OffensiveNim
sliver
OffensiveNim | sliver | |
---|---|---|
10 | 20 | |
2,685 | 7,568 | |
- | 1.4% | |
4.6 | 9.6 | |
about 1 month ago | 6 days ago | |
Nim | Go | |
BSD 2-clause "Simplified" License | GNU General Public License v3.0 only |
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OffensiveNim
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Nim reverse shell.
Thanks! Looks cool, have you found the offensive Nim repo? Good resource https://github.com/byt3bl33d3r/OffensiveNim
- OffensiveNim: My experiments in weaponizing Nim (https://nim-lang.org/)
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Offensive Nim
"Offensive " is about using a programming language for red teams. Stuff like writing malware, privilege escalation, antivirus evasion, etc... The "weaponization" here is about using the language for malicious apps.
There's nothing offensive about the MessageBox example, it's mostly showing how to use Win32 APIs in various ways, which is going to be necessary for a lot of the more malicious stuff, such as calling VirtualAllocEx to allocate executable code[1].
I doubt this will help either Russia nor Ukraine.
[0]: https://github.com/trickster0/OffensiveRust
[1]: https://github.com/byt3bl33d3r/OffensiveNim/blob/master/src/...
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My own Windows 10 VM keeps killing my meterpreter connection despite no defenses active
Now I'm learning to program in Nim and this Github repository is gold: https://github.com/byt3bl33d3r/OffensiveNim
- The virus issue
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Malware developers turn to 'exotic' programming languages to thwart researchers
Here is a cool repo showing some common red techniques implemented in Nim - https://github.com/byt3bl33d3r/OffensiveNim
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The cross-platform Nim language is starting to become a thing in offsec... here's a new RAT/agent, written in Nim, which communicates to a C2 over multiple protocols (http, tcp, udp)..
Nim is a computer language that has recently started to become popular (i.e., a thing) in offensive security. There's even a fairly popular project, called Offensive Nim (https://github.com/byt3bl33d3r/OffensiveNim) which has started collecting code on the topic.
- OffensiveNim: Experiments in weaponizing Nim language for implant development
sliver
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With VPN's such as Twin Gate and TailScale, why open ports to expose services to the internet?
IDK if you are too young to remember the fallout from Snowden, but the Kremlin threw out entire rooms computers and for a time used actual typewriters. Because those computers had, more or less, twingate connectors on them. That's a bit of a rich example, but you're essentially installing what sliver calls an implant, what meterpreter calls a payload, and what Cobalt Strike calls a beacon. It's cool if you want to, but there's no need when you can just open a port with the same technology a Fortune 50 does.
- Sliver Release v1.5.40 - This release fixes a vulnerability (CVE-2023-34758) in the Sliver Key Encapsulation Mechanism (KEM), where improper use of Nacl Box (libsodium) could allow a MitM attacker with a copy of the implant binary to recover the session key and arbitrarily encrypt/decrypt C2 message
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why no new Armitage :(((
What they said. Also, if you want a free alternative to cobalt: https://github.com/BishopFox/sliver
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Suggestions for C2 server implementation
Sliver is neat, https://github.com/BishopFox/sliver
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Cobalt Strike Alternative?
Armitage is precursor to CS but they diverged a long time ago. I ran up the armitage that comes with Kali these days, it has issues and bugs that would prevent it being useful. Sliver is probably the most usable FOSS C2. https://github.com/BishopFox/sliver
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What's your preferred C2 / framework and why?
I’m a huge fan of Sliver, super powerful and well written/maintained with a lot of care and attention paid to tradecraft. I’m a big fan of the features like the built-in support for DNS canaries to detect blue team analysis. Only downside is that the documentation may be a little lacking.
- Sliver - an open source cross-platform adversary emulation/red team framework, it can be used by organizations of all sizes to perform security testing. Sliver's implants support C2 over Mutual TLS, WireGuard, HTTP(S), and DNS and are dynamically compiled with per-binary asymmetric encryption keys.
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External DNS Pentest
- https://github.com/BishopFox/sliver/wiki/DNS-C2
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Evaluating Security Tools
For the additional more advanced steps I used sliver as a c2. Sliver is an excellent tool for the job and unlike some other tools, it's FOSS! You can easily replace sliver with your tool of choice, however.
- Sliver C2 Framework v1.5.11 released - as used by the Russian SVR - documented by NCSC, CISA, FBI and NSA in May 2021
What are some alternatives?
ArnoldC - Arnold Schwarzenegger based programming language
Empire - Empire is a PowerShell and Python post-exploitation agent.
bu - B)asic|But-For U)tility Code/Programs (in Nim & Often Unix/POSIX/Linux Context)
Mythic - A collaborative, multi-platform, red teaming framework
Bootstrapped-Freeze-Interpreter - I will basically provide minimal functions like goto, string, conditions, and methods and the rest will be handled inside the interpreted language
merlin - Merlin is a cross-platform post-exploitation HTTP/2 Command & Control server and agent written in golang.
community - All open-source content for the Prelude Operator C2 platform
venom - venom - C2 shellcode generator/compiler/handler
nio - Low Overhead Numerical/Native IO library & tools
ScareCrow - ScareCrow - Payload creation framework designed around EDR bypass.
nicodemus - A cross-platform Nim implant for Prelude Operator
empire - A PaaS built on top of Amazon EC2 Container Service (ECS)