h3xduck
2b50d376a6
Updated function and configurator manager names to the used hook.
2022-01-26 13:04:23 -05:00
Marcos S. Bajo
9b366810b5
Merge pull request #18 from h3xduck/output_modifier
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Basic user memory manipulation + Control over rootkit modules and probes + Basic communication system
2022-01-16 13:36:12 +01:00
h3xduck
e10f5183b3
Updated readme with new PoC
2022-01-16 07:03:07 -05:00
h3xduck
3832d99af1
Updated file names and directory structure to the new multi-modules rootkit
2022-01-16 06:56:54 -05:00
h3xduck
fc0d30f06f
Completed output modification of sys_read. Created a simple PoC
2022-01-16 06:45:45 -05:00
h3xduck
99e9fd4277
FS module now can overwrite the buffer of read syscalls, effectively modifying what is returned as a result. Small PoC included now which modifies any first char in a string to 'O'. Use under discretion, may crash some programs, not enough checks implemented yet.
2022-01-15 16:16:30 -05:00
h3xduck
945e2f2def
Added new probe to read the previously extracted params and overwrite user memory. Still now fully working, just a backup
2022-01-14 22:05:08 -05:00
h3xduck
106f141c7e
Added new kprobe to the filesystem ebpf section. Now receiving read events, and storing them in a map for later use, along with a reference to the user-space memory buffer
2022-01-14 21:18:51 -05:00
h3xduck
193d9ec28f
Fixed the whole header setup, now correctly using the kernel headers instead of normal development ones. Ready to go on with original plan of file system hooking
2022-01-06 13:31:52 -05:00
h3xduck
4882ce790c
[BUILD FAILING] Checkpoint for backup, added new hook for file system, tweaked makefile for real kernel header files inclusion, still not working. Commiting for periodic backup
2022-01-05 20:34:53 -05:00
h3xduck
f8774ac9cf
[BUILD IS FAILING] Added file system hooks and other improvements. Uploading because of needing to backup
2022-01-04 20:09:59 -05:00
h3xduck
74873dbca5
Completed configuration module which enables to change the running ebpf modules in the rootkit at runtime. Minor changes and updated code structure
2022-01-04 13:26:13 -05:00
h3xduck
40da6b300b
Capability of attaching/detaching as many times as we want is finished. Now rootkit is fully cusotmizable from the userland (and thus remotely throught the backdoor)
2022-01-02 16:02:23 -05:00
h3xduck
adaf909781
Completed detachment of probes, enabling to attach and detach at will. Work needs to be done with xdp tho
2022-01-02 06:28:45 -05:00
h3xduck
d18b0aa23c
Further improvements in the rootkit configuration by the user
2021-12-31 12:02:35 -05:00
h3xduck
0863566292
Included a global config struct for controlling which hooks and functions of the rootkit should be active. Still work to be done in the bpf side
2021-12-31 09:54:47 -05:00
h3xduck
d9a70f866c
Modularized the ebpf program loading and attaching.
2021-12-30 21:09:26 -05:00
h3xduck
19a11da18f
Modularized the communication buffers
2021-12-30 12:48:45 -05:00
h3xduck
d5478ed7a0
Added more communication utils between userspace and kernel:
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* Included maps and kernel ring buffer communication
* Extended the ebpf structure to include more modules
* New utils in both user and kernelspace
* Other changes
* This update precedes a great effort on researching and learning and linux kernel tracing and studing ebpfkit from defcon. More functionalities should come rather quickly now.
2021-12-29 14:44:09 -05:00
h3xduck
510fc89de0
FIltering the found filepaths now fully working. We can now detect opened file descriptors of all processes
2021-12-24 10:22:23 -05:00
h3xduck
be9cc95daa
Adapted makefile for user includes and new source files
2021-12-24 06:59:30 -05:00
h3xduck
745ec4e395
Updated project structure, and added new list for the next incoming feature.
2021-12-21 20:08:49 -05:00
Marcos S. Bajo
1b2bc34826
Fix typo
2021-11-28 02:01:56 +01:00
Marcos S. Bajo
c1939dca2b
Update README.md
2021-11-28 02:01:32 +01:00
Marcos S. Bajo
3b2fbc3aa4
Merge pull request #9 from h3xduck/playzone
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First eBPF codebase, W+R access to incoming traffic and included PoC
2021-11-28 01:53:03 +01:00
h3xduck
2999a090b7
Fixed the client, now the payload shrinking is fully working, also the bug previously found seems to be nothing but an error of mine. Ready to merge!
2021-11-27 19:08:38 -05:00
h3xduck
a1119894cd
Made it work with an arbitrary length payload. Generalization with constants.h, now the PoC can be used for any shrinking/enlarging value. Discovered a very curious bug
2021-11-27 17:01:10 -05:00
h3xduck
a440326653
Arbitrary payload modification fully works now. Absolutely ridicous the time it took me (2 days) to realize I was computing the ip checksum with the old checksum values, which made it not to work. Finally can keep going
2021-11-27 14:10:43 -05:00
h3xduck
ca23880fd4
Arbitrary payload expansion is now working. IP checksum recomputation needs a revision, it is always 0...
2021-11-25 20:30:15 -05:00
h3xduck
253c302695
Payload increased length now being correctly recognized, but still cannot write to it yet.
2021-11-25 06:36:32 -05:00
h3xduck
442f955cf5
Added module which arbitrarily increases the size of the packet we received. Needs some tweaking to allow for modification of the header and payload fields yet, but the space allocation is already there. Also, multiple improvements overall
2021-11-24 20:41:07 -05:00
h3xduck
74cc7ff9e5
Further refactored code and dealt with the verifier issues with string comparisons
2021-11-24 12:17:31 -05:00
h3xduck
0568d5192d
Finished externalizing helper functions
2021-11-24 10:50:30 -05:00
h3xduck
72fddcac62
Finished adapting the code to tcp packets (+ researched a lot about xdp and ebpf, we should be OK with xdps, found a lot of ideas)
2021-11-23 19:55:44 -05:00
h3xduck
516e98748c
Finished adapting the client. Cleaned the user code and added getopt. The filter fully works now. Next step: return data to userspace via a map.
2021-11-22 20:02:47 -05:00
h3xduck
b04200526c
Finished xdp ebpf program, successfully showing packets received. Added client from Umbra, it will be the C&C client
2021-11-22 18:58:58 -05:00
h3xduck
23c7331d16
Continued working on first xdp filter, todo make bpf ring buffer work, check udp filter is up ans working
2021-11-21 20:00:43 -05:00
h3xduck
53da2d141d
Setup development environment with libbpf
2021-11-20 21:07:23 -05:00
MARCOS SANCHEZ BAJO
8e7fd92dc4
Added new folders
2021-11-10 14:02:36 +01:00
MARCOS SANCHEZ BAJO
67ad3d7290
Completed the matrix
2021-11-10 11:03:36 +01:00
MARCOS SANCHEZ BAJO
9b3e332bd8
Uploaded mitre att&ck diagram with some ideas
2021-11-06 14:49:42 +01:00
MARCOS SANCHEZ BAJO
89c267abcb
Included uc3m template
2021-10-27 22:29:57 +02:00
Marcos S. Bajo
8a8ec9ca8e
Initial commit
2021-10-27 19:47:58 +02:00
