PcapSniffer - Empire Module


This page contains detailed information about how to use the python/collection/osx/sniffer Empire module. For list of all Empire modules, visit the Empire Module Library.

Module Overview

Name: PcapSniffer
Module: python/collection/osx/sniffer
Source code [1]: empire/server/modules/python/collection/osx/sniffer.yaml
Source code [2]: empire/server/modules/python/collection/osx/sniffer.py
MITRE ATT&CK: T1040
Language: Python
Needs admin: Yes
OPSEC safe: No
Background: No

The sniffer module will do a full network stack capture.

This module runs in a foreground and is OPSEC unsafe as it writes on the disk and therefore could be detected by AV/EDR running on the target system.

Note that the sniffer module does not need administrative privileges to work properly which means that a normal user can run this module.

Required Module Options

This is a list of options that are required by the sniffer module:

Agent
Agent to run from.

Debug
Enable to get verbose message status (Dont enable OutputExtension for this).
Default value: False.

LibcDylib
Path of the std C Dylib (Defualt).
Default value: /usr/lib/libSystem.B.dylib.

MaxPackets
Set max packets to capture.
Default value: 100.

PcapDylib
Path of the Pcap Dylib (Defualt).
Default value: /usr/lib/libpcap.A.dylib.

SavePath
Path of the file to save.
Default value: /tmp/debug.pcap.

Additional Module Options

This is a list of additional options that are supported by the sniffer module:

CaptureInterface
Set interface name ie. en0 (Auto resolve by default).

Sniffer Example Usage

Here's an example of how to use the sniffer module in the Empire client console:

[+] New agent Y4LHEV83 checked in
[*] Sending agent (stage 2) to Y4LHEV83 at 192.168.204.135
(empire usestager/osx/ducky) > usemodule python/collection/osx/sniffer

 Author       Alex Rymdeko-Harvey                                            
              @Killswitch-GUI                                                
 Background   False                                                          
 Comments     Using libpcap.dylib we can perform full pcap on a remote host. 
 Description  This module will do a full network stack capture.              
 Language     python                                                         
 Name         python/collection/osx/sniffer                                  
 NeedsAdmin   True                                                           
 OpsecSafe    False                                                          
 Techniques   http://attack.mitre.org/techniques/T1040                       


,Record Options----,----------------------------,----------,-------------------------------------,
| Name             | Value                      | Required | Description                         |
|------------------|----------------------------|----------|-------------------------------------|
| Agent            |                            | True     | Agent to run from.                  |
|------------------|----------------------------|----------|-------------------------------------|
| CaptureInterface |                            | False    | Set interface name ie. en0 (Auto    |
|                  |                            |          | resolve by default)                 |
|------------------|----------------------------|----------|-------------------------------------|
| Debug            | False                      | True     | Enable to get verbose message       |
|                  |                            |          | status (Dont enable OutputExtension |
|                  |                            |          | for this).                          |
|------------------|----------------------------|----------|-------------------------------------|
| LibcDylib        | /usr/lib/libSystem.B.dylib | True     | Path of the std C Dylib (Defualt)   |
|------------------|----------------------------|----------|-------------------------------------|
| MaxPackets       | 100                        | True     | Set max packets to capture.         |
|------------------|----------------------------|----------|-------------------------------------|
| PcapDylib        | /usr/lib/libpcap.A.dylib   | True     | Path of the Pcap Dylib (Defualt)    |
|------------------|----------------------------|----------|-------------------------------------|
| SavePath         | /tmp/debug.pcap            | True     | Path of the  file to save           |
'------------------'----------------------------'----------'-------------------------------------'

(Empire: usemodule/python/collection/osx/sniffer) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/python/collection/osx/sniffer) > set Debug False
[*] Set Debug to False
(Empire: usemodule/python/collection/osx/sniffer) > set LibcDylib /usr/lib/libSystem.B.dylib
[*] Set LibcDylib to /usr/lib/libSystem.B.dylib
(Empire: usemodule/python/collection/osx/sniffer) > set MaxPackets 100
[*] Set MaxPackets to 100
(Empire: usemodule/python/collection/osx/sniffer) > set PcapDylib /usr/lib/libpcap.A.dylib
[*] Set PcapDylib to /usr/lib/libpcap.A.dylib
(Empire: usemodule/python/collection/osx/sniffer) > set SavePath /tmp/debug.pcap
[*] Set SavePath to /tmp/debug.pcap
(Empire: usemodule/python/collection/osx/sniffer) > execute
[*] Tasked Y4LHEV83 to run Task 1
...

Now wait for the results to come.

Authors

References

See Also

Check also the following modules related to this module:

Version

This page has been created based on Empire version 4.1.3 (BC Security Fork).
Visit Empire Module Library for more modules.