. |
| powershell | powershell [command] |
Executes PowerShell in your currently running process. |
| printspoofer | printspoofer -c [command] |
Execute a command in SYSTEM integrity so long as you have SeImpersonate privileges. |
| ps_full | ps_full |
List verbose process information, including company names, command lines, desktop sessions, window titles, and more. |
| ps | ps |
List process information. |
| psclear | psclear |
Clears all PowerShell scripts known to the agent that were imported by psimport. |
| psexec | psexec |
Pivot to a remote computer by creating a new service. Modal popup. |
| psimport | psimport |
Reigster a powershell script to import on subsequent execution in powerpick/psinject/powershell commands. Can import more than one script (e.g., PowerView and PowerUp can both be loaded simultaneously.) To clear the script imports, use psclear. |
| psinject | psinject [pid] [x86/x64] [command] |
Executes PowerShell in the process specified by [pid]. Note: Currently stdout is not captured of child processes if not explicitly captured into a variable or via inline execution (such as $(whoami)). |
| pth | pth |
Modal popup. Use Mimikatz to patch LSASS and import credentials into memory. |
| pwd | pwd |
Print working directory. |
| reg_query_subkeys | reg_query_subkeys |
Query all subkeys of the specified registry path. Needs to be of the format HKCU:\, HKLM:\, or HKCR:\. |
| reg_query_values | reg_query_values |
Query all values of the specified registry path. Needs to be of the format HKCU:\, HKLM:\, or HKCR:\. |
| register_assembly | register_assembly |
Register an assembly with the agent to execute later in execute_assembly. Modal popup for file upload. |
| rev2self | rev2self |
Revert the access token to the original access token. |
| rm | rm [path] |
Remove a file specified by [path] |
| rmdir | rmdir [path] |
Remove a directory specified by [path] |
| run | run [binary.exe] [args] |
Runs the binary specified by [binary.exe] with passed arguments (if any). |
| screenshot | screenshot |
Get a screenshot of the current screen. |
| set_injection_technique | set_injection_technique [technique] |
Set the injection technique used in post-ex jobs that require injection. Must be a technique listed in the output of list_injection_techniques. |
| shell | shell [command] |
Run a shell command which will translate to a process being spawned with command line: cmd.exe /C [command] |
| shinject | shinject |
Inject given shellcode into a specified pid. Modal popup. |
| sleep | sleep [seconds] |
Set the callback interval of the agent in seconds. |
| socks | socks [action] [port] |
Standup the socks server to proxy network traffic. Action must be start or stop. If start, require port. |
| spawn | spawn |
Spawn a new callback. |
| spawnto_x64 | spawnto_x64 [path] |
Sets the process used in jobs requiring sacrificial processes to the specified [path]. |
| spawnto_x86 | spawnto_x86 [path] |
Sets the process used in jobs requiring sacrificial processes to the specified [path]. |
| steal_token | steal_token [pid] |
Attempts to steal the process's primary token specified by [pid] and apply it to our own session. |
| unlink | unlink |
Unlink a callback linked to via the link command. |
| unload_assembly | unload_assembly [Assembly.exe] |
Remove an assembly from the list of loaded assemblies. |
| upload | upload |
Upload a file to a remote path on the machine. Modal popup. |
| whoami | whoami |
Report access token for local and remote operations. |
Currently, only two C2 profiles are available to use when creating a new Apollo agent: HTTP and SMB.
The HTTP profile calls back to the Mythic server over the basic, non-dynamic profile. When selecting options to be stamped into Apollo at compile time, all options are respected with the exception of those parameters relating to GET requests.
The SMB profile only takes a pipe name on compilation. This pipe name can be randomly generated when creating the agent and can be generated based on a provided regex (e.g. [0-9a-z]{4}\-[0-9a-z]{8}\-[0-9a-z]{8}\-[0-9a-z]{4}). Currently there's an open issue with SMB messages, so SMB linking is non-functional.
SOCKS support is built-in to the agent and dispatched through the SocksManager file. To start the socks server, issue socks start [port], and to stop it issue socks stop. You can view active SOCKS proxies by clicking on the dropdown of a callback and clicking "Socks Proxies."
The ls command reports back a wealth of information and allows operators to easily copy file paths and examine permissions of files, in addition to being able to sort and filter files. Clicking the icon under the ACLs column will show all the permissions of a file. Additionally, this hooks into Mythic's native file browser.
This shows typical ls output:
Clicking the ACL icon shows permissions:
Interfaces with Mythic's filebrowser and caches data server-side:
When issuing ps_full, additional details are retrieved such as:
- Company name of the process executable
- Description of the process executable
- Full path of the process
- Integrity level of the process
- Desktop session
- Process command line arguments
This process listing also interfaces with Mythic's builtin process browser, which allows you to see process trees more easily.
Clicking the informational icon next to the name displays a popup window with more information.
Apollo can cache one or more .NET assemblies as well as one or more PowerShell Scripts with no size limitation on imported files.
The agent can change what code injection technique is in use by post-exploitation jobs that require injection through a suite of injection commands. Currently, injection techniques that are supported:
- CreateRemoteThread
- QueueUserAPC (Early Bird)
Apollo attempts to track the current access token in use by the agent through its own whoami command, which will track the impersonated user for local and remote operations.
Agent jobs are tracked by job ID, by command, and by the arguments passed to the command so that you know what job correlates to what tasking.
Commands that manipulate the disk, create new logons, or spawn new processes will document those changes in the Artifact Reporting page as shown below.
There's a number of niceities that come with pairing an agent to Mythic - too many to list in one README. Install the agent and see for yourself!
A big thanks goes to those who have contributed to the project in both major and minor ways.
- @its-a-feature
- @tifkin
- @rezn0k
- @thiagomayllart